Delaying second Pfizer vaccines to 12 weeks significantly increases antibody responses in elderly people, finds study
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14 May 2021Delaying second Pfizer vaccines to 12 weeks significantly increases antibody responses in elderly people, finds study
Antibody response in people aged over 80 is three-and-a-half times greater in those who have the second dose of the Pfizer COVID-19 vaccine after 12 weeks compared to those who have it at a three-week interval, finds a new study led by the University of Birmingham in collaboration with Public Health England.
