I'm a viral immunologist. Here's what antibody tests for COVID-19 tell us

From serology to T-cells, there’s still a lot we don’t know about how immunity to coronavirus works. "The sheer speed with which Covid-19 spread across the world, coupled with the novel nature of the virus, has meant that scientists and technicians have been playing a game of catch-up. But our knowledge, though incomplete, is now much greater than it was at the start of the outbreak, and medical systems are better equipped to respond." Viral immunologist Zania Stamataki comments for the Guardian.