Scientists have studied the immune system of a man in Germany who claims to have received 217 Covid-19 vaccines.
The researchers were concerned that the man’s immune system might have become exhausted with such frequent and numerous challenges with vaccines against the same virus, but actually found the opposite.
Their analysis published in the journal Lancet Infectious Diseases found that not only did the man, 62, have a fully functional immune system, there were indicators that his immunity against the virus that causes Covid-19 was better than people who had just received a normal number of vaccines.
There is official evidence of the man having 134 Covid-19 vaccines of eight different types including mRNA vaccines over a 9 month period, although the man claims the amount to be 217 in total over 29 months.
It is not known why he chose to have so many vaccines.
Initially the public prosecutor in the City of Magdeburg where the man lived had opened a fraud investigation into the man but never ultimately filed charges.
The scientists found the man through newspaper reports and approached him to see whether he would be happy to be studied.