Discordant Couples (DISCO) Cohort
A multi-national, clinical trials readiness cohort of HIV sero-discordant couples (known as the DISCO Cohort), administered by the CAPT Network in collaboration with the Canadian HIV Trials Network. Participants will be recruited from CAPT Network affiliated HIV clinics, community testing units and perinatal clinics. As clinical trials come on stream, the database will be used to identify those who may be eligible to volunteer for CAPT Network studies. These HIV discordant couples will be offered enrolment.