Why is one dose of the Johnson&Johnson vaccine enough?

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#vaccinefacts – Part 12 Why is one dose of the Johnson&Johnson vaccine enough?

Infectologist Prof. Marylyn Addo from the Medical Center Hamburg-Eppendorf (UKE) explains that it is not all that unusual for some vaccines to only be administered once, like the flu vaccines. Early studies with the Johnson&Johnson vaccine showed that just one dose already led to a large number of certain antibodies in the blood.