Outbreaks of the H5N1 bird flu virus have occurred at the Vuon Xoai Zoo near Ho Chi Minh City and the My Quynh Safari Park in neighboring Long An Province. Zoo officials told Reuters the animals likely fell ill after eating infected chicken meat. Vietnam's health ministry said two samples taken from the dead tiger tested positive for bird flu and authorities were tracking down the source of the chickens to determine the cause
credit : ufabet