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Covid-19 vaccines: Sinovac recipients may need two booster shots, says scientist

Two doses of the Sinovac Covid-19 vaccine boosted with one shot of Pfizer will induce higher levels of protective antibodies than two Pfizer doses, but this combination is not sufficient to stop Omicron infection, according to a preprint study.The findings suggest countries that have used the Pfizer vaccine as a booster dose after Sinovac’s CoronaVac, widely used in China and developing countries, may still need to offer a second booster dose, according to one author of the paper, which has not…

Read the original article at South China Morning Post

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