CMAAO Coronavirus Facts and Myth Buster: COVID-19 Vaccines Must Work Against Old and New Strains, Says FDA |
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CMAAO Coronavirus Facts and Myth Buster: COVID-19 Vaccines Must Work Against Old and New Strains, Says FDA

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1.     COVID-19 vaccines that have been modified to work against virus variants should have clinical immunogenicity studies that support that they are effective, and make sure that the vaccines work not only against the variant strain, but also the initial strain, noted the FDA in updated guidance.2.     Manufacturers are required to conduct booster studies, where the modified vaccine is administered to those who have already been inoculated with the initial vaccine, in order to ascertain the immune response in these people as well.3.     FDA wishes to determine whether the immune response is comparable against the new variant and also wants to ensure that it is safe to boost those who have already received vaccination.4.     The studies would include hundreds of people and would take a few months to complete.5.  &n...
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