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Scientists are warning there could be a second wave of Coronavirus twice as bad as the first unless the government significantly improves its testing and tracing systems by the time schools reopen in September. Dr David Nabarro, the WHO's special envoy on Covid-19, told Mishal Husain: "This virus is capable of surging back really quickly and is actually doing so in most countries where there's been success at getting it under control and, as it surges back, the way you stop outbreaks developing is through having well-functioning contact tracing linked to testing, with isolation of people who've got symptoms or who've been in contact." He added that if 鈥渢his testing and tracing and isolation just is not done properly, then you get very bad surges occurring and this will lead to economic challenges." With Dr Jasmina Panovska-Griffiths, lecturer in Mathematical Modelling at University College London and in Applied Mathematics at Queen鈥檚 College, Oxford University, lead researcher for the study.

Credit: Press Association