Keeping at least one meter apart and wearing face masks and eye protection are the best ways to cut the risk of COVID-19 infection, according to the largest review to date of studies on coronavirus disease transmission.
In a review that pooled evidence from 172 studies in 16 countries, researchers found frequent hand-washing and good hygiene are also critical — though even all those measures combined can not give full protection.
The findings, published in The Lancet journal on Monday, will help guide governments and health agencies, some of whom have given conflicting advice on measures, largely because of limited information about COVID-19.