An eight-year-old Indonesian boy has died of bird flu.

Health officials there say the child's neighbors kept chickens and they are investigating to see if those birds are infected.

The death toll from the disease is now 97 in Indonesia, which has suffered more bird flu fatalities than any other country.

Officials in Ukraine say there is an outbreak of the deadly H5N1 bird flu virus on the Crimean peninsula. More than 150 chickens were found dead at a farm in the village of Rivne. Authorities have sealed off the town.

In eastern India, health workers are battling an outbreak of the disease in West Bengal province and have been told to kill 400,000 chickens. Despite the risk of infection, local poultry owners continue to handle the birds, and have been dumping dead chickens into ponds, further risking the spread of the disease.

The World Health Organization (WHO) says more than 200 people have died from the bird flu virus since its discovery in Asia in 2003. Researchers fear the virus could mutate and become transmittable between humans.

Indonesia's resort island of Bali will play host to the Sixth International Bird Flu Summit in March. Scientists, emergency responders and poultry industry leaders will meet to discuss the situation.