A mutant form of the H7N9 flu virus that is resistant to frontline drugs is just as contagious as its non-resistant counterpart, according to a lab test reported on Tuesday.
Hong Kong reported its second human case of H7N9 bird flu just days after the first, raising fears that the virus is spreading beyond mainland China.
A 29-year-old man has died from bird flu in Cambodia and a toddler is critically ill with the virus after carrying sick and dead poultry from a market, health authorities said Thursday.
An Indonesian woman living near the capital Jakarta has died of bird flu, the health ministry said, the latest death from H5N1 in the country hardest hit by the virus.
A 31-year-old Indonesian woman has died of bird flu, bringing the death toll to 163 in the country hardest-hit by the virus, the Health Ministry said Monday.