An unusual outbreak of norovirus associated with a Halloween-themed swimming pool party in England, 2016
Paranthaman, Karthik and Pringle, Ellen and Burgess, Alison and Macdonald, Neil and Sedgwick, James, Eurosurveillance, 23, 1700773 (2018), https://doi.org/10.2807/1560-7917.ES.2018.23.44.1700773