Channel 4 News has seen a confidential government report, outlining why factors like social deprivation, financial hardship among those isolating, and failures in the test and trace system, are leading to stubbornly high rates of transmission in some areas of England.
The findings in the reports have led public health and council leaders in one of the worst affected areas to write to Matt Hancock asking him to consider accelerating the vaccine rollout in areas of high transmission.