Indonesian activists wear chicken costumes during demonstration to inform people that properly cooked chicken is safe from bird flu

Indonesian health officials have confirmed the country's fourth death from bird flu, bringing to 63 the number of people across Asia who have died from the virus since 2003.

Authorities Friday said recent tests indicate an Indonesian woman who died last week in a Jakarta hospital was infected with the H5N1 strain of avian flu.

Indonesia's health ministry says it is investigating whether a neighbor of the victim is also infected.

The bird flu strain has killed at least 43 people in Vietnam since 2003, at least 12 in Thailand and four in Cambodia.

Health experts fear the virus could infect millions of people worldwide if it changes into a form that can be spread easily by human-to-human contact.