George Floyd's lawyer: a 'pandemic of racism' led to death

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Friends and family of George Floyd pay tribute at his memorial service in Minneapolis. As the death toll from the Covid-19 pandemic reaches just over 34 thousand in Brazil - we'll look at why the conditions are right for a vaccination trial to take place there. And how flawed data about coronavirus patients and the use of the anti-malarial drug - hydroxychloroquine - led the World Health Organisation to halt clinical trials of the drug. A decision it has since reversed.