infection rates could be doubling week-on-week within a matter of days if the rise continues. Wigan's infection rate stands at 332 cases per 100,000 people, as of Monday, January 4 - the third highest and the fastest growing infection rate in the 10 boroughs of Greater Manchester.This figure marks a huge 75 per cent rise in the infection rate in comparison to the previous week.The number is also almost twice the growth of infection rate seen on average across England, which saw a 30 per cent increase on the previous week.There are a number of new Covid-19 hotspots in the borough, mainly on its border with Warrington.Wigan's health chief says that the areas 'heating up' are due to the population's ties with other regions.While there is not.