Stay 6 Feet Apart, We're Told. But How Far Can Air Carry Coronavirus? - The New York Times

This 3-D Simulation Shows Why Social Distancing Is So Important - The New York Times

Coronavirus symptoms: How can I tell if I've got COVID-19? - Los Angeles Times

Density Is New York City's Big 'Enemy' in the Coronavirus Fight - The New York Times

Can air purifiers help stop coronavirus spread indoors? - Vox

Social Distancing FAQ: How It Helps Prevent COVID-19 (Coronavirus) and Steps We Can Take to Protect Ourselves

The 60-Year-Old Scientific Screwup That Helped Covid Kill

Coronavirus: Why You Must Act Now, by Tomas Pueyo

See how a sneeze can launch germs much farther than 6 feet

Key Times to Keep Your Distance at Airports Take the following steps to protect yourself and others from COVID-19 when you travel by air: • Stay 6 feet apart from others

Social distancing is a strategy of fighting coronavirus' public spread

Face Masks and COVID-19

How to Keep the Coronavirus at Bay Indoors - The New York Times