"Cross officials said they’ve had to reassure clients that a COVID-19 vaccine, which is injected into muscle or the layer of skin below, doesn’t circulate in the blood." but then contradict with: "While the antibodies that are produced by the stimulated immune system in response to vaccination are found throughout the bloodstream, the actual vaccine components are not". What we are worried about is the spike protein.

Ooh and look: "Less than 10% of the blood we collect does not have antibodies" Interdasting! Does that mean the population has herd immunity? THAT would be breaking news. The tests are done, obviously, and blood donors represent a significant sample of the population.