People with COVID-19 can infect others even if they are more than 6 feet apart. In updated guidance, the CDC acknowledges airborne transmission can occur, especially in poorly ventilated spaces.
Do portable air cleaning machines really help reduce the risk of COVID-19 transmission in the home? The frustrating short answer: "It depends." Find out what it depends upon.
A vaccine against the coronavirus needs to keep people from getting very sick and dying. But preventing the spread of the disease is also important, and vaccines delivered by nasal spray may do that.
The information includes details on where transmission is happening most. If more states shared this widely, it could shape policy and save lives, health researchers say.
