@article{:/content/10.2807/esm.11.06.00630-es, author = "Lyytikäinen, O and Nakari, U M and Lukinmaa, S and Kela, E and Nguyen Tran Minh, N and Siitonen, A", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.11.06.00630-es", doi = "https://doi.org/" }