Showing posts with label public health. Show all posts
Showing posts with label public health. Show all posts

Tuesday, April 28, 2026

Avian #Influenza #Report - Reporting period: April 19 - 25 '26 (Wk 17) (HK CHP, April 28 '26): 1 new human case of #H5N1 virus in #Cambodia

 


{Excerpts}

(...)

{-- H5N1:}

- Date of report: 22/04/2026 

- Country: Cambodia

- Province / Region: Svay Rieng province

- District / City: Romduol district

- Sex: Female

- Age: 66 

- Condition at time of reporting: Hospitalised 

- Subtype of virus: H5N1 

(...)

Source: 


Link: https://www.chp.gov.hk/files/pdf/2026_avian_influenza_report_vol22_wk17.pdf

____

Friday, April 24, 2026

#USA, #Wastewater Data for Avian #Influenza #H5 (CDC, April 24 '26)

 


{Excerpt}

(...)

Time Period: April 12, 2026 - April 18, 2026

-- A(H5) Detection6 site(s) (1.3%)

-- No Detection444 site(s) (98.7%)

-- No samples103 site(s)


{Click on image to enlarge}



(...)

Source: 


Link: https://www.cdc.gov/wastewater/emerging-viruses/h5.html

____

Thursday, April 23, 2026

#Measles - #Bangladesh (WHO, D.O.N., April 23 '26)

 


Situation at a glance

On 4 April 2026, the National International Health Regulations (IHR) Focal Point for Bangladesh notified WHO of a nationwide increase in measles cases, geographically affecting 58 out of 64 districts across all eight divisions in Bangladesh

A total of 19 161 suspected measles cases and 2897 laboratory-confirmed measles cases have been reported between 15 March and 14 April 2026, including 166 measles related deaths (CFR 0.9%). 

The majority (79%) of the reported cases are children aged under 5 years

A targeted measles-rubella (MR) vaccination campaign started on 5 April, and various outbreak response measures are ongoing including strengthening nationwide surveillance and epidemiological analysis to enhance case detection and reporting. 

Based on currently available information, WHO assesses the risk at the national level as high due to ongoing transmission across multiple divisions, the large number of susceptible children, documented immunity gaps, and the occurrence of suspected measles-related deaths.


Description of the situation

On 4 April 2026, the National IHR Focal Point of Bangladesh notified WHO of a significant increase in measles cases, driven by sustained domestic transmission

Since January 2026, Bangladesh has experienced a marked increase in measles cases. 

Geographically, cases have been reported across all eight divisions, in 58 out of 64 districts (91% of districts), indicating widespread transmission nationally.  

Since 15 March 2026 and as of 14 April, a total of 19 161 suspected measles cases and 2973 laboratory-confirmed measles cases have been reported. 

Moreover, 166 suspected measles-related deaths (CFR 0.9%) and 30 confirmed measles-related deaths (CFR= 1.1%) have been recorded. 

A total of 12 318 hospital admissions and 9772 hospital discharges have also been reported. 

The highest cumulative burden of suspected measles cases since 15 March 2026 has been reported in Dhaka (8263 cases), Rajshahi (3747 cases), Chattogram (2514 cases), and Khulna (1568 cases). 

In Dhaka, cases are concentrated in densely populated informal settlements, including Demra, Jatrabari, Kamrangirchar, Korail, Mirpur, and Tejgaon industrial and slum clusters.  (HEOC, DGHS, 15 April 2026).

Children aged under 5 years account for the majority of reported cases (79%), including children aged under 2 years (66%) and infants aged under 9 months (33%). 

A total of 166 suspected deaths have been reported (CFR 1%), mainly among unvaccinated children aged under 2 years.


Epidemiology

Measles is a highly contagious acute viral disease which affects individuals of all ages and remains one of the leading causes of death among young children globally. The mode of transmission is airborne or via droplets from the nose, mouth, or throat of infected persons.

Initial symptoms, which usually appear 10-14 days (range 7-23 days) after infection, include high fever, usually accompanied by a runny nose, bloodshot eyes, cough and tiny white spots inside the mouth. The rash usually appears 10-14 days after exposure and spreads from the head to the trunk to the lower extremities. A person is infectious from four days before up to four days after the appearance of the rash. There is no specific antiviral treatment for measles, and most people recover within 2-3 weeks.

Measles is usually a mild or moderately severe disease. However, measles can lead to complications such as pneumonia, diarrhoea, secondary ear infection, inflammation of the brain (encephalitis), blindness, and death. Postinfectious encephalitis can occur in about one in every 1000 reported cases. About two or three deaths may occur for every 1000 reported cases.

Vaccination with measles containing vaccine is safe and effective, providing protection against measles and its complications for all eligible populations. WHO recommends two doses of Measles Containing Vaccine (MCV) to be provided through the routine immunization schedule. Strong routine immunization systems are therefore critical foundations for achieving and sustaining high levels of population immunity to vaccine preventable diseases such as measles.

WHO further recommends the conduct of Supplementary Immunization Activities (SIAs) or mass immunization campaigns as an effective strategy for delivering vaccination to children who may have been missed by routine services. In protecting vulnerable populations against measles, mass vaccination campaigns can rapidly improve population immunity by reducing the number of susceptible individuals in the population.


Public health response

A nationwide measles-rubella (MR) vaccination campaign was approved by the National Immunization Technical Advisory Group (NITAG) on 30 March 2026, targeting children aged 6–59 months (with expanded coverage for 6–8 months), and started on 5 April in 30 upazilas (sub-districts) of 18 priority districts. A nationwide campaign commenced on 20 April. 

