Bird flu has killed more than 1,000 chickens at two farms on the outskirts of Hanoi, the country's animal health authority said today. Health workers slaughtered scores of chickens at the farms in Dong Anh district after tests confirmed that the H5N1 virus had killed a total of 1,150 birds, Reuters quoted the Animal Health Department as saying in its daily report. "The Hanoi animal health department has coordinated with the local authority to destroy the remaining poultry, disinfect the outbreak area and closely monitor poultry and humans," the report said. Vietnam has had no human cases of bird flu since November 2005, but the virus, which first arrived in late 2003, returned to poultry in the south late last year. More infections were detected in ducks in the southern province of Vinh Long and in chickens in the northern provinces of Hai Duong and Ha Tay in the past three weeks.
