Coronavirus: too early to tell if vaccine booster shots are needed, WHO chief scientist says

As some governments and pharmaceutical officials around the world prepare for Covid-19 vaccine booster shots targeting more-infectious virus variants, a World Health Organization (WHO) scientist says it is too early to tell if they will be required.“We do not have the information that’s necessary to make the recommendation on whether or not a booster will be needed,” Soumya Swaminathan, the WHO’s chief scientist, said in a Zoom interview on Friday. The “science is still evolving”.Such a call is…

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