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A Wild Whooper Swan in the Hokkaido Region.
A Wild Large-Billed Crow in the Akita Region.
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Source: World Animal Health Organization, https://wahis.woah.org/#/in-review/7940
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Media Monitoring for Signals about Emerging Threats
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A Wild Whooper Swan in the Hokkaido Region.
A Wild Large-Billed Crow in the Akita Region.
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Source: World Animal Health Organization, https://wahis.woah.org/#/in-review/7940
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Abstract
Background
Nipah virus (NiV) is a priority zoonotic pathogen causing high-fatality outbreaks. Early NiV outbreaks in Malaysia and Singapore had limited transmission beyond spillover events. However, since 2001, NiV outbreaks with person-to-person transmission have occurred in Bangladesh and India, driven by the NiV-Bangladesh genotype and NiV-India genotype. Our study aims to estimate the reproduction number, offspring dispersion, and serial interval governing NiV transmission in Bangladesh and India during 2001–2026.
Methods
We conducted a systematic review of NiV outbreak investigations in Bangladesh and India, searching PubMed, Embase, Web of Science, and grey literature through 28 February 2026. Case-level offspring counts from 27 sources (323 cases across 67 outbreaks) were used as input to a hierarchical Bayesian negative binomial offspring distribution model. The serial interval was estimated by parametric distribution fitting to 137 transmission pairs. We conducted country-specific analysis and performed sensitivity analyses to evaluate the robustness of estimates.
Results
Pooling across 67 outbreaks, we estimated a median reproduction number of 0.43 (95% CrI: 0.26–0.75), an offspring dispersion parameter of 0.04 (0.03–0.06), and a serial interval of 13.3 days (95% CI: 12.8–13.8). Country-specific median reproduction numbers were 0.47 (0.22–0.98) for India and 0.35 (0.19–0.63) for Bangladesh, and dispersion parameters were 0.03 (0.02–0.06) and 0.05 (0.03–0.09), respectively, indicating marked overdispersion in both settings.
Conclusion
NiV transmission is self-limiting on average and highly overdispersed, suggesting that a disproportionate share of onward transmission arises from a small number of cases. This epidemiological profile supports targeted containment measures, including contact tracing and quarantine, for effective NiV outbreak control.
Source: Plos Neglected Tropical Diseases, https://doi.org/10.1371/journal.pntd.0014876
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Abstract
We challenged ferrets previously infected with influenza A(H1N1)pdm09 virus with H5N1 or H5N5 clade 2.3.4.4b viruses to assess cross-protection. Results show that previous A(H1N1)pdm09 virus immunity conferred partial protection against both viruses, with slightly reduced protection against H5N5 compared with H5N1, potentially reflecting the absence of cross-reactive N5 neuraminidase antibodies.
Source: Emerging Infectious Diseases Journal, https://doi.org/10.3201/eid3212.261032
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
{Summary}
{Click on Image to Enlarge}
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Event description
The Bundibugyo virus disease (BVD) outbreak in the Democratic Republic of the Congo continues at a high, sustained level of transmission, with no sign of decline: close to 390 confirmed cases were added during the reporting period and the national seven-day average has stayed between 65 and 67 cases per day.
Nord-Kivu now contributes almost as many cases as Ituri and accounts for the entire increase observed over the last 21 days, while contact follow-up fell to its lowest level in weeks at the end of the period.
The importation events in Kenya and Nigeria remain contained: no new case has been reported in Kenya since 19 October, six of the seven surviving patients have been discharged and the last contacts will complete monitoring on 11 November, while no secondary case has been identified in Nigeria, where contact monitoring is expected to end on 13 November.
In the Democratic Republic of the Congo, insecurity in Beni health zone in North Kivu and Bafwasende in Tshopo, health-worker strikes in Bas-Uélé and Tshopo and the continued suspension of response activities in Bafwasende constrain surveillance and response operations.
Democratic Republic of the Congo
As of 7 November 2026, the BVD outbreak in the Democratic Republic of the Congo has affected 67 health zones and 247 health areas across eight provinces; no new health zone was affected during the reporting period.
Since External Situation Report #24, an additional 388 confirmed cases and 197 confirmed deaths have been reported, bringing the cumulative total to 10 920 confirmed cases, including 5 323 confirmed deaths [crude case fatality ratio (CFR) 48.7%].
