West Allis, Wisconsin, police arrested Waterford resident Jason Taufner, 42, and charged him with six counts of second-degree endangering safety, the Milwaukee Journal Sentinel reported.
Police discovered that Taufner had been HIV positive for at least 12 years.
Taufner reportedly met the six most recent victims while working as a tattoo artist in Milwaukee and West Allis.
One was a repeat client and another a fellow tattoo artist.
One victim told investigators she even lived with the suspect for about a year and at one time confronted him about rumors she heard that he was HIV positive.