LOS ANGELES - Scientists at the National Institutes of Health (NIH) say they have found how genetics play a critical role in who develops severe cases of COVID-19 and why more men than women die from the illness.
Much is still being learned about the novel coronavirus that has claimed the lives of more than 200,000 people in the U.S. Nearly 1 million deaths have been recorded worldwide to date, according to data tracked by Johns Hopkins University.
Researchers have rushed to study the unpredictable and wide variations in illness severity that the virus causes in different people.