The virus that causes COVID-19 is thought to spread mainly from person to person, mainly through respiratory droplets produced when an infected person coughs, sneezes, or talks. These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs. Spread is more likely when people are in close contact with one another (within about 6 feet).
Although social distancing has been recommended by CDC since April 2020, it is not mandatory for everyone.Most important is no one can measure exactly how far to keep away from each other. American needs to be reopen only if preventive means have been implemented. Face mask is not enough for people to work because eyes are under exposure to air which might contain droplet from other people. I recommended this face shield to prevent you from risky air. Check this out on Amazon.