These restrictions apply to male donors who have had sex with other men, or MSM, female donors who have sex with an MSM, people with piercings and tattoos, and people who have traveled to malaria-endemic areas. Historically, blood and blood product donations have been subject to strict restrictions and deferral periods to guarantee no infectious, transmissible disease enters the national blood supply. COVID-19 vaccinated people can donate plasma This isn't wiping out any other antibodies that are present."Īnd the antibodies from a vaccinated person don't stay forever in the recipient receiving their blood or plasma – at least one or two months, Frieman said. This short-term, passive immunity is the scientific reasoning behind giving COVID-19 patients plasma for recovery and to prevent severe illness, but how clinically helpful it actually has been is uncertain. "Vaccination can certainly boost antibodies that are present from the infection, and only for the protein in the vaccine. "There is no precedence for a vaccine to 'wipe out' antibodies made from infection with a pathogen," he told USA TODAY via email. Vaccines in general don't have the ability to override or do away with pre-existing antibodies, said Matthew Frieman, associate professor of microbiology and immunology at the University of Maryland School of Medicine.
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