A protein, TMPRSS2, is driven up by testosterone and scientists think the virus could use this protein to unlock cells.
Researchers at London’s Institute for Cancer Research are examining the link further, while the University of California, Los Angeles is looking at testosterone blocking therapy to help with coronavirus treatment.
Discussing the hypothesis that testosterone was making men more susceptible to coronavirus with the Mail on Sunday, Professor Nick James of the Institute for Cancer Research said it was, “biologically plausible.
“One of the proteins the virus appears to bind to in lungs is TMPRSS2. It’s a sort of lock and key thing: having bound to this protein, it provides the virus with a route into the cell.