Vitamin A campaign was held throughout the country on 15 March 2025.  During this outbreak response, Vitamin A supplementation is provided to all suspected and confirmed measles cases as an essential component of standard treatment and case management. 

District Rapid Response Teams (RRTs) have been activated, and vaccine procurement fast-tracked by the Ministry of Health. Other outbreak response actions include strengthening routine immunization to prevent further spread of the outbreak, enhancing hospital preparedness, ensuring availability of vitamin A, strengthening isolation capacity, and reinforcing infection prevention and control measures. 

Strengthening nationwide surveillance and epidemiological analysis, is also ongoing including measures to improve case detection and reporting. Trainings are being conducted at health facilities to improve case detection and reporting, and weekly situation reports produced to support evidence-based decision-making. 

National and divisional guidelines have been issued to guide response activities, including vaccination, clinical management, infection prevention and control, patient care pathways, and procurement. 


WHO risk assessment

Measles is a highly contagious viral disease that affects susceptible individuals of all ages and remains one of the leading causes of death among young children globally. Measles can cause serious illness in at-risk groups, including children under 5 years of age, those who are malnourished especially those with vitamin A deficiency and people with weakened immune systems. Measles complications include hearing loss, diarrhoea, pneumonia and blindness. Severe complications of measles include encephalitis, brain damage, and death. 

The current outbreak in Bangladesh is occurring in the context of suboptimal population immunity. A substantial proportion of cases occurred among children who were either unvaccinated or had received only one dose of measles-containing vaccine. In addition, some children were infected before reaching the age of eligibility for vaccination at 9 months. Most cases (91%) occurred among children aged 1 to 14 years, indicating substantial immunity gaps in this age group. 

Before this outbreak, Bangladesh had made substantial progress towards measles elimination. Reported coverage with the first dose of measles-containing vaccine increased considerably between 2000 (89% - WUENIC) and 2016 (118% - WUENIC), while coverage with the second dose also improved between its nationwide introduction in 2012 (22% - WUENIC) and 2024 (121% - WUENIC). During the same period, confirmed measles incidence declined sharply. However, recent declines in MR1 and MR2 coverage due to nationwide stockout of MR vaccine between 2024-2025, combined with routine immunization gaps and the absence of regular nationwide supplementary measles-rubella campaigns since 2020, have increased the number of susceptible children and contributed to the current outbreak. 

The risk at the national level is assessed as high due to ongoing transmission across multiple divisions, the large number of susceptible children, documented immunity gaps, and the occurrence of suspected measles-related deaths. The concentration of cases among unvaccinated and under-vaccinated children including infants too young to be vaccinated, raises concern for continued uninterrupted transmission and severe disease outcomes. 

Overall, the outbreak suggests a reversal from Bangladesh’s previous progress towards measles elimination and highlights increasing vulnerability to sustained transmission. Continued spread is likely unless urgent measures are implemented to strengthen surveillance, rapidly detect and respond to cases, and close immunity gaps through high-quality vaccination activities. 

There are considerable risks of cross-border spread, facilitated by cross-border population movement, with major urban centres such as Dhaka, Chattogram, Sylhet, and Cox’s Bazar being important international travel and transit hubs increasing the likelihood of national and international spread, particularly among unvaccinated or inadequately vaccinated travelers. 

Measles is endemic across the South-East Asia region. The risk is assessed as high at regional level.

Bangladesh shares extensive land borders with India and Myanmar, and population mobility across these borders may facilitate continued transmission. In Myanmar there is a considerable number of unvaccinated/zero dose children. With ongoing conflict and humanitarian crisis, surveillance and response capacities are limited. India, despite achieving high vaccination coverage, has reported a rise in case count over the past six months. Cities with high incidence such as Jashore and Chapainawabganj (an identified hotspot) share busy land crossings with India, thereby increasing the risk of introduction across the border. Despite Bangladesh’s progress towards measles elimination the current outbreak highlights the vulnerability of the population and underscores the fragility of immunization gains.

The risk at the global level is assessed as moderate due to high levels of population mobility, combined with ongoing widespread measles transmission and immunity gaps.


WHO advice

WHO recommends maintaining sustained homogeneous coverage of at least 95% with the first and second doses of the MCV vaccine in all municipalities and strengthening integrated epidemiological surveillance of measles and rubella to achieve timely detection of all suspected cases in public, private, and social security healthcare facilities.  

WHO recommends strengthening epidemiological surveillance in high-traffic border areas to rapidly detect and respond to highly suspected measles cases. Providing a rapid response to imported measles cases to avoid the re-establishment of endemic transmission through the activation of rapid response teams trained for this purpose and by implementing national rapid response protocols when there are imported cases. Once a rapid response team has been activated, continued coordination between the national, sub-national, and local levels must be ensured, with permanent and fluid communication channels between all levels. During outbreaks, it is recommended to establish adequate hospital case management to avoid nosocomial transmission, with appropriate referral of patients to isolation rooms (for any level of care) and avoiding contact with other patients in waiting rooms and/or other hospital rooms.  

WHO recommends vaccination of at-risk populations (without proof of vaccination or immunity against measles and rubella), such as healthcare workers, persons working in tourism and transportation (hotels, airports, border crossings, mass transportation, and others), and international travelers. Implementing a plan to immunize migrant populations in high-traffic border areas, prioritizing those considered at-risk, including both migrants and residents, in these municipalities increases vaccination coverage to increase population immunity.  

