Dendrogram deduced from cluster analysis of the 99 isolates obtained from Bégin Military Hospital, Saint Mandé, France (Bégin); CEB; and the Collection de l'Institut Pasteur (CIP). n.d., not determined; n.a., not applicable; u, unknown (see also Materials and Methods); AQ, Aquitaine; BR, Bretagne; IDF, Ile de France; LO, Lorraine; MP, Midi-Pyrénées; BN, Basse Normandie; PACA, Provence-Alpes-Côte d'Azur; RA, Rhône-Alpes.