@article{:/content/10.2807/esm.06.02.00222-es, author = "Fisher, I. S.T. and Gill, O N", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.06.02.00222-es", doi = "https://doi.org/" }