CNN | Staying safe isn’t just about hygiene and distance. It’s about time, too.

(CNN)  By now, you’ve likely heard the main pieces of advice to avoid the coronavirus.

Wear a mask. Wash your hands with soap. Stay at least 6 feet from others. If you do gather with others, go outside rather than inside.

Still, there’s one more aspect to infection that has received less attention. Growing evidence suggests that Covid-19 infection, like with other illnesses, is related to prolonged time exposed to the virus. The longer you stay in an environment that may contain the virus, the higher the risk of getting sick.  —more