Investigation of a pertussis outbreak and comparison of two acellular booster pertussis vaccines in a junior school in South East England, 2019 Tessier, Elise and Campbell, Helen and Ribeiro, Sonia and Andrews, Nick and Stowe, Julia and Nicholls, Margot and Morgan, Jaime and Litt, David and Fry, Norman K and Amirthalingam, Gayatri, Eurosurveillance, 26, 2000244 (2021), https://doi.org/10.2807/1560-7917.ES.2021.26.12.2000244