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Hantaflow
New World hantavirus

Sin Nombre virus

Sin Nombre virus is the leading cause of hantavirus pulmonary syndrome in North America. Identified during the 1993 Four Corners outbreak, it remains the most common HPS-causing strain in the United States.

Profile

  • Short name: SNV
  • Family: New World
  • Reservoir: Deer mouse (Peromyscus maniculatus)
  • Primary region: United States, Canada, Mexico
  • Causes: Hantavirus Pulmonary Syndrome (HPS)
  • Case-fatality rate: ~36% (HPS)
  • Person-to-person transmission: Not documented
  • Identified: 1993

Key facts

  • Carried by the deer mouse (Peromyscus maniculatus), broadly distributed across North America.
  • Transmitted through aerosolized rodent excreta — urine, droppings, saliva.
  • No documented person-to-person transmission.
  • Causes Hantavirus Pulmonary Syndrome (HPS) with rapid respiratory deterioration.

Endemic in

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