direct to your inboxInfection rates have increased in four of Greater Manchester's boroughs, yet all ten areas still have lower rates than the national average.Rochdale, Oldham, Salford and Trafford all recorded an increase in cases in the seven says leading up to December 14, the latest Government figures show.The infection rate is expressed per 100,000 people and is updated each day by Public Health England (PHE).The average rate for England continues to rise with a rate of 239.1 per 100,000,