The government has postponed a planned easing of England’s lockdown on Saturday amid a rise in the prevalence of coronavirus in the community.The announcement was made after tightened lockdown measures were imposed on Greater Manchester and other areas in the north from midnight on Friday.But it appears the whole country wasn’t ready for the next stages of lockdown as the R rate - the average number of people that an infected person passes the virus on to - has crept up.The government's