India: 16% vaccine breakthrough in Delhi hospital coronavirus study

A small-scale study on 113 healthcare workers who had received at least one vaccine dose at a private hospital in Delhi found that 18 tested positive for Covid but all except one had mild symptoms.   More...

India: B1617 twice as infectious as UK coronavirus variant B117

Early indications from an analysis of the growth of the B.1.617 variant of the Covid-19 virus has shown it to be at least twice as infectious as the UK variant and thrice as infectious as the variant behind last year’s Covid-19 wave.  More...