Transmission remains highly heterogeneous across affected areas. Ituri continues to account for the largest proportion of cumulative confirmed cases (69.7%), although its relative contribution is declining, while Nord-Kivu (24.7% of cumulative cases; CFR 54.8%) accounted for 46.1% of the cases reported since the previous report, almost as many as Ituri (47.2%).
Transmission persists at lower levels in Haut-Uélé (4.9% of new cases), Tshopo and Nord-Ubangi.
National daily incidence rose steadily from May to its highest levels in late July and mid-August, declined through late September and has fluctuated at a high plateau since early October.
The seven-day moving average ranged between 65 and 67 confirmed cases per day during the reporting period (64.7 on 7 November, compared with 67.0 on 1 November and a late-October high of 76), still well below the mid-August peak of 94.
Provincial trends continue to diverge. Ituri continues its slow decline from the late-July peak (seven-day average of 29 cases per day on 7 November, down from 31 on 1 November and 38 on 19 October), while Nord-Kivu has risen to 31 cases per day (up from 30 on 1 November and 26 on 19 October) and exceeded Ituri on several days of the period. Haut-Uélé remains stable at three to four cases per day, Tshopo reports sporadic cases (last case on 5 November) and Nord- Ubangi reported three further cases in Yakoma and Wapinda. Bas-Uélé, Sud-Kivu and Sud-Ubangi have reported no case in the last 21 days (Figures 1 and 2).
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Kenya
Since the previous report, Kenya has reported no new confirmed case of BVD. The cumulative total remains nine confirmed cases, including two deaths (CFR 22.2%): the imported index case, who died on 5 October, and a 65-year-old family member who died on 23 October.
All eight secondary cases (four family members and four hospital staff) belong to a single known chain of transmission, were epidemiologically linked to the index case and were already under quarantine when they developed symptoms; no community spread has been detected.
The last confirmed case was reported on 19 October 2026.
On 6 November, day 32 since the first case was confirmed, the Ministry of Health announced that a sixth patient had recovered and was being discharged after testing negative and meeting all discharge criteria.; only one patient remains under care and continues to be closely monitored.
The 42-day countdown to the end of the outbreak will start once this last patient has recovered and been discharged.
Of the nine confirmed cases, seven were male and two were female, with ages ranging from 24 to 65 years. Designated isolation facilities have 211 isolation beds (scalable to 241).
A total of 135 contacts have been listed since the index case was confirmed, comprising 46 airport staff, 45 hospital staff, 26 passengers, 14 relatives and four flight crew members. Of these, eight (5.9%) tested positive for BVD during quarantine (four relatives and four hospital staff), one of whom has died.
Of the remaining 118 contacts, 66 had completed their 21 days of monitoring and returned home by 6 November and the remaining 52 are expected to complete quarantine by 11 November 2026.
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Nigeria
Nigeria has reported a single confirmed case of BVD, announced by the Federal Ministry of Health on 20 October 2026 in the Federal Capital Territory, Abuja.
The case, a 42-year-old woman, arrived in Abuja from Uganda via Addis Ababa on 3 October, developed symptoms on 7 October and was admitted to a private health facility on 11 October; the Nigeria Centre for Disease Control and Prevention (NCDC) was notified on 19 October and the National Reference Laboratory confirmed the infection on 20 October. The patient was clinically stable and, at the request of her country and with clearance from the Nigerian authorities, was medically evacuated to Switzerland on 26 October 2026, where she remains in isolation and under medical care in Geneva.
No additional confirmed case has been reported. As of 5 November 2026, a cumulative 62 contacts linked to the index case had been identified, categorized and followed up; none had developed symptoms, no new contact had been identified, and seven contacts had completed the mandatory 21-day follow- up and left the quarantine facility, with the remaining contacts due to complete follow-up on a staggered basis between 31 October and 13 November 2026.
Exposure remains confined to a single epidemiological cluster directly linked to the index case. The 12-day interval between symptom onset and notification, eight days of which were spent in private-facility care, remains the main concern for undetected exposures.
