The mutated form of coronavirus known as ‘Delta Plus’ is continuing its spread across England.
The strain, officially named AY.4.2, spreads more easily than other variants and officials designated it a ‘variant under investigation’ on 20 October.
Scientists are still working out whether it is more transmissible or whether there are other factors helping it to spread.
Vaccines are proving as effective against Delta Plus as they are against other Delta variants, two separate studies have found.
And there is “no evidence of increased severity based on risk of hospitalisation or death”, the UK Health Security Agency (UKHSA) has said.
Preliminary findings from the Wellcome Sanger Institute, one of the research bodies that works with the UKHSA, show potential hotspots for the variant.
It analysed more than 36,000 positive Covid-19 tests from the week to 13 November.
Here are the Delta Plus figures from the Wellcome Institute latest data for every part of Greater Manchester:
Bolton: 24 cases detected = 10.7% of samples tested
Bury: 22 cases detected = 24.4% of samples tested
Manchester: 32 cases detected = 15% of samples tested
Oldham: 11 cases detected = 11.5% of samples tested
Rochdale: 33 cases = 16.3% of samples tested
Salford: 11 cases detected = 9.6% of samples tested
Stockport: 24 cases detected = 13.5% of samples tested
Tameside: 39 cases detected = 23.4% of samples tested
Trafford: 11 cases detected = 7.4% of samples tested
Wigan: 22 cases detected = 8.9% of samples tested.