Outbreak of legionnaire’s disease in two groups of tourists staying at camp sites in France Infuso, A and Hubert, B and Dumas, D and Reyrolle, M and De Mateo, S and Pelaz, C and Hemery, C and Pérez, I, Eurosurveillance, 2, 157 (1997), https://doi.org/10.2807/esm.02.06.00157-en