“With nearly 60% of the eligible U.S. population fully vaccinated, most of the nation’s blood supply is now coming from donors who have been inoculated, experts said. That’s led some patients who are skeptical of the shots to demand transfusions only from the unvaccinated.”
“…outside of research studies, blood centers in the U.S. don’t retain data noting whether donors have been infected with or vaccinated against covid, and there’s no federal requirement that collected blood products be identified in that manner.”
“People who require transfusions also may donate their own blood in advance or request donations from designated friends and family members.”
Source: Kaiser Health News