As flu cases rise across the country, here is everything to know about testing yourself for the illness at home.

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 ...

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 ...

A case of false-positive alcohol toxicology tests believed to be linked to treatment with sodium-glucose cotransporter 2 (SGLT2) inhibitors raises concern that the widely used diabetes drugs could ...