But with scattered reports of recovered cases testing positive again, a lot of people are wondering if it's possible to develop immunity at all. So, can you catch COVID ... B cells and T cells.

WSJ’s Daniela Hernandez explains T-cells’ role in Covid immunity and how they relate to antibodies. Illustration: Laura Kammermann Daniela Hernandez extends her health and science reporting to ...

Two types of white blood cell are important in this: T cells and ... not induce full immunity are still important, of course, because they can lessen the severity or duration of infection. This is why ...

“We were trying to leverage that to learn more about immunity ... called T cells also combat infection — but these drew less attention at first. Many clinical trials of COVID-19 vaccines ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. The CDC has published a new coronavirus immunity study from South Korea that indicates ...

However, a study published last month in Annals of Internal Medicine finds that antibody testing likely undercounts the number of vaccinated people who have had a previous COVID-19 infection, ...

Researchers discovered that when Covid-19 infects a human cell, it sets off a ghoulish transformation. The cell doesn’t die right away. Obeying instructions from the virus, the newly infected ...

The Covid-19 immunity that’s been tested is based on antibodies. Some hold out hope that disease-fighting T-cells, which work differently than antibodies and last longer, will afford longer ...

Among the many lingering questions about the coronavirus ... levels shouldn't cause excessive concern: Your immunity doesn't solely depend on these proteins. White blood cells also have an ...

A new study from the UK indicates that coronavirus immunity can last ... the previous wave might be vulnerable again if the immunity doesn’t last longer than 5 months. The scientists plan ...

One mutation may have been crucial to the covid ... to test how JN.1’s spike protein mutation might have helped it evade neutralising antibodies, which stop viruses from entering cells.