Despite pandemic fatigue and complacency in too many countries, vaccine inequality will penalize poorer economies, which are also likely to prove more
Pfizer says there are no data to show that a single dose of its vaccine provides protection beyond 21 days. Two doses given three weeks apart...
A new variant of SARS-CoV-2 is spreading rapidly in the United Kingdom, with over 1,400 cases since September. SARS-CoV-2, the virus that causes COVID-19, generally...