Large outbreak of mumps virus genotype G among vaccinated students in Norway, 2015 to 2016 Veneti, Lamprini and Borgen, Katrine and Borge, Kaja Sverdrup and Danis, Kostas and Greve-Isdahl, Margrethe and Konsmo, Kirsten and Njølstad, Gro and Nordbø, Svein Arne and Øystese, Kari Stidal and Rykkvin, Rikard and Sagvik, Eli and Riise, Øystein Rolandsen, Eurosurveillance, 23, 1700642 (2018), https://doi.org/10.2807/1560-7917.ES.2018.23.38.1700642