Highly pathogenic avian influenza is a major threat to the poultry industry.
Tips
usage
Parse the chain: 高 (high) + 致病性 (pathogenicity) + 禽 (poultry) + 流感 (flu). H5N1 and H7N9 are the classic HPAI strains; Chinese health officials distinguish 高致病性 from 低致病性 (LPAI) based on how quickly chickens die in lab tests.
history
The 1997 Hong Kong H5N1 outbreak — handled by then-Hong-Kong Director of Health 陈冯富珍 — was the first HPAI jump to humans and shaped every pandemic response framework since.