In all settings, consideration should be given to providing susceptible contacts with post-exposure prophylaxis (PEP), including a dose of MCV or normal human immunoglobulin (NHIG) (if available) for those at risk and in whom the vaccine is contraindicated. In well-resourced settings, MCV should be provided to susceptible contacts within 3 days. For contacts for whom vaccination is contraindicated or is not possible within 3 days post-exposure, consideration can be given to providing NHIG up to 6 days post-exposure. Infants, pregnant women, and the immunocompromised should be prioritized.  

WHO recommends maintaining a stock of the MR and/or measles, mumps, rubella (MMR) vaccine, and syringes/supplies for control actions of imported cases. Facilitating access to vaccination services according to the national scheme to those from other countries or people from the same country who perform temporary activities in countries with ongoing outbreaks; displaced populations; indigenous populations, or other vulnerable populations.  

WHO does not recommend any restriction on travel and trade based on the information available on the current outbreak.  


Further information

-- World Health Organization. Measles [Internet]. Geneva: World Health Organization; [cited 2026 Apr 6]. Available from: https://www.who.int/health-topics/measles 

-- World Health Organization. Measles fact sheet [Internet]. Geneva: World Health Organization; 2025 Nov 28 [cited 2026 Apr 6]. Available from: https://www.who.int/news-room/fact-sheets/detail/measles  

-- World Health Organization. Immunization dashboard [Internet]. Geneva: World Health Organization; [cited 2026 Apr 6]. Available from: https://immunizationdata.who.int/  

-- World Health Organization. Measles outbreak guide [Internet]. Geneva: World Health Organization; 2022 Aug 31 [cited 2026 Apr 6]. Available from: https://www.who.int/publications/i/item/9789240052079  

-- Directorate General of Health Services (Bangladesh). Press releases [Internet]. Dhaka; [cited 2026 Apr 6]. Available from: https://dghs.gov.bd/pages/press-releases/  

-- Measles vaccines: WHO position paper – April 2017; https://www.who.int/publications/i/item/who-wer9217-205-227

-- Measles: Vaccine Preventable Diseases Surveillance Standards; https://www.who.int/publications/m/item/vaccine-preventable-diseases-surveillance-standards-measles

__

Citable reference: World Health Organization (23 April 2026). Disease Outbreak News: Measles in Bangladesh. Available at: https://www.who.int/emergencies/disease-outbreak-news/item/2026-DON598

Source: 


Link: https://www.who.int/emergencies/disease-outbreak-news/item/2026-DON598

____

#Cambodia reported fourth #human #infection with #H5N1 #influenza virus this year (ANTARA, Apr. 23 '26)

 


{Excerpt}

PHNOM PENH (ANTARA) - A 66-year-old woman from Svay Rieng province, southeastern Cambodia, has been confirmed positive for H5N1 bird flu, becoming the fourth case in 2026, the Ministry of Health said in a statement on Wednesday.

The victim, who lives in Trapaing Thkov village in Romduol district, was confirmed positive for the virus by the Cambodian National Institute of Public Health on Tuesday (April 21).

The patient is currently being quarantined at a hospital under intensive care by a team of doctors, the statement said.

(...)

Source: 


____

Tuesday, April 21, 2026

Avian #Influenza #Report - Reporting period: April 12 - 18 '26 (Wk 16) (HK CHP, April 21 '26): 3 new #human cases of #H9N2 virus in #China

 


{Excerpt}

(...)

Avian influenza A(H9N2)

-- Guangdong Province

1) A five-year-old boy with onset on February 23, 2026.

-- Jiangxi Province

2) A two-year-old boy with onset on March 20, 2026. 

-- Yunnan Province:

3) A two-year-old girl with onset on March 3, 2026. 

(...)

Source: 


Link: https://www.chp.gov.hk/files/pdf/2026_avian_influenza_report_vol22_wk16.pdf

____

Saturday, April 18, 2026

#Taiwan #CDC issued a #statement regarding journal research on transmission of viruses from farmed #shrimp in #China to #humans (Apr. 18 '26)

 


Recently, online discussions have focused on a study published in the international journal *Nature Microbiology*, which suggests that *Cryptant Dead Noda Virus* (CMNV), found in aquatic animals, may have the potential to spread across species to humans, potentially causing persistent high-tension viral anterior uveitis (POH-VAU). 

The Centers for Disease Control (CDC) stated that currently only China has reported suspected human cases of CMNV, distributed across 18 provinces with high aquaculture activity

Major international public health organizations such as the WHO, the US CDC, and the European Centre for Disease Prevention and Control (ECDC) have not reported any CMNV-related cases or listed it as an urgent threat. 

The CDC assesses the risk of domestic transmission as extremely low and will continue monitoring with agricultural authorities.

The CDC further explained that the study infers that human infection with CMNV may be related to handling or consuming raw seafood; however, further evidence is needed to confirm whether this virus has the ability to effectively infect human eye tissue. 

The Taiwan Centers for Disease Control (CDC) emphasizes that there have been no large-scale human outbreaks or community transmission events caused by CMNV globally at present, and there is no evidence of infection through the general consumption of cooked seafood

The CDC will continue to monitor relevant international outbreaks, develop human specimen testing technologies and methods, and establish relevant sampling and testing conditions for risk monitoring and early warning.

According to the monitoring of the Animal and Plant Health Inspection and Quarantine Bureau of the Ministry of Agriculture, there have never been any CMNV outbreaks in shrimp farms in Taiwan. 

