Psychological, social, and medical counseling is necessary. Counsellors can help in partner notification. Confidentiality issues are a major concern. Home testing kits are now available. Samples collected at home, sent to a lab, results reported by phone.
Results are completely anonymous.
Anyone who has any reason for concern. Screening the general population is expensive. Because the incidence of infection is low, screening may detect as many false positives as true positives. Convicted sex offenders, including prostitutes. Hospitalized patients to whom health care workers have received a parenteral exposure.