evidence: "[T]he American Red Cross accepts and uses donations from vaccinated people," a spokesperson for the American Red Cross told us in an email. "Blood donations from individuals who have received a COVID-19 vaccine are not ‘contaminated’ and are safe for blood transfusion. The COVID-19 vaccine is designed to generate an immune response to help protect an individual from illness, but vaccine components themselves are not found within the bloodstream." [...] Last year, we debunked a false claim about the Red Cross not accepting convalescent plasma donations from people who had received a COVID-19 vaccine because, the claim wrongly said, vaccination would "wipe out" people’s antibodies. Convalescent plasma is the plasma, or clear fluid part of blood, of people who have recovered from a disease. It contains potentially protective antibodies against that disease. [...] American Red Cross (@RedCross). "While updated FDA guidance allows donations from those who received a COVID-19 vaccine to be processed into convalescent plasma, it would require complex Red Cross system updates & delay our ability to meet immediate needs of immunocompromised patients with the virus. (2/3)" Tweet. 20 Apr 2022.