Studies on people who were exposed to Covid and then recovered have shown that their antibodies remained pretty stable, and only dropped "modestly" after six or eight months.
Another promising outcome: coronavirus-specific B and T cells (which work together to remember and destroy infections) also appear to increase and remain high after infection.
New research that hasn't been peer-reviewed yet found that people who have already had Covid tend to have higher antibody responses after their first dose of the mRNA vaccines than two doses of the vaccine in people who haven't had it.
Some immunologists argue that people who've recovered from Covid should only need one dose of a vaccine.
There have been some anecdotal reports of Covid survivors experiencing more severe side effects feeling achy, sick or even feverish after the first dose of vaccinations.
"That makes complete sense, and shows you that the immune system is really responding to [the virus] in a much more vigorous way,"
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