[1] Univ Fed Fluminense, Lab Vet Bacteriol, Dept Microbiol & Parasitol, Niteroi, RJ, Brazil
[2] Univ Fed Bahia, Dept Prevent Vet Med & Anim Prod, Salvador, BA, Brazil
[3] Brazilian Minist Hlth, Biomanguinhos, Oswaldo Cruz Fdn, Rio De Janeiro, RJ, Brazil
[4] Inst Pasteur, Unite Biol Spirochetes, Natl Reference Ctr, Paris, France
[5] WHO Collaborating Ctr Leptospirosis, Paris, France