News:Indian scientists have detected the country’s first case of infection with a rare variant of the virus called A(H9N2) that causes avian influenza or bird flu. Facts: About A(H9N2) Virus: H9N2 is a subtype of influenza A virus that causes human influenza as well as bird flu. The subtype was isolated for the first time… Continue reading Explained: What is H9N2, which has infected an Indian child?