October 26, 2021

The Queens County Citizen

Complete Canadian News World

Kovid: How Pfizer and Astrogene’s defense weakens over the months

Kovid: How Pfizer and Astrogene's defense weakens over the months
  • Michelle Roberts
  • Health Publisher, BBC News Online

Photo credit, Fat camera

Researchers say the vaccine reduces protection against Kovid-19 infections in people who receive two doses.

A study conducted in the UK using factual data examines the positive PCR results between May and July 2021 in more than one million people who received two doses of the Pfizer or AstraZeneca vaccine.

Pfizer increased protection from 88% in one month to 74% in five to six months after two doses. For estrogenica, it decreases from 77% to 67% in four to five months.

Especially to read on BBC Africa: