England jumped again in the week to Dec. 18, with around 645,800 people, or 1-in-85, estimated to be infected, the Office for National Statistics (ONS) said on Thursday."The percentage of people testing positive has continued to increase sharply in London, the East of England, and the South-East; London now has the highest percentage of people testing positive," the ONS said.Prevalence in the preceding week was 1-in-95, the ONS had estimated.Also Read | Inside the farmer disquiet at Delhi’s doorstepSeparately on Thursday, England's Test and Trace service said it had recorded a 58% week-on-week increase in the number of positive Covid-19 cases detected.It said during the week Dec.