Hantavirus in Paraguay: The current situation
Read original atoutbreaknewstoday.substack.com
Chaco, ParaguayConfidence 85%3 affectedToday
Paraguay confirmed 3 hantavirus cases in 2026, with two in Boquerón and one in Presidente Hayes departments. The Western Region, or Chaco, is a known rodent transmission area, with Callomys laucha as the primary reservoir.
Species mentioned
- humans
- Callomys laucha
Source articles
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- PrimaryHantavirus in Paraguay: The current situation
outbreaknewstoday.substack.com · 2026-06-01
Paraguay has confirmed 3 hantavirus cases in 2026, all affecting men. Two of these cases originated in the Boquerón department, and one in the Presidente Hayes department. Between 2020 and 2025, Paraguay reported 110 hantavirus cases with a 14% case fatality rate, with 73% of cases from Boquerón. The Western Region, or Chaco, is recognized as an area of confirmed rodent transmission, with the house mouse (Callomys laucha) identified as the primary reservoir. Transmission to humans primarily occurs through the inhalation of contaminated aerosols from rodent excretions.
Reminder
This report is an aggregated summary of public information for surveillance and awareness purposes only. It is not medical advice. For symptoms, exposure, or clinical decisions, contact a qualified clinician or your local public-health authority.