As the new coronavirus burns its way across the world, scientists are rushing to find ways to identify those who have been infected — including those who have recovered from COVID-19. Those people, ...

You want to know if you have immunity to COVID-19. And now there are tests on the marketantibody teststhat promise to tell you if you were exposed to the novel coronavirus or had the disease. The hope ...

A TPO antibody test helps diagnose autoimmune thyroid diseases like Hashimoto’s thyroiditis. A positive test result means antibodies are present and may indicate a thyroid condition, but other tests ...

LOS ANGELES -- 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 than the ...

Testing positive for COVID-19 is not exactly a positive experience. After all, wanting to go viral these days doesn’t tend to mean wanting to be infected by the severe acute respiratory syndrome ...

Medically reviewed by Laura Young, MD Key Takeaways A positive herpes IgG test result means you have or had a herpes ...

WASHINGTON (ABC7) — While there's an increasing need for more diagnostic testing for COVID-19, there's also a greater need for antibody tests that could indicate if someone is immune to infection. It ...

The hepatitis A virus (HAV) antibody (AB) total test identifies both types of antibodies that the body produces in response to HAV infection. A reactive result means the test has detected HAV ...

The FDA has issued emergency authorizations to 12 antibody tests for the virus. As federal officials gradually begin reopening the country, expanded testing is central to the conversation. Until now, ...