Endemic strains in this region
- Sin Nombre virus — US Four Corners (deer mouse reservoir, Peromyscus maniculatus)
- Andes virus — Patagonian corridor (Argentina, Chile); rare person-to-person transmission documented
- Araraquara virus — Brazilian cerrado (Necromys lasiurus reservoir)
- Choclo virus — Panama; lower fatality strain
Reporting & case patterns
HPS in the Americas runs a few hundred cases per year, dominated by Argentina, Chile, USA (Four Corners) and Brazil. Case fatality is high — CDC reports ~38% in the US. Andes virus outbreaks in Patagonia produce most international media attention.
Regional prevention notes
Same baseline as elsewhere: seal entry points, ventilate before cleaning, wet droppings before removal, never sweep or vacuum. In endemic Andes regions, occupational risk for park rangers, foresters and seasonal cabin cleaners is highest.
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