Orthoreovirus, Mammalian

**Definition:** A species of ORTHOREOVIRUS infecting mammals (other than baboons). There are four serotypes. In humans they are generally benign but may sometimes cause upper respiratory tract illness or enteritis in infants and children. MAMMALIAN ORTHOREOVIRUS 3 is a very pathogenic virus in laboratory rodents.

**Tree numbers:** - B04.820.223.719.590.550

**Synonyms:** - Mammalian Orthoreovirus