China has reported another human H5N6 avian influenza case on the Mainland, according to the Centre for Health Protection (CHP) of the Department of Health in Hong Kong.
The case involves a 51-year-old female living in Nanchang in Jiangxi Province, who had exposure to live domestic poultry before onset. She developed symptoms on February 20 and was admitted for treatment on February 23. She is in critical condition.
From 2014 to date, 74 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.