文摘
ass=""h3"">Summary
The first human case of avian influenza type A(H5N1) occured in a 3-year-old child who died from respiratory failure in May 1997, in Hong Kong, even though human cells are known not to have receptors for vian influenza viruses. By January 6, 1998, 16 confirmed and 3 suspected cases had been identified in Hong Kong. Initial antigenic and genetic analyses suggest multiple introductions in humans from poultry sources. At this time, epidemiological studies indicate that the virus is not being efficiently transmitted among humans. However a pandemic of avian influenza remain possible and global surveillance for influenza viruses is essential.
