Avian #Influenza #Report, May 10 - 16 '26 (Wk 20) (HK CHP, May 19, 2026): One new #human case with #H9N2 virus

 

{Excerpt}

-- Avian influenza A(H9N2): 

    ° Sichuan Province: 

        - 1) A three-year-old girl with onset on April 25, 2026. 

(...)

Source: 

Link: https://www.chp.gov.hk/files/pdf/2026_avian_influenza_report_vol22_wk20.pdf

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#China reported four additional #human pediatric cases of #infection with avian #influenza #H9N2 virus (HK CHP, September 9 '25)

{Summary, excerpts}

-- Avian influenza A(H9N2): 

- Anhui Province: 

1) A two-year-old boy with onset on August 5, 2025. 

- Chongqing Municipality: 

2) A six-year-old boy with onset on July 30, 2025. 

- Hunan Province

3) A two-year-old boy with onset on August 21, 2025. 

- Sichuan Province: 

4) A one-year-old boy with onset on July 28, 2025. 

(...)

Source: Centre for Health Protection, Hong Kong PRC SAR, https://www.chp.gov.hk/files/pdf/2025_avian_influenza_report_vol21_wk36.pdf

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#Investigation of #human #infection with #H5N6 avian #influenza cases in #Sichuan from 2014-24: a retrospective study

Abstract

Objective: 

The objective is to examine the epidemiology and clinical features of human cases infected with H5N6 avian influenza in Sichuan Province from 2014 to 2024, and to offer guidance for the prevention and management of human infections with H5N6 avian influenza.

Methods: 

Epidemiological survey reports of H5N6 avian influenza cases in Sichuan Province from 2014 to 2024 were compiled, and the epidemiological context and characteristics of 16 human cases infected with H5N6 avian influenza in the province were summarized and analyzed using descriptive epidemiological methods.

Results: 

From 2014, when the initial human case of H5N6 infection was documented in Sichuan Province, to 2024, there have been 16 human cases of H5N6 avian influenza in the region, resulting in 12 fatalities and a case fatality rate of 75%. The instances were predominantly located in the Chengdu Plain, eastern Sichuan, and southern Sichuan.

Conclusion: 

Human instances of H5N6 avian influenza in Sichuan Province exhibit no discernible periodicity, and entail significant fatality rates. It is essential to enhance the early diagnosis and treatment of avian influenza cases in medical facilities, prioritize farmers with preexisting conditions who have been in contact with deceased poultry, conduct influenza virus testing promptly, and administer antiviral medications at the earliest opportunity. Simultaneously, we must effectively engage in public awareness and education for the populace, manage poultry scientifically, and prevent direct contact with deceased poultries.

Source: Frontiers in Public Health, https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1603158/full

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#China reported three new #human cases of #infection with #H9N2 #influenza and one case of #H10N3 virus (#HK CHP, June 24 '25)

{Excerpt}

Epi-Week 25 2025

Avian influenza A(H9N2): 

- Henan Province: 

-- 1) A 52-year-old woman with onset on May 10, 2025. 

- Hunan Province: 

-- 2) A 72-year-old woman with onset on May 14, 2025. 

- Sichuan Province: 

--3) A six-year-old boy with onset on May 14, 2025.

Avian influenza A(H10N3): 

- Shaanxi Province: 

-- 1) A 70-year-old woman with onset on April 21, 2025. 

(...)

Source: Centre for Health Protection, Hong Kong PRC SAR, https://www.chp.gov.hk/files/pdf/2025_avian_influenza_report_vol21_wk25.pdf

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