The mayor of Greater Manchester has spelled out how he believes tighter coronavirus measures should be lifted across the city-region.Andy Burnham has called for an end to ‘crude blanket restrictions’ that are becoming ‘less effective’ despite initially helping to stop rising infection rates.A ‘more sophisticated’ exit strategy which puts local leaders at the heart of decision-making has been proposed, with Mr Burnham arguing that they are better placed to know when to impose tougher restrictions