According to the WHO, the woman who passed away in March most likely caught the virus at a live poultry market, and there is little chance that it will spread further.
The first human death from the H3N8 avian influenza strain occurred in a 56-year-old woman in southern China after she tested positive.
Despite being "one of the most frequently found" influenza subtype in birds, H3N8 had not previously been identified in humans until two cases surfaced in April and May of the previous year.
WHO reported that the woman, who had a history of illness including cancer, had been hospitalized with severe pneumonia after becoming ill in February.
The case was detected through the severe acute respiratory infection (SARI) surveillance system.
No close contacts of the case developed an infection or symptoms of illness at the time of reporting,” WHO said in its statement on Monday
The H3N8 virus is less dangerous for both wild birds and domestic poultry than H5N1, and is known to have been circulating since 2002 after first emerging in North American waterfowl.