There has been plenty of confusion on Covid-19 prevention. Researcher have completed a massive review of 172 studies in 16 countries on coronavirus disease transmission. They concluded that keeping at least one meter apart plus wearing face masks and eye protection are the best ways to cut the risk of COVID-19 infection.
They shared frequent handwashing and good hygiene are also critical, but noted that even all these measures combined cannot give full protection.
Source: Reuters, June 1, 2020. Link.