David Mangum, 37, told Dexter, Mo., police he had 50 to 60 sexual partners in Stoddard County and more than 300 total he never told about his HIV status, WPSD-TV, Paducah, Ky., reported Thursday.
Mangum said he had unprotected sex with the people, whom he usually met online or in parks, since his HIV diagnosis in 2003.
He "usually only knew his partners' first names," Sgt. Corey Mills told CNN, saying it will make it difficult to track down the potential victims.
Knowingly exposing someone to HIV is considered a felony in Missouri and could bring a prison term of up to 15 years. Infecting someone could draw a life term, CNN said.
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