Scientists Begin Rodent Testing Mission in Mendoza
Argentina has widened its investigation into a deadly hantavirus outbreak by sending scientific teams to the western province of Mendoza. Health authorities are attempting to determine the source of the virus after several confirmed infections and deaths linked to a recent outbreak.
Researchers will trap and test rodents in areas believed to be connected to the spread of the disease. The effort forms part of a broader investigation aimed at identifying how the virus emerged and whether additional infections could occur.
International Experts Join the Investigation
The Argentine government confirmed that specialists from the United States Centers for Disease Control and Prevention (CDC) will participate in the field mission. Scientists are expected to collect samples from rodents and surrounding environments to determine whether infected animals are carrying the virus.
The investigation follows earlier testing operations conducted in Ushuaia, Argentina’s southernmost city, where authorities searched for clues related to the outbreak.
What is Hantavirus?
Hantavirus is a rare but potentially deadly disease primarily transmitted through contact with infected rodents, their saliva, urine, or droppings. In South America, the Andes strain of the virus is of particular concern because it has occasionally shown evidence of limited human-to-human transmission.
Symptoms often begin with fever, muscle pain, fatigue, headaches, and nausea. In severe cases, the disease can rapidly progress to serious respiratory complications requiring urgent medical care.
Cruise Ship Outbreak Raised Global Concerns
The investigation intensified after multiple hantavirus cases were linked to passengers aboard the expedition cruise vessel MV Hondius. Several passengers developed symptoms during or shortly after the voyage, prompting international health authorities to launch contact-tracing efforts.
Three deaths associated with the outbreak were reported, raising concerns among health officials worldwide. Authorities are examining travel histories, possible exposure locations, and environmental factors that may have contributed to the infections.
Scientists Focus on Tracing the Original Source
Health experts believe identifying the original infection source is critical for preventing future outbreaks. Researchers are analyzing data from confirmed cases and comparing it with environmental samples collected across different regions.
Laboratory results from rodent testing are expected to provide important clues about where and how the virus entered the affected population.
Public Health Risk Remains Low
Despite international attention surrounding the outbreak, the World Health Organization (WHO) has stated that the overall risk to the general public remains low. Officials continue to monitor the situation while emphasizing preventive measures, especially in areas where rodent populations are common.
Authorities have advised residents and travelers to avoid contact with rodents, maintain clean living spaces, and seek medical attention if symptoms appear after possible exposure.
Ongoing Monitoring
Argentina’s Health Ministry has pledged to continue surveillance efforts and work closely with international health agencies. Findings from the investigation may help improve future outbreak detection and strengthen disease-control strategies across the region.

