Imperial College study notes decline in week to 22 January but fall is slower than in first national lockdown
Cases of coronavirus have started to decline in England but must fall faster to relieve pressure on the NHS, scientists behind a Covid infection survey have warned.
Researchers at Imperial College London analysed more than 160,000 swabs taken between 6 and 22 January and found that while cases fell nationally in the past week the rate was not dropping swiftly enough to reduce strain on the health service.
