As virus infections rise, dust off masks to wear in busy public places ... and both the CDC and the Transportation Security Administration are advising travelers to put on masks.

N95 masks are essential for medical workers exposed to the coronavirus. But in ordinary times, they're used by woodworkers, nail technicians and landscapers.

The CDC does recommend masks for people being evaluated for the new virus, people confirmed to have it, household members and caregivers. Airline crew should offer a face mask to a sick traveler ...

Updated at 1:30 p.m. ET. The Centers for Disease Control and Prevention released new research on Wednesday that found wearing a cloth mask over a surgical mask offers more protection against the ...

The World Health Organization’s meta-analysis investigated the best distance for avoiding person-to-person transmission of the virus, and how well face masks and eye protection worked to prevent ...

The C.D.C. concedes that cloth masks do not protect against the virus as effectively as ... may be considered in certain situations and by certain people when greater protection is needed or ...

Dr. Marr and other researchers are still sussing out exactly how much inbound or outbound virus different types of masks block. But based on a wealth of past evidence and recent observations, the ...