Retrospective cohort study investigating extent of pertussis transmission during a boarding school outbreak, England, December 2017 to June 2018 Edmunds, Matt and Mearkle, Rachel and Folliard, Jennifer and Anderson, Charlotte and Balasegaram, Sooria and Chandra, Nastassya and Sawyer, Clare and Fry, Norman K and Ribeiro, Sonia and Palmer, Gemma and Morgan, Michael and Underhill, Gill and Ahmad, Nusreen and Friar, Simon and Charlett, Andre and Litt, David and Brown, Colin S and Amirthalingam, Gayatri, Eurosurveillance, 26, 1900736 (2021), https://doi.org/10.2807/1560-7917.ES.2021.26.26.1900736