Protective antibodies in many people begin to disappear about six months after two vaccinations of Pfizer or Astrazeneca vaccines. This conclusion came British scientists from the Zoe Covid Study research project, analyzing over a million positive tests made in May-July of this year. It is reported by the Russian BBC service.
According to the data obtained, Pfizer vaccine a month after the second vaccination gives protection in 88% of cases, after five to six months – only 74%. For the Astrazeneca vaccine, the corresponding figures are 77% and 67%.
Project Lead Specialist Professor Tim Spector is confident that in half a year a booster (reinforcing) vaccination is needed. “The data we received demand from the Government of Action,” he said BBC. – You can not sit and observe how protection is gradually melting. “
At the same time, no less authoritative expert, a member of the Interdepartmental Committee for Vaccination and Immunization Professor of the University of Bristol Adam Finn believes that with the third vaccination is not worth a hurry. According to him, after two vaccinations, people are mainly ill ifing, then in a light form.
In the same spirit, a representative of the European Medical Agency Monica Bustter was spoken. Perhaps additional vaccinations will be needed, but before making a decision, you still need to observe.