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An evidence-based theory of change for reducing SARS-CoV-2 transmission in reopened schools

Research output: Contribution to specialist publicationArticle

Chris Bonell, GJ Melendez-Torres, Russell Viner, Brooke Rogers, Michael Whitworth, Harry Rutter, James Rubin, George Patton

Original languageEnglish
Publication statusPublished - 14 Jul 2020


King's Authors


Schools have closed worldwide as part of measures to prevent SARS-CoV-2 transmission but are beginning to reopen in some countries. Various measures are being pursued to minimise transmission but existing guidance has not developed a comprehensive framework or theory of change. We present a framework informed by the occupational health hierarchy of control and a theory of change informed by realist approaches. We present measures focused on elimination, substitution, engineering, administration, education and personal protective equipment. We theorise that such measures offer a means of disrupting SARS-CoV-2 transmission via routes involving fomites, faeco-oral routes, droplets and aerosols.

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