@article{:/content/10.2807/esm.10.06.00546-es, author = "Kokki, M and Holmström, P and Ruutu, P", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.10.06.00546-es", doi = "https://doi.org/" }