What is COVID-19 (coronavirus), how does it spread, and how is it treated?

COVID-19 is a contagious respiratory disease caused by infection with the virus SARS-CoV-2. It usually spreads between people who are in close contact (within 6 feet, or 2 meters). The virus spreads through respiratory droplets released when someone breathes, coughs, sneezes, talks or sings. These droplets can land in the mouth or nose of someone nearby or be inhaled. The virus can also spread if a person touches a surface or object with the virus on it and then touches his or her mouth, nose or eyes, although this isn't considered to be a main way it spreads.

The most common symptoms of COVID-19 are a fever, cough and tiredness. But there are many other possible signs and symptoms.

Currently, only one antiviral drug, called remdesivir, is approved to treat COVID-19. Some drugs may help reduce the severity of COVID-19. The U.S. Food and Drug Administration has given emergency use authorization for three COVID-19 vaccines.