Very preliminary but encouraging result: #Covishield protects against #B1617. Early results using in vitro neutralization assay show that both convalescent (prior infection) sera and Covishield vaccinated sera offer protection against the B.1.617 variant, aka #DoubleMutant. pic.twitter.com/eOVAlktVug

— Rakesh K Mishra (@3RakeshMishra) April 22, 2021