NewsDesk  @infectiousdiseasenews

In a follow-up to the number of H9N2 avian influenza cases reported in China in 2021, Hong Kong health officials reported an additional case this past week in a 5-year-old boy from Anhui Province.

Image/Robert Herriman

The patient had onset of disease on November 13, 2021.

To date, 24 cases of avian influenza A(H9N2) have been reported to WHO from China in 2021.

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In most human cases of H9N2 avian flu, the associated disease symptoms have been mild and there has been no evidence of human-to-human transmission. Influenza A(H9N2) viruses are enzootic in poultry populations in parts of Africa, Asia and the Middle East.

Most human cases are exposed to the A(H9N2) virus through contact with infected poultry or contaminated environments. Human infection tends to result in mild clinical illness.