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A DEADLY new virus which has killed 17 people in China could already be in the UK, a top expert has warned.

It comes as Heathrow Airport said passengers flying into London from China will be isolated on arrival to check for killer coronavirus.

Chinese state media confirmed 17 people have now died - up from nine earlier today.

Meanwhile official cases soared with more than 470 confirmed, according to the country's National Health Commission.

Professor Neil Ferguson, an expert in mathematical biology at Imperial College London, told reporters today "we can't rule out the possibility" there could already be a case in the UK.