PRO/AH/EDR> Avian influenza (50): Mexico, poultry, HPAI H7N3

Avian Influenza — Mexico
A new outbreak of highly pathogenic avian influenza (HPAI) has been reported in Mexico.
The H7N3 strain of the flu was discovered at a commercial layers farm in Sayula, Jalisco. In total, of the 151 000 birds susceptible, 15 cases were reported.

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[Avian influenza viruses are divided by subtypes, based on 2 proteins found in the viruses: a hemagglutinin, or “H” protein, and a neuraminidase, or “N” protein. There are 16 H types and 9 N types, yielding a