The two vaccines used in South Africa’s vaccination programme, those from Johnson & Johnson and Pfizer/BioNTech, have both been shown to be highly effective against COVID-19, particularly in preventing hospitalisation and death. But protection may wane over time and new variants may or may not render these vaccines less effective. Adele Baleta unpacks what we do and do not know about the potential need for booster shots and surveys some of the studies that will help fill the gaps.
Around one in ten of the over seven million people living with HIV in South Africa are not aware that they have the virus in their bodies. One way to ensure more people are diagnosed more quickly is to make HIV self-tests more widely available. Tiyese Jeranji looks at what HIV Self Testing is, how it is done, and what government policy is on this type of HIV testing.
We know antiretroviral therapy can prevent HIV infection, but can natural biological substances do the same? The results of a recent scientific trial have answered this question: Yes, using broadly neutralising antibodies. But what are broadly neutralising antibodies? How do they work? And when will the average person get access to them? Amy Green breaks down the science.
Local researchers have welcomed impressive phase III findings for the Russian-made Sputnik V vaccine published this week in the Lancet medical journal. It is the sixth COVID-19 vaccine found to be effective in preliminary data from a phase III randomised controlled trial and the fourth to have phase III findings published in a leading medical journal.
Antiretroviral (ARV) injections that may protect women from becoming HIV-positive, if proved to be safe and effective, will be a major step forward in the fight against the HIV pandemic. Siyabonga Kamnqa reports.
Now is not the time to get stuck in complacency and triumphalism over the gains made in the global HIV/Aids response, says former president of the International Aids Society Prof Linda-Gail Bekker.
For World AIDS Day 2017 we asked a number of experts about the state of the global HIV and TB response. Read answers from Glenda Gray, Peter Piot, Stephen Lewis, Gregg Gonsalves, Linda-Gail Bekker, Anele Yawa, Quarraisha Abdool Karim, Robin Gorna, Tim Tucker and Yogan Pillay.