H9N2 avian flu infects two children — Precision vaccinations

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According to a statement from the Macao SAR Health Department translated today, two new cases of human H9N2 avian influenza infection have been confirmed in Hunan and Guizhou provinces.

According to the report released on June 2, 2022, one of the patients is a 5-year-old boy who lives in Yueyang City, Hunan Province.

His condition is mild and there was live poultry market activity prior to the onset of illness.

The other patient is a 2-year-old boy who lives in Bijie City, Guizhou Province. His condition is also mild and he has a history of activity in the live poultry market prior to the onset of illness.

A new post by Avian Flu Diary indicates that four previous cases of H9N2 were confirmed earlier in 2022.

Influenza A viruses are part of the Orthomyxoviridae family and contain a segmented negative-sense RNA genome coding for ten core proteins and a variable number of accessory proteins, according to a study published in the journal Vaccines.

Avian influenza viruses can be classified into two groups based on their pathogenicity in chickens and molecular markers in their hemagglutinin (HA) protein.

Influenza A viruses are generally characterized by their combinations of surface proteins, HA and neuraminidase, giving rise to many different subtypes designated, for example, H1N1, H5N6 or H9N2.

H9N2 avian influenza viruses have spread worldwide in poultry over the past two decades and pose a real threat to the global poultry industry and humans due to their high rates of zoonotic infection and of their pandemic potential.

The natural hosts of influenza viruses are wild waterfowl and seabirds.

In the United States, an outbreak of the Eurasian H5N1 strain began in wild birds in January 2022.

Since then it has affected poultry/birds in 36 states and resulted in the loss of approximately 38 million birds as of June 1, 2022.

Additional avian flu news is posted at PrecisionVaccinations.com/Aviain.

Note(s): The annual influenza vaccine does not protect humans against avian influenza.

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