Hong Kong officials report closely monitoring a human case of avian influenza A(H5N6) in the Mainland.
The case involves a 49-year-old man living in Qingyuan, Guangdong, who had contact with live domestic poultry before the onset of symptoms. He developed symptoms on December 17, 2022. He was admitted for treatment on December 21, 2022, and was in serious condition.
From 2014 to date, 83 human cases of avian influenza A(H5N6) have been reported by Mainland health authorities.
Avian influenza is caused by those influenza viruses that mainly affect birds and poultry, such as chickens or ducks. Clinical presentation of avian influenza in humans may range from flu-like symptoms (e.g. fever, cough, sore throat, muscle aches) to severe respiratory illness (e.g. chest infection). Eye infection (conjunctivitis) and gastrointestinal symptoms (e.g. nausea, vomiting and diarrhea) have also been reported. The incubation period ranges from 7 to 10 days. The more virulent forms can result in respiratory failure, multi-organ failure and even death.
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