A British study revealed, yesterday, that a single dose of the Pfizer vaccine against “Covid-19” provides an immune response similar to that resulting from the infection, and can provide protection from new strains for people who have previously been infected with the virus.
And Britain decided in December to extend the period between the two vaccine doses in its vaccination program to up to 12 weeks, as officials say they are confident in their analysis that concluded that the first dose of the Pfizer and AstraZeneca vaccines provides some protection.
The study, conducted by Sheffield and Oxford Universities with the support of the British Association for Coronavirus Immunology, and announced yesterday, concluded that 99% of people develop a strong immune response after a single dose of the Pfizer-Bionic vaccine.
The study focused on medical staff, especially women, who received a single dose of the Pfizer vaccine.
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