It’s not clear why the man wanted so many vaccinations or how he obtained them.
Schober and the team compared the man’s immune responses—measured by his blood antibody levels, the first line of defense against a virus, and T cell levels, which are responsible for the body’s longer-term response—to those of a control group of 29 people who had received three COVID-19 shots.
“His immune system was neither positively nor negatively affected," says Schober.
I fixed the article. Somebody accidentally added a bunch of crap that provided no meaningful information.