Also Read | How rural schooling is going into the darkHealth Secretary Matt Hancock warned on Monday that London had seen a "sharp rise" in daily cases and hospital admissions."This action is absolutely essential, not just to keep people safe but because we have seen early action can prevent more damage and longer-term problems later," he told parliament.Cases were doubling every seven days in some areas, he said, sounding a more downbeat note after hopes of a breakthrough were raised last week with the start of a vaccination programme.Concerns have also been raised about higher rates of infection among secondary school children aged 11-18, leading to increased testing in the worst-hit areas in and around London.England only emerged from a.