The CDC's overall assessment is that the risk of domestic transmission is extremely low, but both agriculture and health authorities will continue to strengthen monitoring. 

CMNV has been listed as an emerging infectious disease by the World Organisation for Animal Health, and infection cases have been reported in shrimp farms in China and Thailand

The CDC urges travelers to China and Thailand to take special precautions against CMNV, including thoroughly cooking seafood, avoiding raw seafood for high-risk groups (such as those with chronic diseases), wearing gloves when handling raw seafood, avoiding direct contact with raw food if hands are open, and washing hands thoroughly with soap and water after handling to reduce the risk of infection by various pathogens.

Source: 


Link: https://www.cdc.gov.tw/Bulletin/Detail/JAKoFRedyjAVo_zmdBsCfQ?typeid=9

____

Friday, April 17, 2026

#USA, #Wastewater Data for Avian #Influenza #H5 (#CDC, April 17 '26)

 


{Excerpt}

(...)

Time Period: April 05, 2026 - April 11, 2026

-- A(H5) Detection6 site(s) (1.3%)

-- No Detection454 site(s) (98.7%)

-- No samples103 site(s)




(...)

Source: 


Link: https://www.cdc.gov/wastewater/emerging-viruses/h5.html

____

#UK, #England: #Antibiotics and MenB #vaccination to be offered to young people in #Dorset following 3 cases of invasive #meningococcal disease (UKHSA, Apr. 17 '26)

 


The UK Health Security Agency (UKHSA) is working with Dorset Council, the NHS and local partners following 3 confirmed cases of meningococcal infection (meningitis) in young people in Weymouth, Dorset.

The cases were confirmed between 20 March and 15 April. All have received treatment and are recovering well. Close contacts of the cases have already been offered antibiotics as a precaution.

Two of the cases attend Budmouth Academy and the other attends Wey Valley Academy. Further information about the signs and symptoms of meningitis has been shared with students and parents of both schools.

Around 300 to 400 cases of meningococcal disease are diagnosed in England every year. These 3 cases have been confirmed as Meningitis B (MenB) and are the same sub-strain type, but a different sub-strain to the one detected recently in Kent.

The 2 cases who attend Budmouth Academy are contacts of each other, but currently no confirmed epidemiological link has been made between these cases and the third individual who attends Wey Valley Academy. This may mean that this strain of MenB bacteria is transmitting more widely among young people in Weymouth. Due to this, and as an additional precautionary measure, antibiotics and MenB vaccination will now be offered to young people currently in school years 7 to 13 (or equivalent), or anyone not in full time education who would be in one of these year groups, who study in or live in the Weymouth, Portland and Chickerell areas of Dorset.

Dr Beth Smout, UKHSA Deputy Director said:

''We are working closely with partners to follow up and offer precautionary antibiotics to close contacts of the cases. However, meningococcal disease does not spread easily, and outbreaks like we have seen recently in Kent are rare. These cases are not linked to the Kent outbreak and it is important to be aware that this outbreak is not on the same scale as we saw in Kent in terms of speed of transmission or severity.

''However, it is possible that we will see further cases linked to these latest cases in Weymouth and we understand that there will be concern among students, staff, parents and the local community as we widen our offer of antibiotics and vaccination. I’d like to stress that this is an additional precaution, and that we’re following national guidelines to reduce the risk of the infection spreading. School pupils and staff should attend school as normal if they remain well.

UKHSA is now recommending a single dose of antibiotics and a meningitis B vaccine be offered to young people who live or go to school in the Weymouth area, as follows:

-- anyone who is a resident in Weymouth or Portland or Chickerell and is in current school years 7 to 13 (or equivalent), or anyone not in full time education who would be in one of these year groups

-- anyone who attends an educational setting in the Weymouth, Portland or Chickerell area and is in current school years 7 to 13 (or equivalent).

This will be offered in stages starting with Budmouth Academy and Wey Valley schools, as the cases attend these settings. Pupils that attend other schools and other eligible children in Weymouth who do not attend school will be invited after the weekend.

Young people under 16 should be accompanied by a parent or guardian who is able to provide consent at the time.

More information on the vaccination schedule will be provided in due course.

Dr Smout added:

''Meningococcal disease can progress rapidly, so it’s essential that everyone is alert to the signs and symptoms of meningococcal meningitis and septicaemia, which can include a fever, headache, rapid breathing, drowsiness, shivering, vomiting and cold hands and feet. Septicaemia can also cause a characteristic rash that does not fade when pressed against a glass. If the disease is suspected, you should seek immediate medical attention as the disease can progress rapidly.

''It’s also important for teenagers to ensure they take up the MenACWY vaccine routinely offered by the NHS – but also to be aware that this vaccine does not protect against Men B, which is why knowing the symptoms and seeking early treatment is so important.

Young people in school years 7 to 13 in Weymouth are strongly encouraged to take up the offer of antibiotics and MenB vaccination and we are grateful to all those involved in our investigations so far for assisting us.

UKHSA and Dorset Council have issued advice to staff, parents and carers at all educational settings in the area.

Anyone who becomes unwell with symptoms of meningitis and septicaemia should seek medical help urgently at the closest Accident and Emergency Department or by dialling 999. Early treatment can be lifesaving. If you’re not sure if your symptoms are serious, use NHS 111 online or call 111 for further advice.

