Britain's coronavirus crisis could last until Spring 2021 and see 7.9million people hospitalised, a secret briefing for senior NHS figures has revealed. The document, seen by The Guardian newspaper, shows that health chiefs expect the virus to last for another 12 months, and details how it will impact key staff in the NHS, police and fire brigade. It says: 'As many as 80% of the population are expected to be infected with Covid-19 in the next 12 months, and up to 15% (7.9 million people) may require hospitalisation.' It is understood the document was drawn up in recent days by...