Chinese health officials have reported a new outbreak of bird flu among more than 2,000 chickens and geese in the eastern province of Anhui. It is the second such reported mass outbreak in China in a week.
Also Tuesday, Indonesian health officials reported a fourth person in Bogor, West Java has died from the virus.
In France, Germany and Portugal, health officials say dozens of wild birds found dead are being tested. The virus recently has been confirmed in birds in Russia, Romania and Turkey.
French officials announced plans to bring free-range birds indoors in regions near wetlands to reduce exposure to migrating birds. News reports say Vietnam is considering banning the sale of birds in open-air markets in urban areas.
Meanwhile, world health officials have gathered in Ottawa, Canada to discuss efforts to thwart a possible global pandemic. And in Brussels, the European Commission is expected to announce a global ban on imports of live birds into Europe.