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Situation interpretation
The BVD outbreak remains at a critical juncture. In the Democratic Republic of the Congo, transmission is not declining: close to 390 confirmed cases and 200 deaths were added in one week, the national seven-day average has held between 65 and 76 cases per day for five weeks, and the epicentre continues to shift towards Nord-Kivu, which accounted for the entire 21-day increase in cases (513 to 661) and deaths (250 to 322) and now reports as many cases as Ituri each day. Beni, Mutwanga, Oicha, Mabalako and Kalunguta are the health zones where transmission is intensifying most. At the same time, the performance of the response weakened at the end of the period: contact follow-up fell to 69.8% on 7 November, safe burial completion dropped to 85%, refusals increased, and only half of investigated suspected cases are isolated within 24 hours. Insecurity in Beni, the suspension of activities in Bafwasende and health- worker strikes in Bas-Uélé and Tshopo further increase the risk of undetected transmission.
The absence of new cases in Kenya since 19 October, the discharge of six of the seven surviving patients and the imminent end of contact monitoring in Kenya (11 November) and Nigeria (13 November) indicate that the exported chains have been contained, although surveillance must be sustained until the end-of-outbreak criteria are met. Priorities should focus on reinforcing response capacity in Nord-Kivu, particularly in Beni, Mutwanga, Oicha and Mabalako, restoring contact follow-up and safe burial.
Source: World Health Organization, Regional Office for Africa, https://www.afro.who.int/countries/kenya/publication/bundibugyo-virus-disease-outbreak-democratic-republic-congo-kenya-nigeria-weekly-external-situation
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
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A poultry farm (geese (20), ducks (40), chicken (30)) in the Brandenburg Region.
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Source: World Animal Health Organization, https://wahis.woah.org/#/in-review/7972
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
{Click on Image to Enlarge}
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By Martin Mecnarowski (http://www.photomecan.eu/) - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=12814916
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A Wild Eurasian Eagle-Owl in the Länsi- ja Sisä-Suomen aluehallintovirasto Region.
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Source: World Animal Health Organization, https://wahis.woah.org/#/in-review/7970
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
{Excerpt}
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Avian influenza A(H9N2):
° Guangxi Zhuang Autonomous Region:
§ A nine-year-old girl with onset on October 13, 2026.
° Liaoning Province:
§ A seven-year-old boy with onset on September 20, 2026.
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Source: Centre for Health Protection, Hong Kong PRC SAR, https://www.chp.gov.hk/files/pdf/2026_avian_influenza_report_vol22_wk45.pdf
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Abstract
Influenza A virus (IAV) pandemics can arise when animal-derived and human-adapted IAVs exchange genome segments; however, whether contemporary clade 2.3.4.4b H5N1 viruses can generate viable reassortants with human IAVs is unclear. Here, we tested the reassortment potential of two clade 2.3.4.4b H5N1 viruses with human-adapted H1N1 and H3N2 IAVs using a biosafe reassortment system. Across multiple coinfection conditions, we genotyped 2,698 plaque-purified viral clones and recovered 20 reassortants (0.74%). Polymerase assays identified human IAV subunits, particularly H1N1 PA or H3N2 PB2, that increased H5N1 polymerase activity. Thus, contemporary clade 2.3.4.4b H5N1 viruses can reassort with human IAVs, but factors beyond polymerase compatibility may limit their recovery.
Source: Proceedings of the National Academy of Sciences of the United States of America, https://doi.org/10.1073/pnas.2631654123
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
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The CDC explained that in week 44 (November 1-7), there were 91,879 outpatient and emergency room visits for influenza-like illnesses, a 6.4% decrease from the previous week.
However, last week (November 3-9), there were still 103 new cases of severe influenza complications and 38 deaths.
This season (October 1, 2026 - September 30, 2027) has seen a cumulative total of 645 severe cases and 124 deaths.
The majority of severe cases are among those aged 65 and above (69.6%) and those with a history of chronic illness (85.1%).
97.1% of those affected have not received the seasonal influenza vaccine.
Laboratory monitoring data shows that H1N1 influenza viruses are currently predominantly circulating in the community, accounting for 94.7%.
According to the Taiwan Centers for Disease Control (CDC), although the COVID-19 epidemic in Taiwan ended its peak in mid-October and continues to decline, last week (November 3-9) saw 2 new severe cases and 1 death.
50% of severe cases have not received the seasonal COVID-19 vaccine.
This season (October 1, 2026 - September 30, 2027) saw a cumulative total of 77 severe cases, including 14 deaths.
