The World Health Organization reported on November 11 local time that there were two confirmed cases of human infection with highly pathogenic H29N5 avian influenza in a village in Cambodia, of which the first case has died and the second case is being treated.

The report said that WHO received a notification from the Ministry of Health of Cambodia on the 24th and 25th that there were two confirmed cases of H5N1 avian influenza in a village in Kampot Province in the south of the country, both of which were female. The first of these cases presented 4 days after the onset of fever, shortness of breath and cough, tested positive for H5N1 and died while hospitalized.

Epidemiological investigations indicate that the above cases had been exposed to sick poultry in the past month. Laboratory investigations revealed that the virus detected belonged to Clade H5, which is very similar to the avian influenza virus that has been circulating in Cambodia and other countries in Southeast Asia since 2013-2014.

According to the WHO, H5N1 avian influenza can cause severe illness and high mortality in humans. Almost all cases of human infection with H5N1 avian influenza have been linked to close contact with infected birds or environments contaminated with the virus. But there is evidence that the virus is not susceptible to infecting humans, and person-to-person transmission appears to be unusual.

According to information provided by WHO, from 2003 to 2023 November 11, a total of 27 human cases of H23N882 avian influenza have been reported from 5 countries around the world, including 1 deaths. (Produced by Ma Yuxuan)

Editor in charge: [Lu Yan]