The rate is expressed as the number of new cases per 100,000 inhabitants.
While Oldham is still the worst affected area in the region, its rate fell below 400 for the first time since October 14.
At the city’s peak on November 4, the rate reached 800.8 per 100,000 population.
Yet in the seven days leading up to November 21, the rate more than halved to 388.4%.
Indeed, six other districts have seen their infection rate drop by more than half since cases peaked in late October and early November.
Rates are falling most rapidly in Trafford, where the rate has fallen by 50% in one week.
The rounding rate now stands at 170.6, its lowest since September.
The average rate for England is now 208.7 and for Greater Manchester as a whole 276.48.
The latest infection rates for Greater Manchester are:
Oldham 388.4, and the bearish 30 pc
Rochdale 360.6, down 31 pc
Bury 314.1, down 33pc
Bolton 306.4, down 31pc
Wigan 304.6, down 30pc
Salford 260.0, down 42 pc
Manchester 249.6, down 34 pc
Tameside 249.4, down 37pc
Stockport 208.6, down 37 pc
Trafford 170.6, down 50pc
Stockport’s transmission rate also fell below the national average, with a rate of 208.6, 37% lower in the week ending November 21.
Overall, rates are falling faster in each borough of Greater Manchester compared to England as a whole.