Doctors said the risk of getting myocarditis from Covid-19 is far greater than the...

How long will protection last? Can we make better vaccines? And when will there be shots...

AstraZeneca and Johnson & Johnson's vaccines can cause "mutant" proteins to escape cells,...

The two vaccine-making giants plan to launch a 35,000-person study in the next few weeks,...

US health officials have said they will be ready to start giving the shot to children...

"We had such a spectacular outcome with coronavirus that we absolutely need to embark on...

The European Medicines Agency is investigating reports of clots in people who received...

The US is recording more than 60,000 new coronavirus cases a day, up from fewer than...