| [poliomyelitis outbreak caused by vaccine-derived virus in haiti and the dominican republic]. | in october 2000, the ministries of health of the dominican republic and haiti notified two cases of acute flaccid paralysis (afp) in rural areas, one of them in a 9-month-old female, and the other in a 2-year-old female, respectively. stool samples that were obtained from these cases, which occurred in july and august 2000, after a 9-year interruption of wild poliovirus circulation in the western hemisphere, revealed the presence of type 1 poliovirus. genetic sequencing, which was later performe ... | 2001 | 11418973 |