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Ebola Virus explained


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Hong Kong health officials investigate case of influenza A (H9N2)

Hong Kong's Centre for Health Protection (CHP) of the Department of Health is investigating a case of influenza A (H9N2) infection - a mild form of avian influenza - involving a 35-month-old girl.

A spokesman for CHP said today (December 23) the girl, living in Sha Tin, developed symptoms of cough, fever, runny nose since late November. She was admitted to the Prince of Wales Hospital and was discharged on December 11. She has now recovered.

Influenza A (H9N2) was detected in the patient's respiratory specimen.

Influenza A (H9) is an avian influenza virus which has been isolated from duck and chicken for many years. Infection in humans is rare, and appears to present as a mild disease.

This is the seventh time that H9 viruses was found in humans in Hong Kong. Five females and a male were confirmed to have suffered from H9 infection in 1999, 2003, 2007, 2008 and 2009.

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