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BR · Americas

Hantavirus in Brazil.

Brazil reports approximately 80–150 confirmed HPS cases annually, with the highest incidence in southern and central-western states — especially Mato Grosso, Paraná, and Rio Grande do Sul.

HPSJuquitiba (with Araraquara and Castelo dos Sonhos regionally)CFR 30–45%
Strain
Juquitiba
Syndrome
HPS
CFR
30–45%

Brazil reports approximately 80–150 confirmed HPS cases annually, with the highest incidence in southern and central-western states — especially Mato Grosso, Paraná, and Rio Grande do Sul. The dominant strain varies by region: Juquitiba virus in the south, Araraquara virus in the southeast cerrado, and Castelo dos Sonhos virus in the Amazonian fringe. Sugar cane and grain harvesting are the highest-risk occupations; rodent populations cycle with the soybean harvest. Ministério da Saúde publishes monthly bulletins.

DOMINANT STRAIN
Juquitiba (with Araraquara and Castelo dos Sonhos regionally)
SYNDROME
HPS
CASE FATALITY
30–45%
RODENT RESERVOIR
Various Sigmodontinae rodents, especially Necromys lasiurus and Oligoryzomys nigripes.

Active and recent clusters

  • Brazil · agricultural belt — 110 cases, 45 deaths (CFR 41%) · Annual pattern; PAHO 2025 alert + Brazilian Ministério da Saúde. Brazil reports approximately 80–150 confirmed HPS cases annually, with the highest incidence in southern and central-western states (Mato Grosso, Paraná, Rio Grande do Sul). Dominant strains vary by region.

Authoritative sources

Frequently asked

Is hantavirus a problem in Brazil?

Yes. Brazil is part of the Americas hantavirus surveillance footprint, with the Juquitiba (with Araraquara and Castelo dos Sonhos regionally) strain causing HPS and case fatality typically 30–45%.

What rodent carries hantavirus in Brazil?

Various Sigmodontinae rodents, especially Necromys lasiurus and Oligoryzomys nigripes.

Who tracks hantavirus cases in Brazil?

Brazil Ministério da Saúde; PAHO Brazil.

Related

Disclaimer. Country surveillance figures are floor estimates and reflect what national authorities publish. Always confirm with the cited sources.