“Pfizer, Moderna, Johnson and Johnson, AstraZeneca, none of those have deferral times,” Williamson said. “So if you get it and you’re feeling healthy and well, you can give blood.”

For people who have been vaccinated and want to give blood, the Red Cross asks donors to know which vaccine they received, otherwise there could be a wait.

“The only thing that we’re asking donors to do is to know which type of vaccine they got,” Williamson said. “If you don’t know the vaccine when you show up to give blood, we’ll have to defer you for two weeks.”

He also want’s people to know that giving blood will not affect how well their vaccine works in protecting the body from the coronavirus.

“This vaccine, similar to other vaccines that we’ve had, measles and others that we’ve known, it generates an immune response,” Williamson said. “And your immune system is not impacted by blood donations.”

https://www.live5news.com/2021/03/28/fact-or-fiction-blood-donations-after-getting-your-covid-vaccine/

Why would they want to know which vaccine you got??