After Four Antibody Tests, I’m Still Not Sure I’ve Had Covid

Central London was deserted when I arrived at the clinic for my first test for antibodies to the novel coronavirus. After more than a month stuck at home under lockdown, I’d anxiously donned a mask and ventured into the city’s financial district, where a doctor was offering a test.

Like many struggling through the pandemic, I suspected that I might have been infected with Covid-19 a while back and was eager to find out for sure. The doctor took a small lancet, pricked my finger and pipetted a drop of blood into a plastic cassette. As the weak control line began forming in the results window, I nervously waited to see if I’d had it.

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