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12 weeks between Pfizer jabs increases Covid immune response in over-80s

Delayed second Pfizer COVID-19 shot produces more antibodies: Study

A health-care professional prepares a dose of the Pfizer coronavirus disease (COVID-19) vaccine as high-risk workers receive the first vaccines in the state of Victoria s rollout of the program, in Melbourne, Australia, Feb. 22, 2021. Photo by SANDRA SANDERS /REUTERS Reviews and recommendations are unbiased and products are independently selected. Postmedia may earn an affiliate commission from purchases made through links on this page. Article content LONDON Pfizer’s COVID-19 vaccine generates antibody responses three-and-a-half times larger in older people when a second dose is delayed to 12 weeks after the first, a British study said. The study released on Friday is the first to directly compare immune responses of the Pfizer shot from the three-week dosing interval tested in clinical trials, and the extended 12-week interval that British officials recommend in order to give more vulnerable people at least some protection quickly.

Delay in getting 2nd shot of Pfizer COVID-19 vaccine produces more antibodies: UK study

Delay in getting 2nd shot of Pfizer COVID-19 vaccine produces more antibodies: UK study Our study demonstrates that peak antibody responses after the second Pfizer vaccine are markedly enhanced in older people when this is delayed to 12 weeks, Helen Parry, an author of the study based at the University of Birmingham, said Reuters | May 14, 2021 | Updated 11:12 IST Pfizer s COVID-19 vaccine generates antibody responses three-and-a-half times larger in older people when a second dose is delayed to 12 weeks after the first, a British study said. The study released on Friday is the first to directly compare immune responses of the Pfizer shot from the three-week dosing interval tested in clinical trials, and the extended 12-week interval that British officials recommend in order to give more vulnerable people at least some protection quickly.

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