Haiti: absence of dengue hemorrhagic fever despite hyperendemic dengue virus transmission.

• DOI: 10.4269/ajtmh.2001.65.180
• Publication Date: 2017-05-10T16:31:18Z
• Authors: S B Halstead; T G Streit; J G Lafontant; R Putvatana; K Russell; W Sun; N Kanesa-Thasan; C G Hayes; D M Watts
• Keywords: Dengue hemorrhagic fever; Attack rate

In 1994-1996, 185 strains of dengue (DEN) virus types 1, 2, and 4 were recovered from febrile United States other Nations military personnel in Haiti. We wondered whether risk factors for hemorrhagic fever (DHF) existed and, if so, DHF cases occurring among Haitian children. Dengue transmission rates studied 210 school children (6-13 years old) resident Carrefour Borough, Port-au-Prince, When sera tested plaque-reduction neutralizing antibodies to DEN 1-4 viruses, nearly 85% had two or more serotypes. The annual rate was estimated at 30%, a observed countries endemic DHE 2 isolates genotype I, which are repeatedly associated with Southeast Asia American regions. Despite positive virologic pre-conditions, not recorded by experienced Port-au-Prince pediatricians. These observations, reminiscent those Africa, provide further evidence resistance gene black populations.