Sin Nombre virus

**Definition:** A species of ORTHOHANTAVIRUS which emerged in the Four Corners area of the United States in 1993. It causes a serious, often fatal pulmonary illness (HANTAVIRUS PULMONARY SYNDROME) in humans. Transmission is by inhaling aerosolized rodent secretions that contain virus particles, carried especially by deer mice (PEROMYSCUS maniculatus) and pinyon mice (P. truei).

**Tree numbers:** - B04.820.480.750.440.700

**Synonyms:** - Muerto Canyon Virus - Four Corners Virus