The majority of severe cases were among those aged 65 and above (61.0%) and those with a history of chronic illnesses (84.4%). 98.7% of these cases were not vaccinated against COVID-19 this season.
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Source: Centers for Disease Control and Prevention, Taiwan, https://www.cdc.gov.tw/Bulletin/Detail/HHbAdjZ5sQg8nHVyP5QXSQ?typeid=9
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
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Event data
As of 4pm AEST, 9 November 2026, Australia has 738 confirmed events of H5 bird flu in wildlife.
§ 10 in Western Australia (WA)
§ 342 in South Australia (SA)
§ 81 in New South Wales (NSW)
§ 2 in Queensland (QLD)
§ 249 in Victoria (VIC)
§ 53 in Tasmania (TAS)^
§ 1 in Other Territories#
{^} Includes events on Macquarie Island
{#} Jervis Bay Territory (Commonwealth jurisdiction)
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Source: Australian Department of Agriculture, https://www.agriculture.gov.au/campaigns/birdflu/latest-data#h1_bird_flu
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
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{England}
Poultry premises 67,000 duck meat farm with birds of 35 weeks of age.
Samples taken were positive for HPAI H5N1.
Birds presented clinical signs prior to testing.
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Source: World Animal Health Organization, https://wahis.woah.org/#/in-review/7964
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Summary
Influenza A/H5Nx viruses continue to diversify and undergo gene reassortment as they infect avian and mammalian hosts worldwide. The severity of human infections varies substantially between different H5 clades and neuraminidase (NA) reassortants, creating unpredictable pandemic risk. Existing H5 vaccines, typically based on a single hemagglutinin (HA) strain, cannot keep pace with this natural variation. To address this problem, we computationally engineer HA, NA, and M2 antigens representing the global antigenic space of circulating H5Nx viruses, prioritizing N1 and N6 subtypes associated with the highest threat in humans. The resulting digitally immune-optimized mRNA vaccine, DVX-panH5Nx, elicits broad HA neutralization and NA inhibition across divergent clades in mice and ferrets. Compared to WHO candidate vaccine viruses (CVVs), DVX-panH5Nx confers superior protection against antigenically distinct H5N1 challenges spanning two decades of viral evolution, demonstrating that computationally designed multivalent antigen vaccines can overcome natural influenza diversification and provide a scalable strategy for pre-pandemic preparedness.
Source: Cell Reports Medicine Journal, https://doi.org/10.1016/j.xcrm.2026.103131
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Abstract
Background
Increased transmission of avian influenza from animals to humans has elevated the risk of an H5 pandemic.
Methods
This phase 2, randomized, observer-blind, multi-center trial assessed the immunogenicity and safety of homologous priming with an MF59-adjuvanted, cell-based H5N8 A/Astrakhan/3212/2020 clade 2.3.4.4b vaccine (aH5N8c). We enrolled adults age ≥18 years, equally stratified into 18–64 (including a poultry-worker subset) and ≥65 year cohorts. Primary and secondary outcomes were homologous antibody responses against H5N8 measured in all participants by hemagglutination inhibition (HI) and in a subset by microneutralization (MN) assays on Days 1, 22, and 43. Solicited adverse events (AEs) were monitored for 7 days post-vaccination, with unsolicited AEs tracked throughout Day 43.
Results
239 participants were vaccinated (18–64 years, n = 121; ≥65 years, n = 118). At Day 43 (21 days post second aH5N8c dose), geometric mean fold increases (GMFI) were 13.7 for the 18–64 cohort and 10.2 for the ≥65 cohort. HI seroconversion rates were 75.8% (95% CI 66.1–83.8%) for the 18–64 cohort and 71.0% (61.1–79.6%) for the ≥65 cohort. HI titers ≥1:40 were achieved in 75.8% (66.1–83.8%) and 73.0% (63.2–81.4%) of participants, respectively. MN seroconversion rates were 80.6% (68.6–89.6%) and 70.0% (56.8–81.2%), while MN titers ≥1:40 were 83.9% (72.3–92.0%) and 86.7% (75.4–94.1%), respectively. No notable differences in immune responses by poultry worker status were observed. Most solicited AEs were mild or moderate, resolving within 3 days. Unsolicited AEs were reported by 16.7% participants by Day 43.
Conclusion
These data support the use of the MF59-adjuvanted, cell-based monovalent H5N8 vaccine as a public health intervention against H5 influenza.
