Argentina Hantavirus Cases Nearly Double
Argentina has reported a sharp rise in hantavirus infections, with cases nearly doubling over the past year amid growing concern over climate-linked changes in rodent populations. The increase comes as global attention remains focused on a separate cruise ship outbreak connected to travel from South America.
Argentina Hantavirus Cases Rise Sharply
Health data from Argentina shows more than 100 hantavirus cases have been reported since June 2025, along with dozens of deaths. The rise has worried public health officials because the virus can cause severe respiratory illness and has a high fatality risk in serious cases.
Climate Change Linked To Rodent Spread
Experts say warmer temperatures, rainfall changes and shifting ecosystems may be helping rodent populations expand in some regions. Hantavirus is usually spread when people come into contact with urine, droppings or saliva from infected rodents.
Andes Hantavirus Raises Concern
Argentina is one of the countries where the Andes strain of hantavirus is found. Unlike most hantaviruses, the Andes strain can rarely spread between humans through close contact, which makes monitoring and contact tracing especially important during outbreaks.
Cruise Ship Outbreak Adds Global Attention
The rise in Argentina’s cases has gained wider attention after a hantavirus outbreak linked to a cruise ship that departed from Argentina. Health officials have stressed that hantavirus does not spread like Covid-19 or influenza, but targeted public health measures remain necessary.
