Combination vaccines against Covid-19 tested

Immune response stronger than after two doses of AstraZeneca vaccine - People under the age of 60 who initially received a vaccine from AstraZeneca should be given an mRNA vaccine at their second appointment. This is recommended by the German Standing Committee on Vaccination. However, up until now, there were no data available to indicate to what extent the human organism would react to such a combined vaccination and start to form antibodies. A team of researchers has now proven that the antibody response is much stronger with the combination vaccine than with two doses of the AstraZeneca vaccine. Researchers at Technische Universität München (TUM), Helmholtz Zentrum München, Universitätsklinikum Erlangen and Universitätsklinikum Köln have now investigated immune response of combination vaccines within the framework of a retrospective scientific study. They took blood samples from 500 people who received a second vaccination with the mRNA vaccine from BioNTech/Pfizer nine weeks after their first AstraZeneca vaccine. The result: The neutralising antibody response was much higher in these people than in those who had received two doses of the AstraZeneca vaccine.