If your doctor thinks you might have lupus, they may ask you to take blood tests to check for antibodies in your blood. The most common antibody test is called the antinuclear antibody (ANA) test.

As the world continues to navigate the aftermath and lingering presence of COVID-19, one question remains as relevant as ever: Which COVID-19 test is right for me—diagnostic or antibody? Whether ...

LOS ANGELES (KABC) -- U.S. regulators issued new guidance this week shortening the time that people who received Moderna or Pfizer's COVID-19 vaccine have to wait for a booster, and it's different ...

CLERMONT, Fla. — With the new omicron variant now spreading across the U.S. many people may be wondering how much protection they actually have from COVID-19. A medical testing lab in Clermont is now ...

More mutations, more transmissible, and more likely to infect vaccinated people—coronavirus variants such as Omicron have once again put the globe on high alert. "It's one of the lingering fears that, ...

If you are looking for a single magical number to tell whether you can be more lax on Covid-19 precautions, sorry, but the level of antibodies in your blood is not going to provide it. Antibodies aren ...

With troubling evidence that COVID-19 vaccines lose their effectiveness over time, Americans are wondering: Is my shot still doing its job? Today’s commercially available tests can’t tell you. But a ...

An antineutrophil cytoplasmic antibodies (ANCA) test is a blood test that checks for proteins your immune system makes to fight germs. This test can help your doctor diagnose autoimmune diseases like ...

ASMAs were first discovered in 1965 in people with chronic active hepatitis. Usually, your immune system will attack foreign bodies like a parasite or a virus with the antibodies made for defending ...

I recovered from Covid-19 back in April. I was fortunate: My symptoms, while nasty, were minor compared to others. I had the hacking dry cough and I was fatigued to the point where I would spend many ...

MOSCOW — When Russians talk about the coronavirus over dinner or in hair salons, the conversation often turns to “antitela,” the Russian word for antibodies — the proteins produced by the body to ...