Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/26616
Title: 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?
Authors: Lilioso, Mauricio
Ramos, Elaine Folly
Rocha, Fabiana Lopes
Rabinovich, Jorge
Capdevielle-Dulac, Claire
Harry, Myriam
Marcet, Paula L.
Costa, Jane
Almeida, Carlos Eduardo
Affilliation: Universidade Federal da Paraíba. Programa de Pós-Graduação em Ecologia e Monitoramento Ambiental. João Pessoa, PB, Brasil.
Universidade Federal da Paraíba. Programa de Pós-Graduação em Ecologia e Monitoramento Ambiental. João Pessoa, PB, Brasil.
Universidade Federal da Paraíba. Programa de Pós-Graduação em Ecologia e Monitoramento Ambiental. João Pessoa, PB, Brasil.
Universidad Nacional de La Plata. Centro de Estudios Parasitológicos y de Vectores. La Plata, Argentina.
UMR Evolution, Génomes, Comportement, Ecologie. CNRS-IRD-Univ. Paris-Sud. Université Paris Saclay, Paris, France.
UMR Evolution, Génomes, Comportement, Ecologie. CNRS-IRD-Univ. Paris-Sud. Université Paris Saclay, Paris, France.
Centers for Disease Control and Prevention. Division of Parasitic Diseases and Malaria. Atlanta, Georgia, USA.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biodiversidade Entomológica. Rio de Janeiro, RJ. Brasil.
Universidade Federal da Paraíba. Programa de Pós-Graduação em Ecologia e Monitoramento Ambiental. João Pessoa, PB, Brasil / Universidade Estadual de Campinas. Campinas, SP, Brasil.
Abstract: AbstractA total of 2,431 Triatoma brasiliensis were collected from 39 populations of Paraíba (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.
Keywords: Trypanosoma cruzi
Triatoma brasiliensis
Chagas Disease
outbreak
Brazil
Rio Grande do Norte
Domestic and Peridomestic Habitats
keywords: Trypanosoma cruzi
Triatoma brasiliensis
Doença de Chagas
Surto de doenças
Rio Grande do Norte
Habitats Domésticos e Peridomésticos
Issue Date: 2017
Publisher: American Journal of Tropical Medicine and Hygiene
Citation: LILIOSO, Maurício; et al. 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?. Am. J. Trop. Med. Hyg., v.96, n.6, p.1456-1459, 2017.
DOI: 10.4269/ajtmh.16-0823
ISSN: 0002-9637
Copyright: restricted access
Appears in Collections:IOC - Artigos de Periódicos

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