Hepatitis A blood tests check for immunoglobulin M (IgM) and immunoglobulin G (IgG) antibodies. An IgG-positive and IgM-negative result may suggest immunity to hepatitis A. A doctor may request a ...

If you take a COVID test and it comes back negative, that may not mean you're in the clear just yet. For those feeling ill, particularly those who had a known COVID exposure, experts caution that one ...

As the nation experiences what many experts believe is the second-largest wave of COVID infections since the pandemic started, many Americans will be checking to make sure they don’t have the ...

The two most popular techniques for quick COVID-19 testing are serology and molecular tests. Serology tests look for the presence of antibodies brought on by the SARS-CoV-2 virus, and molecular ...

Although chlamydia is highly contagious, it does not always transmit to a person’s sexual partners. It is also possible to have a false-negative or false-positive test result. Having more frequent sex ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NEXSTAR) – You’ve got the sore throat, ...