Luke Davis, 29, who has previously denied the offence, will appear at Worcester Crown Court on November 24 for a plea hearing.
On Tuesday, West Mercia Police said the alleged offending relates to one victim, though detectives want to hear from anyone who is concerned they have received sexual services offered via various social media platforms and/or visited adult parties in Lyndholm Road, Kidderminster.
The sexual services may have been offered under an alias, such as a 26-year-old bisexual named Naomi, police said.
Davis, of George Street, Kidderminster, pleaded not guilty to the offence at Worcester Magistrates' Court on June 6 and appeared at Worcester Crown Court on July 11.
Superintendent Mel Paley said: "We acknowledge people may be concerned about this case.
"In publicising it we have taken careful consideration to ensure the right balance between protection of the public and protection of the defendant's rights to a fair trial.
"If you are concerned there are several ways you can contact the investigation team or seek support."
Police said the risk of transmission of HIV remains low but has encouraged anyone who believes they may have HIV or any other sexually transmitted infection to have a test.
Anyone who feels they may be affected should call 101, ask for West Mercia Police and tell the call handler they wish to make a report in relation to Operation Origin, the force said.
Investigators can also be contacted by emailing email@example.com while a third-party report can be made by a sexual health service provider, which should reference Operation Origin.