Health

Masks are effective only if you wear them properly. Here's the right (and wrong) way

Operation Warp Speed commits $1.6 billion to Covid-19 vaccine maker Novavax

Can the AC filter in your home, office or local mall protect you from Covid-19?

Contact tracing is no longer possible across the US South due to rapid coronavirus surges, health expert says

I got Covid-19 two months ago. I'm still discovering new areas of damage -- Richard Quest

Can probiotics help with depression? New research suggests a link

US prescriptions for hydroxychloroquine skyrocketed from February to March, study finds

Texas coronavirus cases top 1,300 from child care facilities alone

Less dream-stage REM sleep linked to higher risk of death, study says

Regeneron starts Phase 3 trial of Covid antibody drug that might treat and prevent infection, company says