It is not yet clear whether the world needs a new set of vaccines to fight different variants of the novel coronavirus, but scientists are working on new ones so there is no reason for alarm, the head of the Oxford vaccine group said on Tuesday.
“I think the jury is out on that at the moment, but all developers are preparing new vaccines so if we do need them, we’ll have them available to protect people.”SA paused a planned 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.
“I think there’s clearly a risk of confidence in the way that people may perceive this, but as I say, I don’t think that there is any reason for alarm,” Pollard said. “The really important question is about severe disease and we didn’t study that in SA, because that wasn’t the point of that study, we were specifically asking questions about young adults.”
An analysis of infections by the SA variant showed there was only a 22% lower risk of developing mild-to-moderate Covid-19 if vaccinated with the AstraZeneca shot compared to those given a placebo.
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