A good mask ... the size of coronavirus particles, others evaluate performance based on viruses like influenza. Researchers also still aren't sure about the price degree to which the virus gets ...

A group of Chinese scientists have developed a face mask that can detect viral exposure from a 10-minute conversation with an infected person. According to the study published this week in the journal ...

A Trump supporter, she says that she does not wear a mask because she believes that the concerns about Covid-19 are overblown. "Sure, there's a virus," she says. "But people die of the flu every ...

A new study says wearing a face mask is effective at preventing airborne transmission of the novel coronavirus, particularly so when a person infected with the deadly virus puts on one. A group of ...

It's unclear if the novel coronavirus is similar in the size of its particles ... In particular, experts believe masks could be useful, not for people trying to avoid the virus, but for people ...

even with that larger change in the virus," Cohen said. The changes include new guidance for when to stay home when sick, ...

He also noted that the mask is a symbol that the government stands with the public during Covid-19.

The death of an 11-year-old boy has raised questions over whether children should wear anti-virus ... the risks of COVID-19 against heat illnesses, as well as the guidelines on mask use at schools.