EXPLAINER-When and how will COVID-19 vaccines become available?
JULIE STEENHUYSEN nad CARL O’DONNELL BRITAIN has become the first Western country to approve a COVID-19 vaccine, jumping ahead of the United States and Europe after its regulator cleared a shot developed by Pfizer and BioNTech for emergency use in record time. Pfizer, with partner BioNTech SE, and rival Moderna have released trial data showing their COVID-19 vaccines to be about 95% effective at preventing the illness, while AstraZeneca last month said its vaccine was on average about 70% effective. The companies have said distribution could begin almost immediately after any approval, with governments around the world to decide who…
