Tracking Changes in Mobility Before and After the First SARS-CoV-2 Vaccination Using Global Positioning System Data in England and Wales (Virus Watch): Prospective Observational Community Cohort Study

Vincent Nguyen   ^{1, 2} , MPhil ;   Yunzhe Liu   ³ , PhD ;   Richard Mumford   ⁴ , BSc ;   Benjamin Flanagan   ⁴ , BSc ;   Parth Patel   ¹ , MBBS ;   Isobel Braithwaite   ¹ , MBBS ;   Madhumita Shrotri   ¹ , MBBS ;   Thomas Byrne   ¹ , MPhil, MPH ;   Sarah Beale   ^{1, 2} , MPhil, MSc ;   Anna Aryee   ¹ , MBBS ;   Wing Lam Erica Fong   ¹ , MSc ;   Ellen Fragaszy   ^{1, 5} , PhD ;   Cyril Geismar   ^{1, 2} , MSc ;   Annalan M D Navaratnam   ^{1, 2} , MBBS ;   Pia Hardelid   ⁶ , PhD ;   Jana Kovar   ² , PhD ;   Addy Pope   ⁴ , PhD ;   Tao Cheng   ³ , PhD ;   Andrew Hayward   ² , MD, MBBS ;   Robert Aldridge   ¹ , PhD, MBBS, MEng ;   Virus Watch Collaborative   ⁷

¹ Centre for Public Health Data Science, Institute of Health Informatics, University College London, London, United Kingdom

² Institute of Epidemiology and Health Care, University College London, London, United Kingdom

³ SpaceTimeLab, Department of Civil, Environmental and Geomatic Engineering, University College London, London, United Kingdom

⁴ Technical Research Department, Esri, Edinburgh, United Kingdom

⁵ Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom

⁶ Department of Population, Policy and Practice, University College London Great Ormond Street Institute of Child Health, London, United Kingdom

⁷ See Acknowledgements, London, United Kingdom