Orf virus

**Definition:** The type species of PARAPOXVIRUS which causes a skin infection in natural hosts, usually young sheep. Humans may contract local skin lesions by contact. The virus apparently persists in soil.

**Tree numbers:** - B04.280.650.160.670.600

**Synonyms:** - Sheep Contagious Ecthyma Virus - Contagious Ecthyma Virus of Sheep - Sheep Contagious Pustular Dermatitis Virus - Contagious Pustular Dermatitis Virus of Sheep - Ecthyma contagiosum Virus - Contagious pustular dermatitis virus - Contagious ecthyma virus