evidence: As a precaution, donors need to wait 3 days after receiving each COVID-19 vaccine before donating blood, plasma, or platelets. This wait time applies to all COVID-19 vaccinations, regardless of which vaccine you receive. [...] Donors need to wait three days after any COVID-19 vaccination to make sure they have had no side effects and are feeling healthy and well on the day of donation. This wait time currently applies to all COVID-19 vaccinations, regardless of which vaccine donors receive. [...] COVID-19 vaccine studies show most temporary symptoms occur in the two days following vaccination. As always, we need donors to feel healthy and well on the day of donation. We also encourage people to donate before they receive their COVID-19 vaccination or after three days if they remain well. If you have had a side effect, please wait until you are fully recovered before donating.