Source: 


Link: https://www.gov.uk/government/news/antibiotics-and-menb-vaccination-to-be-offered-to-young-people-in-dorset

____

Tuesday, April 14, 2026

Avian #Influenza #Report - Reporting period: April 5 – 11, '26 (Wk 15) (HK CHP April 14, 2026): 2 new #human #H9N2 influenza cases in #China

 


{Excerpt}

(...)

-- Avian influenza A(H9N2)

- Guangdong Province

1) A three-year-old boy with onset on January 20, 2026. 

- Guangxi Zhuang Autonomous Region

2) A 63-year-old man with onset on February 5, 2026. 

(...)

Source: 


Link: https://www.chp.gov.hk/files/pdf/2026_avian_influenza_report_vol22_wk15.pdf

____

Friday, April 10, 2026

Avian #Influenza #H9N2 - #Italy (#WHO, D.O.N., April 10 2026)

 


Situation at a glance

-- On 21 March 2026, the National International Health Regulations (IHR) Focal Point for Italy notified the World Health Organization (WHO) of the identification of a human case of avian influenza A(H9) in an adult male returning from Senegal

- Next generation sequencing confirmed Influenza A(H9N2). 

- According to epidemiological investigations, the patient had no known history of exposure to poultry or any person with similar symptoms prior to the onset of symptoms. 

- Authorities in Italy have implemented a series of measures aimed at monitoring, preventing and controlling the situation. 

- According to the IHR (2005), a human infection caused by a novel influenza A virus subtype is an event that has the potential for high public health impact and must be notified to the WHO. 

- This is the first imported human case of avian Influenza A(H9N2) reported in the European Region

- Based on currently available information, WHO assesses the current risk to the general population posed by A(H9N2) viruses as low but continues to monitor these viruses and the situation globally.


Description of the situation

-- On 21 March 2026, the National IHR Focal Point for Italy notified WHO of the identification of a human case of avian influenza A(H9) in an adult male.

-- The patient had been in Senegal for more than six months and traveled to Italy in mid-March. Upon arrival, he visited the emergency department with a fever and a persistent cough.

-- On 16 March, a bronchoalveolar lavage specimen was collected, which showed a positive Mycobacterium tuberculosis result, as well as detection of un-subtypeable influenza A virus. The patient was placed in a negative-pressure isolation room with airborne precautions. He was treated with antitubercular medication and antiviral oseltamivir. By 9 April, his condition was stable and improving.

-- On 20 March, a regional reference laboratory identified the A(H9) subtype, and on 21 March, next-generation sequencing confirmed influenza A(H9N2). Initial genetic findings suggest the infection was likely acquired from an avian source linked to Senegal. Additional samples have been sent to Italy’s National Influenza Center, where further characterization confirmed virus subtype Influenza A(H9N2), with close genetic similarity to strains previously identified in poultry in Senegal.

-- No direct exposure to animals, wildlife or rural environments was identified. There was also no reported contact with symptomatic or confirmed human cases. Further epidemiological investigations on the source of exposure are ongoing.

-- Contacts identified in Senegal were asymptomatic. All identified and traced contacts in Italy have tested negative for influenza and completed the period of active monitoring for the onset of symptoms and the quarantine required by national guidelines. They also received oseltamivir as a preventive measure


Epidemiology

-- Animal influenza viruses normally circulate in animals but can also infect people. Infections in humans have primarily been acquired through direct contact with infected animals or through indirect contact with contaminated environments. Depending on the original host, influenza A viruses can be classified as avian influenza, swine influenza, or other types of animal influenza viruses.

-- Avian influenza virus infections in humans may cause diseases ranging from mild upper respiratory tract infection to more severe diseases and can be fatal. Conjunctivitis, gastrointestinal symptoms, encephalitis and encephalopathy have also been reported.

-- Laboratory tests are required to diagnose human infection with influenza. WHO periodically updates technical guidance protocols for the detection of zoonotic influenza using molecular methods. 

-- Human infections with influenza A(H9) viruses have been reported from countries in Africa and Asia, where these viruses are also detected in poultry. The majority of cases of human avian influenza A(H9N2) infection have been reported from China. This is the first imported human case of avian Influenza A(H9N2) virus infection reported in the European Region


Public health response

-- Contact tracing procedures have been initiated, and relevant authorities in Italy, as well as internationally (National IHR Focal Point for Senegal, WHO, and European Centre for Disease Prevention and Control (ECDC)) have been informed through IHR channels. Once avian influenza was suspected, the response moved quickly from hospital-level management to regional laboratory confirmation and national coordination. Additionally, the regional surveillance system was notified, integrated within the One Health avian influenza reporting framework.


WHO risk assessment

-- Most reported human cases of A(H9N2) virus infection have been linked to exposure to infected poultry or contaminated environments, with the majority of cases experiencing mild clinical illness. Sporadic human cases following exposure to infected birds or contaminated environments can be expected since the virus remains enzootic in poultry populations. Avian influenza A(H9N2) viruses have been detected in poultry and environmental samples collected at live bird markets in Senegal and authorities in the country reported a human case of infection with an A(H9N2) virus in 2020.

-- Current epidemiological and virological evidence indicates that none of the characterized influenza A(H9N2) viruses thus far have acquired the ability for sustained transmission among humans. Thus, the likelihood of sustained human-to-human spread is low at this time. Infected individuals traveling internationally from affected areas may be identified in another country during or after arrival. However, if this were to occur, further community-level spread is considered unlikely. The risk assessment would be revisited if and when further epidemiological and virological information becomes available.


WHO advice

-- This case does not change the current WHO recommendations on public health measures and surveillance of influenza.

