There is no wait time needed before donating blood if you got the Comirnaty (Pfizer), Spikevax (Moderna), Novavax or Johnson & Johnson (Janssen) vaccine. You will be asked which kind of shot you were given when you go to donate. You should bring your vaccination card to your next blood donation. You can find more information at https://www.redcrossblood.org/donate-blood/dlp/coronavirus--covid-19--and-blood-donation.html.