That 'efficacy' figure? It doesn't translate from one test to another. And it's not the most important number, anyway.
'We Need a People's Vaccine, Not a Profit Vaccine': Sanders Urges Biden to Support Push to Suspend Pharma Patents
A conversation between W. Kamau Bell and Black doctors, nurses and researchers that gets to the heart of questions about the COVID-19 vaccines.
Scientists are racing to understand new, highly transmissible versions of the COVID-19 virus, and what they could mean for vaccine efforts.