-- The public should avoid contact with high-risk environments such as live animal markets/farms or surfaces that might be contaminated by poultry feces. Respiratory protection is highly recommended for those handling live or dead (including slaughtering) poultry in occupational or backyard-farming settings. Good hand hygiene, i.e. frequent washing of hands or the use of alcohol-based hand sanitizer is recommended. WHO does not recommend any specific additional measures for travelers.

-- Under Article 6 of the IHR, all human infections caused by a new subtype of influenza virus are notifiable. The case definition for notification of human influenza infection caused by a new subtype under the IHR is provided here. State Parties to the IHR are required to immediately notify WHO of any laboratory-confirmed case of a human infection caused by such an influenza A virus.

-- WHO advises against the application of any travel or trade restrictions based on the current information available on this event. 


Further information

-- WHO fact sheet on Influenza (avian and other zoonotic): https://www.who.int/news-room/fact-sheets/detail/influenza-(avian-and-other-zoonotic)

-- WHO Global influenza programme, human-animal interface: https://www.who.int/teams/global-influenza-programme/avian-influenza

-- WHO Monthly Risk Assessment Summary: Influenza at the human-animal interface: https://www.who.int/teams/global-influenza-programme/avian-influenza/monthly-risk-assessment-summary

-- Protocol to investigate non-seasonal influenza and other emerging acute respiratory diseases: https://www.who.int/publications-detail-redirect/WHO-WHE-IHM-GIP-2018.2

-- World Health Organization. Public health resource pack for countries experiencing outbreaks of influenza in animals: revised guidance: https://www.who.int/publications/i/item/9789240076884

-- Implementing the integrated sentinel surveillance of influenza and other respiratory viruses of epidemic and pandemic potential by the Global Influenza Surveillance and Response System: https://www.who.int/publications/i/item/9789240101432

-- Case definitions for the four diseases requiring notification in all circumstances under the International Health Regulations (2005): https://www.who.int/publications/m/item/case-definitions-for-the-four-diseases-requiring-notification-to-who-in-all-circumstances-under-the-ihr-(2005)

-- Mosaic Respiratory Surveillance Framework: https://www.who.int/initiatives/mosaic-respiratory-surveillance-framework/

-- Practical interim guidance to reduce the risk of infection in people exposed to avian influenza viruses: https://www.who.int/publications/i/item/B09116

-- Antigenic and molecular characterization of low pathogenic avian influenza A(H9N2) viruses in sub-Saharan Africa from 2017 through 2019: https://hal.inrae.fr/hal-03213105v1

-- Genetic and Molecular Characterization of Avian Influenza A(H9N2) Viruses from Live Bird Markets (LBM) in Senegal: https://doi.org/10.3390/v17010073

-- Genetic characterization of the first detected human case of low pathogenic avian influenza A/H9N2 in sub-Saharan Africa, Senegal: https://doi.org/10.1080/22221751.2020.1763858

-- ECDC. First human case of influenza A(H9N2) infection imported in the EU: https://www.ecdc.europa.eu/en/news-events/first-human-case-influenza-ah9n2-infection-imported-eu

-- Ministry of Health, Italy. Influenza A (H9N2) virus case identified in Lombardy. Routine surveillance and prevention procedures activated: https://www.salute.gov.it/new/it/comunicato-stampa/virus-influenzale-h9n2-identificato-caso-lombardia-attivate-le-ordinarie/

__

Citable reference: World Health Organization (10 April 2026). Disease Outbreak News: Avian Influenza A(H9N2) in Italy. Available at: https://www/who.int/emergencies/disease-outbreak-news/item/2026-DON597

Source: 

Link: https://www.who.int/emergencies/disease-outbreak-news/item/2026-DON597

____

#USA, #Wastewater Data for Avian #Influenza #H5 (#CDC, April 10 '26, summary)

 


{Excerpt}

(...)

Time Period: March 29, 2026 - April 04, 2026

-- A(H5) Detection7 site(s) (1.6%)

-- No Detection430 site(s) (98.4%)

-- No samples125 site(s)




(...)

Source: 


Link: https://www.cdc.gov/wastewater/emerging-viruses/h5.html

____

Wednesday, April 8, 2026

Avian #Influenza #Report - From March 29 to April 4, 2026 (Wk 14) (#HK PRC SAR CHP, April 8 '26): 1 #H5N1 case in #Cambodia, 1 #H7H7 case in #Taiwan



{Excerpts}

(...)

1) H5N1

-- Date of report: 31/03/2026 

-- CountryCambodia 

-- Province / Region: Oddar Meanchey province

-- District / City: Banteay Ampil district 

-- Sex: Male

-- Age: 3 

-- Condition at time of reporting: Hospitalised 

-- Subtype of virus  H5N1 

(...)

2) H7N7

-- Place of occurrence: Taiwan, China

-- No. of cases  (No. of deaths): 1(0)

-- Details:   

- Avian influenza A(H7N7): 

* Central Taiwan: A man in his 70s who works in a poultry farm with onset on March 20, 2026. 

* This is the first locally-acquired human case of avian influenza A(H7N7) reported in Taiwan, China. 

(...)

Source: 


Link: https://www.chp.gov.hk/files/pdf/2026_avian_influenza_report_vol22_wk14.pdf

____

Tuesday, April 7, 2026

#USA, DOH and #CDC Investigate Invasive Group A Streptococcal (#IGAS) Infections in West #Hawaii (April 7 '26)

 


HONOLULU — The HawaiÊ»i Department of Health (DOH) and HawaiÊ»i District Health Office are working with the Centers for Disease Control and Prevention (CDC) to investigate a report of high rates of a serious bacterial infection called invasive Group A Streptococcus (iGAS) in West HawaiÊ»i.

