
Is the lockdown flattening the covid-19 pandemic?
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Health minister Dr Zweli Mhkize says South Africa has so far managed to stave off the explosion of Covid-19 cases. But scientists are grappling with the question of how to accurately measure the impact of the disease in terms of the reality on the ground. And on line is Wits university professor of Vaccinology, professor Sabir Madhi.