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Postintervention Immunological and Entomological Survey of Lymphatic Filariasis in the City of Olinda, Brazil, 2015-2016.
Ramesh, Anita; Oliveira, Paula; Cameron, Mary; Castanha, Priscila M S; Walker, Thomas; Lenhart, Audrey; Impoinvil, Lucy; Alexander, Neal; Medeiros, Zulma; Sá, André; Rocha, Abraham; Souza, Wayner V; Maciel, Amélia; Braga, Cynthia.
Afiliación
  • Ramesh A; Department of Parasitology, Instituto Aggeu Magalhães/Fundação Oswaldo Cruz (FIOCRUZ), Recife, Brazil.
  • Oliveira P; Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom.
  • Cameron M; National Reference Service for Lymphatic Filariasis, Department of Parasitology, Instituto Aggeu Magalhães/FIOCRUZ, Recife, Brazil.
  • Castanha PMS; Department of Disease Control, London School of Hygiene & Tropical Medicine, London, United Kingdom.
  • Walker T; Faculty of Medical Science, University of Pernambuco, Recife, Brazil.
  • Lenhart A; School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.
  • Impoinvil L; Department of Disease Control, London School of Hygiene & Tropical Medicine, London, United Kingdom.
  • Alexander N; School of Life Sciences, The University of Warwick, Coventry, United Kingdom.
  • Medeiros Z; Entomology Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia.
  • Sá A; Entomology Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia.
  • Rocha A; Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom.
  • Souza WV; Department of Parasitology, Instituto Aggeu Magalhães/Fundação Oswaldo Cruz (FIOCRUZ), Recife, Brazil.
  • Maciel A; Collective Health Department, Instituto Aggeu Magalhães/FIOCRUZ.
  • Braga C; National Reference Service for Lymphatic Filariasis, Department of Parasitology, Instituto Aggeu Magalhães/FIOCRUZ, Recife, Brazil.
Am J Trop Med Hyg ; 110(3): 470-482, 2024 Mar 06.
Article en En | MEDLINE | ID: mdl-38350158
ABSTRACT
Lymphatic filariasis (LF) is a leading cause of disability due to infectious disease worldwide. The Recife Metropolitan Region (RMR) is the only remaining focus of LF in Brazil, where the parasite Wuchereria bancrofti is transmitted solely by the mosquito Culex quinquefasciatus. This study reports the results of transmission assessment surveys and molecular xenomonitoring in the city of Olinda, RMR, after nearly 15 years (2015-2016) of interventions for LF elimination. Participants were screened for W. bancrofti antigen via immunochromatographic card tests (ICT) in 1) door-to-door surveys conducted for all children aged 5-7 years from 4 out of 17 intervention areas treated with at least five annual doses of mass drug administration (MDA), and 2) a two-stage cluster sampling survey of residents aged 5 years and older in non-MDA areas. Mosquitoes were collected via handheld aspirators in four MDA areas, differentiated by species, sex, and physiological status, pooled into groups of up to 10 blood-fed, semigravid, and gravid mosquitoes, and screened for W. bancrofti infection by real-time quantitative polymerase chain reaction (RT-qPCR). All 1,170 children from MDA areas and the entire population sample of 990 residents in non-MDA areas were ICT negative. In MDA areas, a total of 3,152 female Cx. quinquefasciatus mosquitoes in 277 households (range, 0-296 mosquitoes per house) were collected via aspiration. RT-qPCR of 233 pools of mosquitos were negative for W. bancrofti RNA; an independent reference laboratory confirmed these results. These results provide evidence that LF transmission has been halted in this setting.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filariasis Linfática / Culex / Culicidae Límite: Animals / Child / Female / Humans País/Región como asunto: America do sul / Brasil Idioma: En Revista: Am J Trop Med Hyg Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filariasis Linfática / Culex / Culicidae Límite: Animals / Child / Female / Humans País/Región como asunto: America do sul / Brasil Idioma: En Revista: Am J Trop Med Hyg Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos