That is currently being studied, and the data are not out yet. This is critical to know, actually. We know that the vaccine prevents symptomatic Covid disease, but we don’t know if it prevents people from catching the virus

The polymerase chain reaction (PCR) is a fast and inexpensive technique used to "amplify" - copy - small segments of DNA to enable testing.

Social isolation. Loneliness. They grew restless. A group of older women met for lunch after six months of sheltering in place. A meal with...

You cannot catch covid-19. Infection with the coronavirus (SARS-nCoV-2) can lead to you developing covid-19, the disease associated with coronavirus