Hantavirus cases nearly doubled in Argentina in the past year

Species mentioned

• Humans
• Rodents

Source articles

Every claim above is derived from publicly available reporting. Click through to read the original at the publisher.

• Primary
  Hantavirus cases nearly doubled in Argentina in the past year↗

  vertexaisearch.cloud.google.com · 2026-06-01

  Hantavirus cases in Argentina have almost doubled in the past year, with 101 confirmed cases and 32 deaths recorded since June 2025, marking the highest number of infections since 2018. This represents a significant increase compared to 57 cases in the same period last season and a higher lethality rate. The rise in cases is attributed to climate change and habitat destruction, which expand the virus's range and allow infected rodents to migrate into new regions. Four geographic regions of Argentina are historically high-risk areas for contagion: Northwest (Salta, Jujuy, Tucumán), Northeast (

• Reference
  Hantavirus Cases Nearly Doubled in Argentina as Experts Blame Climate Change for Surge↗

  vertexaisearch.cloud.google.com · 2026-06-01

  Hantavirus cases in Argentina have almost doubled in the past year, reaching 101 confirmed cases and 32 deaths since June 2025, marking the highest infection rate since 2018. Experts attribute this surge to climate change and environmental degradation, which have altered ecosystems and allowed the long-tailed mouse, the primary virus carrier, to expand its habitat. The province of Buenos Aires reported the highest concentration of infections. This increase coincides with the international investigation into the MV Hondius cruise ship outbreak, with authorities tracing the movements of a Dutch

• Reference
  Hantavirus cases nearly doubled in Argentina in the past year. Experts say climate change is to blame↗

  theguardian.com · 2026-06-01

  Argentina has seen a significant increase in hantavirus infections, with 101 confirmed cases and 32 deaths reported since June 2025, nearly double the previous year's figures. This surge, which excludes cases from the MV Hondius cruise ship, is largely attributed to climate change and habitat destruction. Cases have been reported across various provinces including Buenos Aires, Salta, Santa Fe, Chubut, Río Negro, Entre Ríos, Jujuy, Neuquén, and Misiones.

• Reference
  Outbreak Updates - NaTHNaC (Hantavirus in Argentina)↗

  travelhealthpro.org.uk · 2026-06-02

  As of April 25, 2026, Argentina reported 101 confirmed hantavirus infections and 32 deaths during the 2025/2026 season. Cases were distributed across several provinces including Buenos Aires, Salta, Santa Fe, Chubut, Río Negro, Entre Ríos, and Jujuy. This represents a significant increase compared to previous years, with a mortality rate nearly tripling.

• Reference
  Hantavirus cases nearly doubled in Argentina in the past year. Experts say climate change is to blame↗

  vertexaisearch.cloud.google.com · 2026-06-02

  As of May 9, 2026, Argentina reported 101 confirmed hantavirus cases and 32 deaths for the current season (since June 2025), nearly double the previous year. Experts attribute the rise to climate change and habitat destruction. The central region, particularly Buenos Aires province, has seen the most cases. This surge is separate from the MV Hondius cruise ship outbreak, though authorities are investigating potential links.

• Reference
  Hantavirus cases nearly doubled in Argentina in the past year. Experts say climate change is to blame - CTV News↗

  guelph.ctvnews.ca · 2026-05-09

  Argentina is experiencing a significant surge in hantavirus cases, with 101 infections reported since June 2025, which is double the caseload from the previous year. The country has also recorded 32 deaths in the current season, indicating a high lethality rate. Experts attribute this rise to climate change and habitat destruction, which are expanding the range of infected rodents. The virus is endemic in several regions across Argentina, including the Northwest (Salta, Jujuy, Tucumán), Northeast (Misiones, Formosa, Chaco), Center (Buenos Aires, Santa Fe, Entre Ríos), and South (Neuquén, Río

• Reference
  Hantavirus cases nearly doubled in Argentina in the past year. Experts say climate change is to blame↗

  vertexaisearch.cloud.google.com · 2026-06-02

  Hantavirus cases in Argentina have almost doubled in the past year, with 101 confirmed cases and 32 deaths since June 2025, marking the highest number of infections since 2018. This surge is attributed to climate change and habitat destruction, which increase human exposure to infected rodents. Authorities are also tracing the movements of a couple who died after an outbreak on the MV Hondius cruise ship, which departed from Ushuaia. The Andes strain, capable of human-to-human transmission, is linked to the outbreak. Four geographic regions of Argentina are historically high-risk areas for c

• Reference
  Hantavirus Cases Nearly Doubled in Argentina as Experts Blame Climate Change for Surge↗

  nbcpalmsprings.com · 2026-05-10

  Hantavirus cases in Argentina have almost doubled in the past year, reaching 101 confirmed cases and 32 deaths in the current season, the highest since 2018. The surge is attributed to environmental degradation and climate change, which have expanded the habitat of the long-tailed mouse. The province of Buenos Aires has reported the highest concentration of cases.

• Reference
  Request for information (RFI): Hantavirus cases reported on a cruise ship from Argentina; three deaths and multiple cases - BEACON↗

  beacon.org · 2026-06-02

  In Argentina, 86 confirmed hantavirus cases were reported in 2025, with 28 deaths (33% CFR). The central region (Buenos Aires, Santa Fe, and Entre Ríos) was formally placed in outbreak status ("situación de brote") during the 2025–2026 season, leading to updated surveillance and response protocols.

• Reference
  Hantavirus is on the rise in Argentina, where a stricken cruise ship began its journey↗

  vertexaisearch.cloud.google.com · 2026-06-03

  Argentina has experienced a significant surge in hantavirus infections, with 101 cases recorded since June 2025, nearly double the previous year's figures. The mortality rate has almost tripled to approximately one-third of cases. This increase is attributed to warming temperatures and extreme weather patterns, which are expanding the virus's range and leading infected rodents into previously unaffected areas. The central region, including Buenos Aires, Santa Fe, and Entre Ríos, has been formally declared an outbreak area.