Some COVID-19 patients are testing positive after recovering in Asia, but experts say the presence of antibodies should guarantee short-term immunity ...

Evanston, IL - Is it possible you were infected with a mild form of COVID-19 and didn’t know it? How robust is your body’s immune response to the vaccine, and how will we know whether we’ve reached ...

SAN FRANCISCO -- There has been a lot of talk about testing for the coronavirus, but you may not entirely understand what the different tests are for. The coronavirus makes some people sick, some ...

COVID-19 tests used to be able to detect a positive case within the first 48 hours, but many results are now delayed until four days after symptoms appear, according to the LA Times. Elizabeth Hudson, ...

A T-cell test developed by Adaptive Biotechnologies could become the first commercially available test of its kind, and it may be more effective at detecting past COVID-19 infections than antibody ...

As mask mandates are lifted and restrictions removed in a step toward normalcy, a test to measure immunity would be a powerful tool to measure individual risk. In 2010, doctors told Ben Sobieck, now ...

Anyone with worsening symptoms should contact their doctor or Healthline. People who have a weakened immune system, high-risk ...

Statewide blood testing for COVID-19 has found that only 2% of Virginians had antibodies to the virus as of mid-August. The result has prompted the researchers to conclude that herd immunity in ...

But this wave wasn't following the pattern of a new subvariant emerging, which suggested a wane in immunity. Baker said ...