Phnom Penh, May 28 -- An 11-year-old boy from western Cambodia's Kampong Speu province had died of H5N1 human avian influenza, becoming the fourth human death from the virus so far this year, the Ministry of Health said in a press statement released on Wednesday.

"A laboratory result from the Pasteur Institute of Cambodia showed on May 27, 2025, that the boy was positive for the H5N1 virus," the statement said.

The ill-fated boy lived in Samraong Tong district's Srey Sampoung village.

"According to queries, chickens and ducks near the patient's house had gotten sick and died subsequently a week before the boy fell ill," the statement said.

Health authorities are looking into the source of the infection and examining any suspected ca...