A booster shot with the vaccine from Pfizer/BioNTech ensures that protection against Covid-19 is complete again, both companies say based on an extensive study.
A third vaccine shot is 95.6 percent effective against the coronavirus, and the conclusion is after research among 10,000 people aged 16 and older. They received the booster shot on average 11 months after their second vaccination. The mean age was 53 years.
The data can help regulators decide for which groups the boosters should be used. In Israel, for example, it has been decided to make it available to virtually everyone. In contrast, in the US and Europe, it has often been decided to only administer the booster to the elderly and other risk groups.
Last week, the World Health Organization (WHO) recommended offering a third dose of approved vaccines to people with lowered resistance.
Other research from the Israeli research institute Clalit and Harvard University shows that young adults who have received two doses of the Pfizer/BioNTech vaccine are up to 90 percent less likely to be infected.
