@article{:/content/10.2807/esm.09.04.00462-es, author = "Ciofi Degli Atti, M L and Filia, A and Revello, M G and Buffolano, W and Salmaso, S", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.09.04.00462-es", doi = "https://doi.org/" }