August 04, 2021
The presence of antibodies in an antibody test is a sign of a previous infection, or that a vaccine is working to protect an individual, but the quantity of these proteins does not directly correlate to the level of immunity.
Reuters
Standing in a taxi queue recently I overheard a middle-aged man say to a woman of similar age ahead of him in line, “I got 650”. Whatever he was referring to, he was clearly pleased with his result and he asked what she got. She smiled and said, “8,500”. His face fell and it took a little more eavesdropping – it’s to be expected if you speak loudly in a cab queue – to realise they were discussing their Covid-19 antibody test results.