A warning not to intervene too soon when it comes to measures to limit Covid-19.
Cambridge University lecturer and Naked Scientists podcast host, Chris Smith, told Mike Hosking calls for schools to shut because the same has happened overseas are copycat politics.
He says places that are shutting schools, like Scotland and Wales, have many more cases.
Smith says if you intervene too soon, people might not comply, there are big economic impacts and there's a risk of mass hysteria.
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