As President Cyril Ramaphosa kept the country waiting, and waiting, for his 6pm press conference on Covid-19 on Sunday, political leaders and scientists were debating the utility of closing schools to contain the spread of the coronavirus.

On face value, it seems a good idea. But while modelling by scientists in the UK suggests school closures may slightly reduce the spread of the virus, this doesn’t take into account possible risks and health consequences in a country like SA...

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