4 hours agoThe second dose of Pfizer COVID-19 produces more antibodies if taken in 3 months
Periskopi(5 years ago)
(5 years ago)The COVID-19 vaccine generates three-and-a-half times the response of antibodies to older people when a second dose is delayed about 12 weeks after the first, a British study said. The published study Friday is the first to directly compare Pfizer's immune answers to the three-week execution interval [...]
The published study Friday is the first to directly compare Pfizer's immune answers from the three-week dose interval tested in clinical trials.
After Britain decided to extend the interval between doses, Pfizer and vaccine partner BioNTech said there was no data to support that.
“Our study shows that the reactions of the rush of antibodies after the second Pfizer vaccine have increased significantly to older people when it is delayed in 12 weeks,” said Helen Parry, an author of the study based on Birmingham University.
Britain began preparing Pfizer's vaccine before changing the motion policy, meaning that a small number of people who took the first dose later received the second dose three weeks later.
The study, which has not yet been revised by colleagues, examined 175 people between 80 and 99 and found that the extension of the second dose interval in 12 weeks increased the response of the antibodies 3.5 times compared with those who had received the dose in three weeks.
