@article{:/content/10.2807/esm.11.06.00633-es, author = "Bille, J and Blanc, D S and Schmid, H and Boubaker, K and Baumgartner, A and Siegrist, H H and Tritten, M L and Lienhard, R and Berner, D and Anderau, R and Treboux, M and Ducommun, J M and Malinverni, R and Genné, D and Erard, P and Waespi, U", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.11.06.00633-es", doi = "https://doi.org/" }