Researchers at FAU find no negative effects on immune system

Researchers at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen have examined a man who has received more than 200 vaccinations against Covid-19. They learned of his case via newspaper reports. Until now, it has been unclear what affects hypervaccination such as this would have on the immune system. Some scientists were of the opinion that immune cells would become less effective after becoming used to the antigens. This proved not to be the case in the individual in question: his immune system is fully functional. Certain immune cells and antibodies against SARS-CoV-2 are even present in considerably higher concentrations than is the case with people who have only received three vaccinations. The results have been published in the journal Lancet Infectious Diseases.

More than 60 million people in Germany have been vaccinated against SARS-Coronavirus 2, the majority of them several times. The man who has now been examined by researchers at FAU claims to have received 217 vaccinations for private reasons. There is official confirmation for 134 of these vaccinations.

“We learned about his case via newspaper articles,” explains Privatdozent Dr. Kilian Schober from the Institute of Microbiology – Clinical Microbiology, Immunology and Hygiene (director Prof. Dr. Christian Bogdan). “We then contacted him and invited him to undergo various tests in Erlangen. He was very interested in doing so.” Schober and his colleagues wanted to know what consequences hypervaccination such as this would have. How does it alter the immune response?