Orthomyxoviridae

**Definition:** A family of RNA viruses causing INFLUENZA and other respiratory diseases. Orthomyxoviridae includes INFLUENZAVIRUS A; INFLUENZAVIRUS B; INFLUENZAVIRUS C; INFLUENZAVIRUS D; ISAVIRUS; and THOGOTOVIRUS.

**Tree numbers:** - B04.820.480.968

**Synonyms:** - Influenza Viruses - Orthomyxoviruses