The cholera epidemic in Mayotte caused the first death, a 3-year-old child. As of May 6, 58 cases had been identified on the island. The first cases were recorded in mid-March among people returning from neighboring Comoros, where the epidemic is surging with 98 deaths, according to the latest official report. Several oral vaccines have been developed and are recommended by the WHO for areas where cholera is endemic and during epidemics. Interview with Professor Yves Buisson, epidemiologist at the National Academy of Medicine.