Vaccinated and confused? Answers about masks, the delta variant and breakthrough infections

Birthday parties as virus vector

Worried by Delta variant, WHO officials urged vaccinated people to keep wearing masks

Three studies, one result: Vaccines point the way out of the pandemic

Pfizer, Moderna vaccines likely to produce long-lasting immunity, study suggests

Antibody test type and timing key in gauging COVID immunity

Why teens need a break this summer

Many post-COVID patients are experiencing new medical problems, study finds

Distorted, bizarre food smells haunt COVID survivors

Novavax offers US a fourth strong COVID-19 vaccine

Looking to tackle prescription overload

Paying the price for sun damage

So, you want to mingle outdoors this summer?

The importance of getting fully vaccinated

What would it take to vaccinate the whole world? Let’s take a look.

Regular exercise may help protect against severe COVID

Brisk walking is good for the aging brain

‘There was nothing anybody could do for these patients.’ Now there is.

Weighing the use of growth hormones for children

This is your brain on junk food