One way researchers are studying how to prevent HIV is by using combination antiretroviral therapy (ART) to reduce infectiousness. In other words, using treatment to decrease the chances that someone with HIV will transmit HIV to his or her uninfected partner. This research is particularly important for discordant couples (where one partner is HIV positive and the other is HIV negative).


ZAZI Voluntary Counselling and Testing Centre

PHRU established the ZAZI Voluntary Counselling and Testing (VCT) Centre in order to offer needed VCT services to the residents of Soweto, test new models of VCT and provide a platform for socio-behavioural research, including risk behaviour and perceptions of risk HIV risk and services. As PHRU’s individual and couples VCT centre, ZAZI is also involved in critical research among discordant couples.

In addition to providing a comprehensive package of care to its clients, the ZAZI VCT Centre facilitates early referral to comprehensive clinical and community-based prevention, care and support services and referral to PHRU’s ongoing research studies.

Learn more about the ZAZI VCT Centre.


Clinical Trials and Research

PHRU works with a diverse group of partners to explore a range of HIV prevention strategies, including the use of treatment as prevention.  Learn more about our ongoing clinical trials and research studies.


Health Information

Learn more about treatment as prevention.