Derrick Nesby mugshot

A Louisiana high school teacher and track coach is being held on $1 million bond after he exposed a 16-year-old male student to the HIV virus during sex, police say.

The NY Daily News reports that Derrick Nesby, 37, was arrested after the Terrebonne Parish Sheriff’s Office learned last month about the teacher’s inappropriate contact with a student, WWL-TV reported.

Nesby had only worked at H.L. Bourgeois High School for about one year prior to his arrest.

“We can establish the fact that there was an encounter that happened,” Terrebonne Parish Sheriff’s Chief of Detectives Malcolm Wolfe told WWL-TV. “We continued our investigation where we established more evidence that something did happen, and at that point we got a warrant for his arrest,” he added.

Nesby, who is still listed on the school’s website as its freshman boys’ track coach, denies the allegations, WWL-TV reports.

Nesby was originally charged with felony carnal knowledge of a juvenile, but investigators upgraded the charges after they learned Nesby has HIV. Authorities added an intentional exposure to HIV charge and doubled Nesby’s bond to $1 million, WWL-TV reported.

Each charge, a felony, carries a maximum sentence of 10 years in prison.

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