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.
Rates of Serious Adverse Events that result in unintended harm to patients are disturbingly high in Gauteng public hospitals. Thabo Molelekwa spoke to health activists and government to see what is at the root of these risks to patient safety and what is done to curb it.