Novel application of the matched case–control design to compare food supply chains during an Escherichia coli O157 outbreak, United Kingdom, 2016 Inns, Thomas and Cleary, Paul and Bundle, Nick and Foulkes, Sarah and Sharp, Ashley and Utsi, Lara and McBrien, Chris and Teagle, Rehman and Waldram, Alison and Williams, Chris and McCann, Cathy and Smith, Rob and Saleh, Sepeedeh and McCarthy, Noel and Vivancos, Roberto and Hawker, Jeremy and Decraene, Valerie, Eurosurveillance, 23, 17-00195 (2018), https://doi.org/10.2807/1560-7917.ES.2018.23.18.17-00195