According to company data, the booster with Biontech and Pfizer’s Corona vaccine adapted to BA.4/BA.5 is significantly more effective against the Omicron variant than the original vaccine.
New data from an ongoing clinical trial showed an increase in neutralizing antibodies in the over-55 age group of about fourfold compared to people vaccinated with Biontech/Pfizer’s original Corona vaccine.
Study on booster vaccination with Corona vaccine adapted to BA.4/BA.5
Both measurements were reportedly obtained one month after the booster. Compared with the values before booster vaccination, a 9.5-fold increase in so-called antibody titers was found in the group of 18- to 55-year-olds one month after this vaccination. In the over-55 group, there was a 13.2-fold increase. Both vaccines showed comparable safety and tolerability, the companies said.
Blood from dozens of people was tested for the study. Biontech/Pfizer’s BA.4/BA.5 booster has been approved in the EU since mid-September. It contains active ingredients against the original Corona variant and the omicron BA.4/BA.5 sublines.
- source: vienna.at/picture: pixabay.com
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