Enterovirus D68 serosurvey: evidence for endemic circulation in the Netherlands, 2006 to 2016 Karelehto, Eveliina and Koen, Gerrit and Benschop, Kimberley and van der Klis, Fiona and Pajkrt, Dasja and Wolthers, Katja, Eurosurveillance, 24, 1800671 (2019), https://doi.org/10.2807/1560-7917.ES.2019.24.35.1800671