Health

The Guardian

Have I already had coronavirus? How would I know and what should I do?

Covid-19 symptoms, when they occur, vary widely and undertesting means many people have probably been unwittingly infected * Coronavirus – latest updates * See all our coronavirus coverageCovid-19 symptoms vary widely, and undertesting in many countries means that many people may have already had the coronavirus without having received a positive diagnosis. Is it possible to find out, and how should you behave if you think you may have been infected? Is there any way to know whether someone has had Covid-19 in the past?Dr William Hillmann: Antibody tests are being developed but are not in widespread clinical use yet. The antibody testing would allow us to check