Health Officials Probe Possible Hantavirus Case in Illinois

Illinois health officials are currently looking into a suspected case of hantavirus, which, interestingly, is not connected to a recent outbreak on a cruise ship. This announcement was made by the Illinois Department of Public Health on Tuesday.

It seems that a resident of Winnebago County might have contracted the virus while cleaning a property contaminated with rodent droppings. The individual is believed to have caught the North American strain of hantavirus, which isn’t transmitted between people, according to the state health department.

To confirm this case, the Centers for Disease Control and Prevention is running additional tests on the individual, a process that might take up to ten days.

The state health department assured residents that the chances of contracting hantavirus remain “very low.”

In relation to the cruise ship outbreak, three fatalities have been reported, as stated by the World Health Organization. That particular outbreak involves the Andes strain, which can spread among individuals in close, prolonged contact.

Interestingly enough, Illinois officials have not received reports of any residents being on that cruise ship.

The state resident who may have contracted the virus is not in serious condition. Good news, right? They are recovering after experiencing mild symptoms that did not necessitate hospitalization.

Prior to this potential case, Illinois reported seven positive hantavirus cases since 1993, with the most recent one occurring in March 2025.

Looking at the bigger picture, there have been about 890 hantavirus cases reported across the nation from 1993 to 2023, according to the CDC. The virus gained attention last year when actor Gene Hackman’s wife, Betsy Arakawa, passed away from hantavirus in their home in New Mexico. Hackman himself passed away about a week later due to heart disease complicated by Alzheimer’s.

Hantaviruses are a group of viruses associated with rodents that can lead to serious illness in humans. They can be contracted through contact with infected rodents or their droppings, saliva, or urine. Unfortunately, there is currently no antiviral treatment or vaccine for hantavirus.

Various strains of hantavirus can lead to hantavirus pulmonary syndrome, which can inflict damage on the lungs. Symptoms can take one to eight weeks to surface after exposure to an infected rodent. Early signs may include fatigue, fever, and muscle aches, while later stages could produce coughing and difficulty breathing. Alarmingly, about 38% of those who develop respiratory symptoms may not survive the disease, as noted by the CDC.

Hantaviruses can also cause hemorrhagic fever with renal syndrome. Initial symptoms often feature severe headaches, back and abdominal pain, fever, chills, nausea, and even blurred vision. In advanced cases, symptoms can escalate to low blood pressure, poor blood circulation, internal bleeding, and acute kidney failure.

While the risk in Illinois is still very low, Governor JB Pritzker’s office expressed concerns about the federal government’s ability to support public health preparedness both domestically and internationally in a statement released Monday.

This statement led Illinois officials to seek clarification, oversight, and accountability from the federal government about various concerns, including the implications of budget cuts at institutions like the CDC and NIH on their preparedness for hantavirus.

There are also questions regarding whether staffing reductions at the CDC and the U.S. withdrawal from the World Health Organization are affecting how the situation is managed.

The U.S. Department of Health and Human Services had not responded to queries for comments by Tuesday afternoon.

The withdrawal from the WHO, initiated earlier as a critique of its handling of the COVID-19 pandemic, has been met with criticism. Many public health officials believe it could hinder the U.S.’s access to vital information regarding health threats globally.

Since the withdrawal, Illinois has joined the World Health Organization’s Global Outbreak Alert and Response Network, which aims to provide resources and information during outbreaks and public health emergencies. This partnership was partly formed to ensure steady information flow to the state.