We now have the best evidence yet that Covid immunity lasts 6 to 8 months, perhaps even years

Experts have long focused on coronavirus antibodies to assess whether someone has...

People who develop Covid-19 antibodies are unlikely to get the virus again for at least 6 months, a new Oxford University study suggests

"We can be confident that, at least in the short term, most people who get COVID-19 won't...

Kids may produce a weaker antibody response to Covid-19 — it could be why their infections are milder

Children may fight off the virus before it has a chance to destroy their cells or...

The WHO warns getting Covid-19 under control may require tougher lockdowns, 'sacrifice for many people'

"We're well behind this virus," warned Dr. Mike Ryan, executive director of the World...

Herd immunity approach to Covid-19 is 'unethical,' the WHO says

The WHO warned that pursuing herd immunity by allowing Covid-19 to spread was...

Trump claims he is now immune to the coronavirus and has 'a protective glow'

The president said on Sunday he now has "a protective glow" — a concept which does not...

5 vaccine experts told us what they'd need to know before they'd be comfortable taking a Covid-19 shot

Crucial vaccine results are expected as soon as October. Here's how top experts will...

Men may have a slower immune response to the coronavirus than women, and that could explain their higher mortality rates

It took three days for men infected with COVID-19 to develop immune system responses,...