LONDON — South Africa halted the rollout of AstraZeneca’s Covid-19 vaccinations after data showed it gave minimal protection against mild infection from one variant, stoking fears of a much longer cat-and-mouse battle with the pathogen.
The novel coronavirus has killed 2.3 million people and turned normal life upside down for billions but new variants of the virus have raised fears that vaccines will need to be tweaked and people may have to have booster shots.
Researchers from the University of Witwatersrand and the University of Oxford said in a prior-to-peer analysis that the AstraZeneca vaccine provided minimal protection against mild or moderate infection from the so-cal…
Keep on reading: Vaccine shock: S. Africa ends AstraZeneca shot on fears it doesn’t stop mild illness