Bird Flu > Bird Flu News > Bird flu kills a man in northern Vietnam, heron in Hong kong (AP via Yahoo! Singapore News)

Bird flu kills a man in northern Vietnam, heron in Hong kong (AP via Yahoo! Singapore News)
Health officials in Vietnam warned Thursday that bird flu could spread after the virus killed its 49th victim in the country while a dead gray heron found in Hong Kong tested positive for the virulent H5N1 strain of the disease.