The European Medicines Agency's safety committee said that capillary...
Pfizer/BioNTech vaccine
Every imperfect study in our midst reminds us of...
COVID-19 poses a particular challenge because people with asymptomatic...
The studies offer hope that COVID-19 vaccines remain a...
But the scientists cautioned that more clinical tests and...
The US has documented an average of 2,259 deaths and 205,661...
Margaret Keenan said she feels privileged to be the...












