Is it necessary to get re-vaccinated after vaccination against COVID-19? Know the answers to your questions, Is it necessary to get vaccinated again after vaccination against COVID-19?
One indication of the need for boosters would be a growing epidemic among those who are vaccinated. For now, vaccines are largely effective…but the exact level of individual immunity they provide is still being evaluated.
To assess this immunity, researchers are paying particular attention to certain antibodies induced by vaccines: those that recognize the spike proteins that allow the coronavirus to enter cells, and those that will be of prime importance.
In support of this idea, one study shows that mRNA vaccines (Pfizer and Moderna), which appear to be most effective, generate higher levels of antibodies in the blood than adenovirus vaccines (Johnson & Johnson and AstraZeneca). A preliminary study also suggests that post-injection of the AstraZeneca vaccine, pre-Covid-19 patients will have lower levels of anti-spike antibodies.
Of course, medical staff would already like to continue to conduct blood tests of their patients that can reliably measure their level of protection against COVID-19. This will reveal the need for re-vaccination.
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