Tuesday, March 9, 2021
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Home Health & Fitness Four doubts that remain about all vaccines against covid-19

Four doubts that remain about all vaccines against covid-19


As of Friday (01/29), more than 90.4 million doses of vaccines against covid-19 had been applied, according to data from the “Our World in Data” project, linked to the University of Oxford – according to the same survey, Brazil currently has 1.6 million vaccinated.

But as countries accelerate or start their immunization campaigns, several questions about vaccines continue to concern scientists, governments and the general population.

It is not yet known, for example, how long the immunity offered by vaccines lasts or whether the new variants of the coronavirus, which have appeared around the world, will be resistant to immunization.






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Source link
https://www.z1portal.com.br/quatro-duvidas-que-ainda-restam-sobre-todas-as-vacinas-contra-a-covid-19/


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