- Patient referral: the index patient informs the partner/s of their risk and encourages them to undertake HIV testing and/or HIV prophylaxis, if appropriate.
- Provider referral: a healthcare provider informs the partner/s of their risk of HIV whilst maintaining the confidentiality of the index person and encourages the partner/s to undertake HIV testing.
- Conditional referral: a combination of the previous two strategies where the index person agrees to contact partner/s within a specific time period and if unable to complete this, the healthcare provider takes on the responsibility.