Antibodies that people make to fight the new coronavirus last for at least four months after diagnosis and do not fade quickly, as some earlier reports suggested, scientists have found.

A handful of Chicago residents became the first in the city to participate in a national clinical trial to test a potential COVID-19 vaccine as the University of Illinois at Chicago launched its study on Monday.

One in five U.S. nursing homes faced severe shortages of protective gear like N95 masks this summer even as the Trump administration pledged to help, according to a study released Thursday.

Mayo Clinic researchers reported a strong hint that blood plasma from COVID-19 survivors helps other patients recover, but it’s not proof and some experts worry if, amid clamor for the treatment, they’ll ever get a clear answer.

With limited supplies of critical protective equipment, University of Illinois researchers have found a new way to decontaminate N95 masks using a common kitchen appliance. 

A largemouth bass fished from the Skokie River provided proof of the success of a 2018 dam removal on the Chicago River.

Testing for COVID-19 involves inserting a swab deep into the nasal cavity. But the virus can also be detected in saliva, and early research by University of Chicago scientists found those less invasive tests to be just as accurate.

Next month, the University of Illinois at Chicago will begin testing a vaccine to see if it will prevent people from getting the novel coronavirus or experiencing severe illness from it if they do get it.

As Illinois businesses and schools closed to slow the spread of the coronavirus, daily routines changed. How much of an impact will COVID-19 have on people’s future behaviors?

Several authors of a large study that raised safety concerns about malaria drugs for coronavirus patients have retracted the report, saying independent reviewers were not able to verify information that’s been widely questioned by other scientists.

According to a new study, cycling through Cook County Jail — a facility once dubbed the “largest-known source” of COVID-19 in the U.S. — is associated with roughly 16% of all documented cases of the virus in Illinois and Chicago through mid-April.

The placenta provides nutrients and oxygen to a developing fetus, among other things. In a small study, researchers found the placentas from pregnant women with COVID-19 showed signs of injury.

Starting Friday, Illinoisans must wear face masks in public. Ready to make your own? Cotton and other common fabrics, like natural silk and chiffon, are best, a new study finds.

Sharing a meal, attending a funeral and celebrating a birthday. In the midst of the COVID-19 pandemic, these otherwise innocuous activities can result in the spread of the highly contagious virus, according to a new report.

According to a new survey, four out of five Illinois residents are concerned about being able to afford some aspect of health care in the future, such as prescription drugs and health insurance.

In a small study, pregnant women diagnosed with the novel coronavirus during their third trimester didn’t spread the virus to their newborns. While a local researcher called those results exciting, he said they can’t be generalized to all pregnant women.