The second dose of a vaccine from Koronavirus gives bigger effect, than the first: research
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Research of medical schools Stanford university showed that the second dose of a vaccine against Koronavirus causes a powerful impulse for part of immune system which provides broad antiviral protection. This opening confirms opinion that the second dose of a vaccine should not be passed. Research is published in Nauchny zhurnal Nature...

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Pfizer, Inc
Stanford University
Main activity:Science and education