Nikhil Prasad Fact checked by:Thailand Medical News Team May 13, 2026 29 minutes ago
Medical News: Health officials in the United States are investigating a possible new hantavirus infection in Illinois that has raised fresh concerns about the dangers linked to rodent exposure inside homes. The suspected case, detected in Winnebago County, is currently being examined by the Illinois Department of Public Health and the U.S. Centers for Disease Control and Prevention. Authorities stressed that the infection is not connected to the recent Andes hantavirus outbreak associated with the MV Hondius cruise ship.
Possible Illinois hantavirus infection linked to rodent droppings raises renewed health concerns across the United States
Possible Exposure Linked to Cleaning Rodent Infested Property
According to state health officials, the Illinois resident is believed to have contracted the virus while cleaning a property contaminated with rodent droppings. Experts say the virus can become airborne when dried urine, saliva, or feces from infected rodents are disturbed during sweeping or cleaning activities.
Infectious disease specialist Dr. Alfredo Mena Lora from Saint Anthony Hospital explained that such infections typically occur when virus particles are aerosolized and inhaled by individuals cleaning enclosed or poorly ventilated areas where rats or mice had previously nested.
The infected resident reportedly experienced only mild symptoms and did not require hospitalization. Officials confirmed the individual is recovering well.
U.S. CDC Conducting Additional Confirmation Tests
The CDC is now carrying out advanced laboratory testing to confirm whether the case is truly positive for
hantavirus. Health authorities noted that commercial antibody tests alone are not considered definitive for diagnosis. The confirmation process may take up to 10 days.
Sandra Martell, public health administrator for the Winnebago County Health Department, stated that the patient had direct exposure to rodent droppings and displayed symptoms consistent with hantavirus infection.
Importantly, officials emphasized that the suspected strain involved is believed to be the North American hantavirus strain, which is not transmitted from person to person.
Different From Deadly Andes Strain
Health experts clarified that the Illinois case differs significantly from the Andes hantavirus strain involved in the South American cruise ship outbreak. Unlike North American strains, the Andes variant has rare but documented cases of human-to-human transmission.
Dr. Lora explained that the rodent species responsible for carrying the Andes strain are not naturally found in the United States, greatly reducing the risk of a similar outbreak occurring domestically.
This
Medical News report highlights that hantavirus infections re
main extremely rare across Illinois and the broader United States. Since monitoring began in 1993, Illinois has recorded only seven confirmed cases, with the most recent prior infection documented in March 2025. Nationwide, the CDC has recorded approximately 890 hantavirus cases over the same period.
Public Health Officials Urge Precautions
Health authorities continue to reassure the public that the overall risk remains very low. Nevertheless, experts are urging residents to take precautions when cleaning areas potentially contaminated by rodents. Recommended measures include ventilating enclosed spaces before cleaning, wearing gloves and masks, and avoiding sweeping or vacuuming dry rodent waste that could release infectious particles into the air.
The latest investigation serves as another reminder that even rare infectious diseases can emerge unexpectedly through ordinary household activities. While the patient is recovering and no broader community threat has been identified, public health officials remain cautious as they await final CDC confirmation results and continue monitoring for any additional cases.
Reference:
https://dph.illinois.gov/resource-center/news/2026/may/idph-update-on-hantavirus.html
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