Russia’s Sputnik V vaccine has 92% efficacy in trial
Trials with 20,000 volunteers show the vaccine gives a high level of protection against Covid-19.
Author Archives: BBC News - Health
Covid: Over 40% of deaths in mid-January linked to virus
It is highest since pandemic began - but there are signs the peak may have passed.
UK finds more coronavirus cases with ‘concerning’ mutations
The changes seen may help the virus evade parts of the immune system.