1. 2011 National Antenatal HIV & Syphilis Prevalence Survey released - Health-e. google.co.za at http://www.google.co.za/search?client = safari&rls = 10_7_4&hl = en-ZA&source = hp&q = http%3A%2F%2Fwww.health-e.org.za%2F2012%2F12%2F11%2F2011-national-antenatal-hiv-syphilis-prevalence-survey-released%2F&gbv = 2&oq = http%3A%2F%2Fwww.health-e.org.za%2F2012%2F12%2F11%2F2011-national-antenatal-hiv-syphilis-prevalence-survey-released%2F&gs_l = heirloom-hp.3…747.747.0.1615.1.1.0.0.0.0.0.0..0.0.msedr…0…1ac.1.34.heirloom-hp..1.0.0.vQOe8rYMO8g
2. Kharsany ABM et al. Trends in HIV prevalence in pregnant women in rural South Africa. J Acquir Immune Defic Syndr. 2015;70:289–95.
3. World AIDS Day Report 2014 | UNAIDS. google.co.za at http://www.google.co.za/search?client = safari&rls = 10_7_4&hl = en-ZA&source = hp&q = http%3A%2F%2Fwww.google.com%2Furl%3Fsa%3Dt%26rct%3Dj%26q%3D%26esrc%3Ds%26source%3Dweb%26cd%3D2%26ved%3D0CDUQFjAB%26url%3Dhttp%253A%252F%252Fwww.unaids.org%252Fen%252Fmedia%252Funaids%252Fcontentassets%252Fdocuments%252Fepidemiology%252F2013%252Fgr2013%252FUNAIDS_Global_Report_2013_en.pdf%26ei%3DzG65VKinOcPXatWFgsAP%26usg%3DAFQjCNH9ox1sW4Af9x61I07_wa_Kqz7_mg%26bvm%3Dbv.83829542%2Cd.d2s&gbv = 2&oq = http%3A%2F%2Fwww.google.com%2Furl%3Fsa%3Dt%26rct%3Dj%26q%3D%26esrc%3Ds%26source%3Dweb%26cd%3D2%26ved%3D0CDUQFjAB%26url%3Dhttp%253A%252F%252Fwww.unaids.org%252Fen%252Fmedia%252Funaids%252Fcontentassets%252Fdocuments%252Fepidemiology%252F2013%252Fgr2013%252FUNAIDS_Global_Report_2013_en.pdf%26ei%3DzG65VKinOcPXatWFgsAP%26usg%3DAFQjCNH9ox1sW4Af9x61I07_wa_Kqz7_mg%26bvm%3Dbv.83829542%2Cd.d2s&gs_l = heirloom-hp.3…337.1569.0.2570.1.1.0.0.0.0.0.0..0.0.msedr…0…1ac.1.34.heirloom-hp..1.0.0.peHgHkvHBYU
4. Nagelkerke NJD et al. The rise and fall of HIV in high-prevalence countries: a challenge for mathematical modeling. PLoS Comput Biol. 2014;10:e1003459.
5. Chen L et al. Sexual risk factors for HIV infection in early and advanced HIV epidemics in sub-Saharan Africa: systematic overview of 68 epidemiological studies. PLoS One. 2007;2:e1001.