Publications des scientifiques de l'IRD

Lilioso M., Folly-Ramos E., Rocha F. L., Rabinovich J., Capdevielle Dulac Claire, Harry M., Marcet P. L., Costa J., Almeida C. E. (2017). High Triatoma brasiliensis densities and Trypanosoma cruzi prevalence in domestic and peridomestic habitats in the state of Rio Grande do Norte, Brazil : the source for chagas disease outbreaks ?. American Journal of Tropical Medicine and Hygiene, 96 (6), p. 1456-1459. ISSN 0002-9637.

Titre du document
High Triatoma brasiliensis densities and Trypanosoma cruzi prevalence in domestic and peridomestic habitats in the state of Rio Grande do Norte, Brazil : the source for chagas disease outbreaks ?
Année de publication
2017
Type de document
Article référencé dans le Web of Science WOS:000405659100031
Auteurs
Lilioso M., Folly-Ramos E., Rocha F. L., Rabinovich J., Capdevielle Dulac Claire, Harry M., Marcet P. L., Costa J., Almeida C. E.
Source
American Journal of Tropical Medicine and Hygiene, 2017, 96 (6), p. 1456-1459 ISSN 0002-9637
A total of 2,431 Triatoma brasiliensis were collected from 39 populations of Paraiba (PB) and Rio Grande do Norte (RN) states, Brazil. In PB, Trypanosoma cruzi infection was not detected in either peridomestic or domestic vector populations. In contrast, in RN, T. brasiliensis was detected with high parasite prevalence in these ecotopes (30.7-40.0%). Moreover, peridomicile insect population densities were more than double the average densities of all other settings evaluated (19.17 versus < 8.94 triatomine/man-hour). Genotyped parasites evidenced a mix of T. cruzi lineages circulating in both peridomestic and sylvatic populations. Although vector control efforts have dramatically decreased Chagas disease transmission to humans, recent outbreaks have been detected in four municipalities of RN state. Our results clearly evidence a worrisome proximity between infected vectors and humans in RN. Indeed, finding of infected T. brasiliensis inside homes is routinely recorded by local vector control surveillance staff around the outbreak area, challenging the current and conventional view that vector transmissions are controlled in northeastern Brazil. This scenario calls for strengthening vector control surveillance and interventions to prevent further Chagas transmission, especially in RN State.
Plan de classement
Entomologie médicale / Parasitologie / Virologie [052]
Description Géographique
BRESIL
Localisation
Fonds IRD [F B010070391]
Identifiant IRD
fdi:010070391
Contact