This investigation began after a local physician identified a higher-than-expected number of patients with iGAS over a period of several months and informed DOH. 

While DOH routinely monitors these infections, historically Hawaiʻi has had higher rates than the national average

This investigation will help determine whether the number of people with iGAS is increasing in West Hawaiʻi and better understand possible causes and risk factors of this infection.

The goals of this investigation are to confirm whether there is an increase in the number of people with iGAS in West Hawaiʻi, identify risk factors, evaluate disease reporting, and better understand how infections may be occurring in the community

Investigators will also compare local trends with other areas of the state and analyze laboratory data to identify any patterns among people with iGAS infections.

Group A Streptococcus bacteria are commonly found on the skin or in the throat and often do not cause an infection

When infections do occur, they are usually mild illnesses such as strep throat or skin infection. 

In rare cases, the bacteria can enter the bloodstream or other normally sterile parts of the body. This is called invasive Group A Streptococcus (iGAS), which can be serious. Early treatment with antibiotics is effective, especially when care is given promptly.

Some people are at higher risk for severe illness. These include older adults and individuals with chronic medical conditions such as heart, kidney, or respiratory disease and diabetes. People with weakened immune systems, those with open wounds or skin infections — and people experiencing homelessness or who inject drugs may also be at increased risk. 

In addition, recent viral infections such as influenza or chickenpox can increase one’s risk. The specific causes of the elevated iGAS illnesses in West HawaiÊ»i are not yet known, so DOH and CDC are investigating.

DOH encourages the public to take simple steps to reduce the risk of infection

- Keep cuts and wounds clean and covered until they heal and 

- wash hands regularly with soap and water. 

- Seek medical care if a wound becomes red, swollen, warm, or produces pus. 

- Anyone experiencing fever, severe pain, or rapidly worsening symptoms should seek medical attention immediately.

DOH and CDC are working closely with healthcare providers and community partners and will continue to provide updates as more information becomes available. At this time, the overall risk to the public is low; however, awareness and early treatment are important to prevent severe iGAS illness.

Source: 


Link: https://health.hawaii.gov/news/newsroom/doh-and-cdc-investigate-invasive-group-a-streptococcal-igas-infections-in-west-hawai%ca%bbi/

____

Saturday, April 4, 2026

#Chikungunya fever: #Brazil is intensifying its response to address health emergency in Dourados (MoH, April 4 '26)

 


{Edited}

The Brazilian government has intensified its response to the emergency situation in Dourados (MS), given the increase in cases of chikungunya, with the mobilization of an interministerial task force that integrates actions in health, assistance, civil defense, and logistical support in the territory. The emergency affects the population of the municipality, with a greater impact on indigenous communities.

As a reinforcement to the response already underway, the Federal Government has guaranteed more than R$ 3.1 million in emergency resources for the municipality. 

Of this total, R$ 1.3 million , authorized by the Ministry of Integration and Regional Development (MIDR) in a decree published this Thursday (2), will be allocated to relief and humanitarian assistance actions, such as direct support to the population and local response structures. 

Also this Thursday, the National Secretariat for Civil Protection and Defense approved a work plan worth R$ 974,100 for restoration actions, including urban cleaning, waste removal and disposal in a licensed sanitary landfill, with resources to be transferred directly to the municipality.

The Ministry of Health has already transferred R$ 855,300 to the municipality to cover the costs of surveillance, assistance, and control actions related to chikungunya in the region.

The federal response has been underway since mid-March, coordinated by the Ministry of Health, which mobilized the National Health System (SUS) Task Force , reinforced healthcare teams, and intensified vector surveillance and control actions across the territory. 

The operation includes actively searching for cases, conducting home visits, eliminating [mosquitoes] breeding sites, and expanding services to the population, with special attention to the most vulnerable areas, including indigenous territories.

The National Health System Task Force has 40 mobilized professionals , with 26 currently working directly, and has already carried out 1,288 clinical consultations , 81 transfers for medium and high complexity care, and 225 home visits . 

The teams operate both in indigenous territories and in the municipalities of Dourados and ItaporĂ£, supporting local management, together with the Mato Grosso do Sul State Health Secretariat, reorganizing care flows, expanding active case finding, and guaranteeing assistance, health education, and psychosocial care.

Fiocruz mobilized the shipment of pain medication, reinforcing its ability to meet local demand due to the epidemic.

To expand response capacity, the Ministry of Health authorized the emergency hiring of 50 Endemic Disease Control Agents (ACEs). Of these, 20 have already been trained and will enter the field this Friday (3), while another 30 will begin training to work from Monday (6).

In the field of vector control, actions were intensified with the mobilization of approximately 95 professionals , including Community Health Agents and Indigenous Sanitation Agents (AISAN). Between March 9 and 16, 4,319 properties were inspected , of which 2,173 received treatment , identifying 1,004 breeding sites of the Aedes aegypti mosquito , mainly in water storage containers, solid waste, and tires.

Actions were also taken to control the spread of insecticide using ultra-low volume (ULV) methods, including three cycles of vehicle-mounted ULV application and backpack spraying in 43 high-traffic areas, such as schools and health units. The volunteer effort to remove breeding sites mobilized approximately 100 people and resulted in the collection of four dump truckloads of waste.

