Local laboratory examination has showed another Indonesian, a 14-year-old boy, died of bird flu, a health official said on Saturday.

"The local test shows he is positively infected," Nyoman Kandun, director of the Animal Disease and Health Control Department under the Health Ministry, told Xinhua.

The victim's blood samples had been sent to the World Health Organization (WHO) affiliated laboratory in Hong Kong for further test, said the director.

The boy, who died on Wednesday in a hospital in the capital, once had contact with dead chickens, he said.

According to the WHO, 39 out of 52 contracted people have died in Indonesia, Kandun said.

Experts feared that the highly pathogenic H5N1 virus could mutate in a certain form that could transmit from human to human and kill millions of people.

The avian influenza has killed at least 128 people worldwide since it began ravaging Asian poultry farms in late 2003.

Source: Xinhua