Usefulness of the European Epidemic Intelligence Information System in the management of an outbreak of listeriosis, Belgium, 2011., Yde, M, Naranjo M, Mattheus Wesley, Stragier P, Pochet B, Beulens K, De Schrijver K, Van den Branden D, Laisnez Valeska, Flipse W, et al. , Euro Surveill, 20-sep-2012, Volume 17, Issue 38, (2012)