Source: Vaccine Journal, https://doi.org/10.1016/j.vaccine.2026.129279
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
{Click on Image to Enlarge}
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Public Domain.
Source: WikiArt, https://www.wikiart.org/en/diego-velazquez/price-baltasar-carlos-1632
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Abstract
The ongoing emergence of SARS-CoV-2 variants in an increasingly immune-experienced population is largely enabled by the plasticity of the Spike protein, which lies at the frontline of host immune pressure. Here, we investigated how extensive remodeling of the N-terminal domain (NTD) in Spike influences its antigenic properties. Using BA.2.87.1, a variant heavily mutated in this domain, we found that even large deletions do not substantially disrupt overall Spike structure or pseudovirus infectivity. However, our structural and binding analyses revealed that the NTD exhibits increased flexibility and that interaction with a heme–metabolite, known to facilitate the exposure of an immunodominant epitope, is lost. These conformational effects, coupled with 33 NTD mutations, compromised the ability of human convalescent antibodies to engage this domain, contributing to their reduced neutralizing capacity. Consequently, BA.2.87.1-like variants may escape recognition by the preexisting NTD-targeting antibodies, potentially reducing protection. Together, our results highlight the intrinsic adaptability of the Spike beyond the receptor-binding domain, with implications for immune escape during viral evolution.
Source: Proceedings of the National Academy of Sciences of the United States of America, https://doi.org/10.1073/pnas.2608185123
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Abstract
Influenza D virus (IDV) is an emerging pathogen associated with bovine respiratory disease and has potential for zoonotic transmission. Although nonstructural protein 1 (NS1) is a major virulence factor in influenza A and B viruses, the structure and function of IDV NS1 remain poorly defined. Here, we determined crystal structures of the IDV NS1 N-terminal RNA-binding domain (NTD) and C-terminal effector domain (CTD). The NTD retains the conserved homodimeric six-helix fold, whereas the CTD adopts a distinct architecture containing a novel Zn²⁺-binding site. IDV NS1 CTD preferentially binds single-stranded RNA, and mutagenesis identified lysine and arginine residues critical for this activity. Single-residue substitutions disrupting either the Zn²⁺-binding site or RNA-binding interface prevented recovery of infectious recombinant IDV. These findings reveal distinct structural and functional features of IDV NS1 and establish the importance of CTD integrity for viral replication. Conservation of key CTD residues in influenza C virus NS1 suggests shared structural features that distinguish influenza C and D virus NS1 proteins from their influenza A and B counterparts.
Competing Interest Statement
The authors have declared no competing interest.
Funder Information Declared
Welch Foundation, https://ror.org/00np6vq88, C-1565
Source: BioRxIV, https://doi.org/10.64898/2026.10.29.760789
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Abstract
Andes virus (ANDV) causes hantavirus pulmonary syndrome (HPS), with rare outbreaks involving person-to-person transmission. A human ANDV isolate from one such outbreak and a rodent isolate from the same region differ in lethality in Syrian golden hamsters. Genomic analysis revealed 25 nonsynonymous substitutions, including one leading to a T641I change in the human ANDV glycoprotein precursor near its cleavage site. Although the isolates differed in growth kinetics, strand-specific RT-qPCR did not support major differences in viral RNA synthesis, whereas virion release was delayed in the case of the human isolate. In human cell expression systems, a single I641T substitution in the human ANDV glycoprotein resulted in decreased Golgi retention and faster release of virion-like particles relative to wild-type glycoprotein. Since ANDV egress takes place at the Golgi, the T641I change present in the human ANDV isolate may represent a human adaptive mutation influencing glycoprotein trafficking and virus particle release.
Source: Science Advances Journal, https://doi.org/10.1126/sciadv.aek2522
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
{Click on Image to Enlarge}
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By Milepost98 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=90062190
Source: Wikipedia, https://en.wikipedia.org/wiki/NIR_80_Class
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Ministry of Health REPUBLIC OF KENYA | OFFICE OF THE DIRECTOR-GENERAL FOR HEALTH | PRESS RELEASE
DAY 32: SIX RECOVERIES AND EIGHTEEN DAYS WITHOUT A NEW CASE AS KENYA NEARS THE FINISH LINE
Nairobi, 6 November 2026
Today marks Day 32 since Kenya confirmed its first imported case of Ebola (Bundibugyo Virus Disease) on 6th October 2026.
