@article{:/content/10.2807/esm.04.11.00059-es, author = "van Steenbergen, J. E. and Slijkerman, F. A.N. and Speelman, P", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.04.11.00059-es", doi = "https://doi.org/" }