Pfizer beats back variants as AstraZeneca receives a timely boost – Sydney Morning Herald

Its reassuring, said Professor Fiona Russell, an adviser to the World Health Organisation on vaccines, based at the Murdoch Childrens Research Institute.
Certainly, Pfizer is a great vaccine. There is no doubt about that.
However, the study is limited by the fact the researchers did not explicitly test each infected person to see if they had contracted the South African variant. They simply assumed that if they did not have the British variant they must have the South African virus.
Im not a big…

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