As the U.K. introduces more restrictions to stem the spread of Covid-19, why are there such marked regional differences in the infection rate?

Contributors:

Greg Fell, Director of Public Health, Sheffield City Council

Wendy Burke, Director of Public Health, North Tyneside Council

Dr Susanna Currie, Clinical Director for Cumbria Sexual Health Services at North Cumbria Integrated Care NHS Foundation Trust,

Dame Anne Johnson, Professor of Infectious Disease Epidemiology at University College London

Dr Michael Tildesley, University of Warwick

Producers: Rosamund Jones, Bob Howard and Kirsteen Knight.