Tiny variants in genes may dictate severity of coronavirus (theguardian.com)
It has been one of the most baffling aspects of the Covid-19 pandemic. Healthy young men and women have become infected with the virus and developed life-threatening side effects. But at the same time, many of their contemporaries have simply shrugged off the condition.
Unknown factors are clearly leaving some people vulnerable to the pandemic’s worst effects even though some of them are young, are not overweight and do not suffer from other obvious health problems. Scientists think that tiny genetic differences are causing some to be struck down while many others are spared.
And these differences in DNA are now being tracked by researchers who believe they offer a route to developing new drugs that could halt many of the worst consequences of suffering from Covid-19.