One of those south east Asian countries that has succesfully used track and trace is Vietnam.
All the conditions for a serious coronavirus epidemic were there – not least a nine hundred mile land border with China, regularly criss-crossed for trade and travel.
And yet, according to government statisitics, they have had no deaths and only 271 cases.
So how have they done it? There was certainly a quick clampdown on movement.
But because of the lessons of SARS they also had a system of checking in place. It included an App – but crucially in the first instance, it was down to community workers on the
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