The Ministry of Health is pleased to report that the measures put in place are working, and the country is firmly on the path to ending this outbreak.
A sixth (6th) male patient has recovered and is being discharged today, after testing negative and meeting all the criteria for discharge.
Only one (1) patient remains under care and continues to receive treatment and close monitoring.
No new case has been recorded for eighteen (18) days, since 19th October 2026.
The total number of confirmed cases remains nine (9), all from one known chain of transmission, and there has been no spread in the community.
Sixty-six (66) contacts have completed their 21 days of monitoring and returned home, and the remaining fifty-two (52) are expected to complete their quarantine by 11th November 2026.
These results did not happen by chance. Kenya followed the proven steps that stop Ebola:
° find every case early,
° isolate and treat the sick,
° trace and monitor everyone they came into contact with,
° protect health workers, and
° bury the dead safely and with dignity.
° Every person who fell ill after the first case was already under quarantine, which meant the virus had nowhere to go.
The outbreak will end in a clear, internationally agreed way. When the last patient leaves the treatment centre free of the virus, Kenya will begin a 42- day countdown, twice the longest time it takes for the illness to appear. If no new case is recorded in those 42 days, the outbreak will be declared over. Until that day, we must not let down our guard.
The Ministry sincerely thanks everyone who has made this progress possible:
° our doctors, nurses, laboratory, surveillance and burial teams, who worked at great personal risk;
° Community Health Promoters, Public Health Officers and county governments;
° the Kenyatta National Hospital and The Nairobi Hospital; the security agencies; religious and
° community leaders; and
° the media, for sharing accurate information.
We are grateful to the patients and their families, and to the contacts who stayed in quarantine for the sake of their neighbors and the entire country. We also thank our partners, including WHO, Africa CDC, UNICEF, IGAD and friendly governments, for standing with Kenya.
Staying free of Ebola, and of any other outbreak, is everyone's responsibility.
We ask every Kenyan to:
° know the signs (fever, weakness, muscle pain, vomiting, diarrhea or unexplained bleeding) and seek care early;
° report any sick person or unexplained death in the community;
° avoid touching the blood or body fluids of a sick person, or the body of anyone who has died of an unexplained illness;
° wash hands regularly with soap and water;
° avoid handling sick or dead wild animals or their meat; and
° welcome recovered patients and released contacts without stigma.
Ebola is still active in the region, and outbreaks in one country can quickly reach another. Kenya will keep screening travelers at all twenty-six (26) points of entry, where to date more than 760,000 travelers have been screened, and will keep its emergency operations centers and rapid response teams on alert in every county.
Travelers should truthfully complete the electronic traveler surveillance form on the UHAI Chatbot before arrival, declare any symptoms honestly, and report any illness within 21 days of arrival.
Health workers should ask every patient with fever about travel and contact history and always keep up infection prevention and control measures.
We will continue to work with our neighbors, the East African Community and Africa CDC, because no country is safe until the whole region is safe.
Kenya remains open, with no restrictions on travel, trade or public gatherings. To report a suspected case or seek information, call 719 free of charge or use the Jali WhatsApp chatbot on 0700 719 719.
We are close to the finish line. Let us stay alert, report early and keep working together until Kenya is declared Ebola-free and stays that way.
Dr. Patrick Amoth, CBS | DIRECTOR-GENERAL FOR HEALTH
Source: Facebook Page of Kenya's Ministry of Health, https://www.facebook.com/MinstryofHealthKE
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I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.
Ann Intern Med
I am an Italian blogger, active since 2005 with main focus on emerging infectious diseases such as avian influenza, SARS, antibiotics resistance, and many other global Health issues. Other fields of interest are: climate change, global warming, geological and biological sciences. My activity consists mainly in collection and analysis of news, public services updates, confronting sources and making decision about what are the 'signals' of an impending crisis (an outbreak, for example). When a signal is detected, I follow traces during the entire course of an event. I started in 2005 my blog ''A TIME'S MEMORY'', now with more than 40,000 posts and 3 millions of web interactions. Subsequently I added an Italian Language blog, then discontinued because of very low traffic and interest. I contributed for seven years to a public forum (FluTrackers.com) in the midst of the Ebola epidemic in West Africa in 2014, I left the site to continue alone my data tracking job.