Hantavirus in Paraguay: The current situation
Read original atoutbreaknewstoday.substack.com
Chaco, ParaguayConfidence 85%3 affectedJun 1, 2026
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.
- ReferenceHantavirus in Paraguay: The current situation - Outbreak News Today
outbreaknewstoday.com · 2026-06-02
Paraguay has confirmed three hantavirus cases in 2026, all in men. Two cases were reported from Boquerón and one from Presidente Hayes. The Western Region, or Chaco, is considered an area of confirmed rodent transmission, with the house mouse (Callomys laucha) identified as the primary reservoir. Most cases affect young adult males involved in rural and wild activities.
- ReferenceHantavirus in Paraguay: The current situation
outbreaknewstoday.com · 2026-06-02
Paraguay has reported 3 confirmed hantavirus cases in 2026, all in men, with two from Boquerón and one from Presidente Hayes departments. The Western Region, or Chaco, is considered an area of confirmed rodent transmission. Between 2020 and 2025, 110 cases were reported with a 14% case fatality rate. The primary reservoir is the house mouse (Callomys laucha), and transmission is mainly through inhalation of contaminated aerosols.
- ReferenceHantavirus in Paraguay: The current situation
vertexaisearch.cloud.google.com · 2026-06-02
As of May 10, 2026, three cases of hantavirus have been confirmed in Paraguay this year, all in men. Two cases are from Boquerón department and one from Presidente Hayes department. The Western Region (Chaco) is an area of confirmed rodent transmission, with the house mouse (Callomys laucha) identified as the primary reservoir.
- ReferenceHantavirus in Paraguay: The current situation
outbreaknewstoday.com · 2026-06-02
Paraguay has confirmed 3 hantavirus cases in 2026, all in men, with two originating from the department of Boquerón and one from Presidente Hayes. Between 2020 and 2025, 110 cases were reported in the country, with 73% from Boquerón and a cumulative case fatality rate of 14%. The Western Region, or Chaco, is considered an area of confirmed rodent transmission.
- ReferenceHantavirus in Paraguay: The current situation
vertexaisearch.cloud.google.com · 2026-06-03
Paraguay has confirmed 3 hantavirus cases in 2026, all in men. Two cases are from Boquerón department and one from Presidente Hayes department. The Western Region (Chaco) is identified as an area of confirmed rodent transmission, with the house mouse (Callomys laucha) being the primary reservoir for Laguna Negra virus.
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.