The agency advised people to avoid contact with live or dead seabirds and called for vigilance to prevent transmission to "poultry or backyard birds."
Avian flu is lethal to birds, but does not pose a severe risk to humans, especially if poultry and poultry products such as eggs are cooked properly.
However, the World Health Organization warns infections are possible in humans "with direct or indirect contact with infected live or dead poultry."
