The virus that causes COVID-19 spreads mainly through the air when a person coughs, sneezes, sings, talks or breathes. Virus particles can drift in the air and be inhaled, especially in crowded places ...

Every winter, as Delhi’s air thickens with smog, masks return as our go-to protection. They do help filter harmful particulate matter, but poor mask hygiene can ironically do more harm than good. A ...

(NewsNation) — Los Angeles County residents affected by the wildfires that began burning this week are advised to wear the correct masks to protect themselves against harmful smoke. Health experts ...

COVID-19 cases are spiking dramatically in Australia. So is the return of mask mandates a good idea - and how much will masks ...