Avian Influenza A subtype (H3N8) was recently detected in a woman in China. The World Health Organization reported the death of a woman infected with Avian Influenza A (H3N8) on April 11, 2023, following hospitalization after the onset of illness. Various factors such as multiple underlying conditions, exposure to live poultry and a wild bird presence in the home appear to have contributed to the overall health of the individual in the confirmed case. This is only the third case of H3N8 infection ever recorded, all occurring in China, and the first recorded death. The N3N8 subtype is distinct from the H5N1 subtype currently circulating in bird populations.
What You Need to Know
- Avian influenza A (H3N8) viruses are commonly detected globally in animals and are the most common subtype found in birds.
- The two previously reported human infections were linked to exposures to contaminated environments and infected poultry.
- Avian influenza viruses continue to appear in poultry populations so occasional human cases are expected, especially in those with close contact to birds.
What You Can Do
Increased public health awareness of Avian influenza A is encouraged as it stresses the importance of minimizing the risk of exposure by avoiding high risk environments, utilizing proper hand hygiene practices, and using respiratory protection when Avian Influenza is suspected. When traveling to countries with known outbreaks, avoid visiting environments such as poultry farms, contact with animals in live animal markets, touching contaminated surfaces, and entering areas where animals are slaughtered.
Although the likelihood of spreading avian influenza viruses from person-to-person is low, these viruses continue to evolve which may increase transmissibility.
Maegan Traveler is an Education Specialist for Education and Institutional Preparedness for the SPECTRE Program.
References
https://www.who.int/emergencies/disease-outbreak-news/item/2023-DON456