It is one theory, but things are not completely clear: https://en.wikipedia.org/wiki/History_of_syphilis#Origin https://en.wikipedia.org/wiki/History_of_syphili

It is one theory, but things are not completely clear: https://en.wikipedia.org/wiki/History_of_syphilis#Origin https://en.wikipedia.org/wiki/History_of_syphilis#Origin