@article{:/content/10.2807/esm.03.07.00108-es, author = "Niedrig, M and Niklasson, B and Lloyd, G and Schmitz, H and LeGuenno, B", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.03.07.00108-es", doi = "https://doi.org/" }