Influenza A Virus, H7N9 Subtype

**Definition:** A subtype of INFLUENZA A VIRUS with the surface proteins hemagglutinin 7 and neuraminidase 9. This avian origin virus was first identified in humans in 2013.

**Tree numbers:** - B04.820.480.968.405.400.800

**Synonyms:** - Avian Influenza A(H7N9) Virus - H7N9 - H7N9 Bird Flu Virus - H7N9 Influenza Virus - H7N9 subtype - H7N9 Virus - Influenza A(H7N9) Virus