FIG. 1.

RAPD and ERIC-PCR fingerprints of E. aerogenes strains. The profiles obtained with primers AP12h, ERIC2, and ERIC1R are shown. Lanes 1 and 2, unrelated strains of E. aerogenes used as controls; lanes 3 and 4, the TEM-24b-producing E. aerogenes strain belonging to the clone responsible for the present epidemic in France; lanes 5 to 9, representative TEM-24-producing strains (profile Ea-1); lane 10, TEM-3-producing strain (profile Ea-2); lanes M, molecular weight marker (lambda phage DNA digested with PstI).