Update: Human Infection with Avian Influenza A (H5N1) Virus

Update: Human Infection with Avian Influenza A (H5N1) Virus: "Avian influenza A (H5N1) viruses usually affect wild birds but have infected and caused serious disease among poultry, such as chickens. Human infections with H5N1 viruses are rare, but have also occurred in several countries since 2003. For a current list of countries reporting outbreaks of H5N1 infection among poultry and other birds and a list of countries reporting laboratory-confirmed human infections with H5N1 viruses, see the Centers for Disease Control and Prevention (CDC) website,"