An Indonesian toddler who died this week has tested positive for bird flu after initial results were inconclusive, a Health Ministry official said on Thursday.
The boy's 13-year-old sister died last week after being infected with the H5N1 avian flu virus, according to local tests. Both cases still need to be confirmed by outside laboratories recognised by the World Health Organisation (WHO).
Their father was is hospital with suspected bird flu, said Hariadi Wibisono, the ministry's director of control of animal-borne diseases.
"For the boy in Indramayu, local tests show he died from bird flu," Wibisono told Reuters.
The boy and his sister are Indonesia's fifth cluster of cases, where people living in close proximity have fallen ill.
There has been no evidence of human-to-human transmission in their deaths and dead chickens were found in the neighbourhood around Indramayu, in West Java province, officials have said. Indramayu is 175 km east of Jakarta.