Covid.gov and Covidtests.gov have been replaced by a new page titled "Lab Leak," which claims the COVID-19 virus leaked from a lab in Wuhan.

Don't throw out your expired COVID tests just yet. Here's how to find out if the expiration date has been extended.

Researchers at Karolinska Institutet have identified biomarkers in the blood associated with symptoms of long COVID, particularly severe respiratory disorders.