Current practices for respiratory syncytial virus surveillance across the EU/EEA Member States, 2017 Mollers, Madelief and Barnadas, CĂ©line and Broberg, Eeva K and Penttinen, Pasi and European Influenza Surveillance Network and Teirlinck, Anne C and Fischer, Thea K, Eurosurveillance, 24, 1900157 (2019), https://doi.org/10.2807/1560-7917.ES.2019.24.40.1900157