Parts of Newark area see up to 190% increase in coronavirus cases in past week, while parts of Advertiser area see cases fall by as much as half | Updated: 12:32, 23 December 2020 Parts of the Newark area have seen up to a 190% increase in coronavirus cases over the past week. However, parts of the Advertiser area have seen the number of cases fall by as much a half. You can see an area breakdown below. The figures are for the seven-day period to December 17 â the latest public data made available by Public Health England. Public Health England. (43699034)