Two doses of the Pfizer-BioNTech covid-19 vaccine provide more than 95% protection against infection, hospital admission, and death, including among older people, a peer reviewed study […]
The efficacy of different covid-19 vaccines against variants of concern, including those first identified in the UK and South Africa, will be assessed by Public Health […]
In August 2020 President Vladimir Putin announced Sputnik V, a vaccine developed by Russia’s Gamaleya National Center of Epidemiology and Microbiology. The president’s claim that it […]