[1] CHU Angers, Grp Etud Interact Hote Pathogene, F-49033 Angers 01, France
[2] Univ Angers, Grp Etud Interact Hote Pathogene, Angers, France
[3] Ctr Diagnost & Traitement Ulcere Buruli, Benin, Nigeria
[4] Fdn Raoul Follereau, Paris, France
[5] Inst Pasteur, Unite Epidemiol Malad Emergentes, Paris, France
[6] Univ Paris 06, Fac Med, Paris, France
[7] Swiss Trop & Publ Hlth Inst, Basel, Switzerland
[8] Univ Basel, Basel, Switzerland