Pfizer’s Covid-19 vaccine is as effective against new strains of the virus raging in Britain and South Africa as it is against previously detected ones, according to new research.
Pfizer released the results of a joint study conducted with the University of Texas Medical Branch on Thursday.
It tested the vaccine resistance of 20 participants in its earlier trials against lab-made versions of the new strains of the virus. It found no reduction in their ability to neutralise the new strains.
Both strains, which appear more contagious than previous ones, are rampant in the countries in which they were first detected. Britain recorded a record 62,322 cases of Covid-19 on Wednesday, with South Africa recording over 21,000.