Vector control will be reinforced with support from the Ministry of Defense. Currently, 40 Brazilian Army soldiers and five vehicles are already in the area , expanding the operational capacity of the mosquito control efforts.

The Ministry of Health also sent 1,000 Larvicide Dissemination Stations (LDSs). Of the first 300 units, 150 have already been installed in priority neighborhoods, with expansion planned for other regions of the municipality.

Through Funai (National Indian Foundation), actions are also underway to provide direct support to indigenous communities in Dourados, focusing on food security and access to water. 

The distribution of 6,000 food baskets is planned , in three stages between April and June, in coordination with the Ministry of Social Development (MDS), the National Supply Company (Conab), the Special Secretariat for Indigenous Health (Sesai), and Civil Defense. The expansion of the water supply system in the Jaguapiru and BororĂ³ villages has also been authorized to guarantee access to potable water and improve the sanitary conditions of the indigenous communities.


Epidemiological scenario

The most recent epidemiological surveillance data, referring to April 2nd, indicates that the region has registered 2,812 notifications of chikungunya, with 1,198 confirmed, 430 discarded, and 1,184 still under investigation. The highest concentration of cases is in indigenous villages, where 822 cases were confirmed—68.6% of the total confirmations in the region. 

So far, five deaths have been confirmed in Dourados, all among the indigenous population of the municipality.

To strengthen the coordination of actions, the Ministry of Health established a Situation Room in BrasĂ­lia on March 25th, with permanent meetings to monitor the situation and integrate decisions between technical teams and managers.

Within the indigenous territory, the work is carried out in a coordinated manner between the Ministries of Health, Indigenous Peoples, Integration and Regional Development, Defense, Social Development, Funai (National Indian Foundation), and the Special Indigenous Health District of Mato Grosso do Sul (DSEI-MS), which has 210 Indigenous Health Agents (AIS) and 150 Indigenous Sanitation Agents (Aisan), in addition to logistical support with 91 pickup trucks, 6 vans, and 1 truck.

The actions also include training for health professionals in the municipal and indigenous networks, aligning clinical protocols for diagnosis and proper management of the disease, as well as health education activities in schools and communities. There are also plans to send prevention messages via WhatsApp to more than 234,000 residents , in Portuguese and with translation into indigenous languages.

The response also includes improving the quality of care, with the implementation of the national chikungunya protocol and training of teams for early identification of severe cases and appropriate clinical management.

Source: 


Link: https://www.gov.br/saude/pt-br/assuntos/noticias/2026/abril/governo-do-brasil-intensifica-resposta-integrada-e-mobiliza-forca-tarefa-para-enfrentar-emergencia-sanitaria-em-dourados-ms-2

____

Friday, April 3, 2026

#USA, #Wastewater Data for Avian #Influenza #H5 (#CDC, April 3 '26)

 


{Excerpt}

(...)

Time Period: March 22, 2026 - March 28, 2026

-- H5 Detection8 site(s) (1.7%)

-- No Detection458 site(s) (98.3%)

-- No samples in last week105 site(s)




(...)

Source: 


Link: https://www.cdc.gov/nwss/rv/wwd-h5.html

____

#Taiwan, First locally acquired case of #H7N7 avian #influenza A virus has been released from isolation today (MoH, April 3 '26)

 


The Taiwan Centers for Disease Control (CDC) announced today (April 3) that the first case of local human infection with the H7 subtype of novel influenza A, which was detected recently, has been cured and discharged from isolation today after clinical treatment

The patient's condition has continued to improve and all tests have been negative. The patient will continue to be monitored until April 6.

The Taiwan Centers for Disease Control (CDC) stated that the sputum sample collected from the case on March 27th was genetically sequenced to identify the virus as H7N7, a low-pathogenic avian influenza virus (LPAI). 

No drug-resistant mutations were found, and the virus remains sensitive to antiviral drugs; the public need not panic. 

The CDC also today, in accordance with the International Health Regulations (IHR), notified the World Health Organization of this first locally acquired H7N7 influenza case through the IHR contact window.

The Taiwan Centers for Disease Control (CDC) explained that since 1959, more than 90 human cases of H7N7 have been reported globally, concentrated before 2003, mainly in Europe

Of these, only one case resulted in death, and the vast majority were mild cases of conjunctivitis. 

Subsequently, Italy reported three cases in 2013, also mild cases of conjunctivitis. 

No new human cases have been reported since 2013, but the virus continues to spread and evolve in birds. 

The genetic analysis of the first H7 case in Taiwan showed that it was significantly different from the H7 cases in European human cases 10-20 years ago, and most similar to the H7 cases detected in wild birds in Taiwan over the years. 

No mutations related to enhanced bird-to-human transmission were found, and it is judged to be an isolated event with manageable risks.

The Centers for Disease Control (CDC) reiterates its reminder that workers in the poultry and livestock industries should adhere to disease prevention guidelines, including wearing protective equipment and proper disinfection after handling. 

If respiratory or eye symptoms develop, seek medical attention immediately and inform the animal contact history. 

The public should also follow the "5 Dos and 6 Don'ts" principle to avoid contact with or purchase poultry and livestock products from unknown sources, jointly safeguarding public health and safety. 

More information can be found on the CDC website (https://www.cdc.gov.tw/) or by calling the disease prevention hotline 1922.

Source: 


Link: https://www.cdc.gov.tw/Bulletin/Detail/oWFPJ8DnGZKl-Ygm43iPQQ?typeid=9

____

My New Space

Most Popular Posts