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Id: biblio-829256
Autor: Adde, Antoine; Dusfour, Isabelle; Roux, Emmanuel; Girod, Romain; Briolant, Sébastien.
Título: Anopheles fauna of coastal Cayenne, French Guiana: modelling and mapping of species presence using remotely sensed land cover data
Fonte: Mem. Inst. Oswaldo Cruz;111(12):750-756, Dec. 2016. tab, graf.
Idioma: en.
Projeto: CNES-DGA-MRIS; . Agence Nationale de la Recherche; . European commission.
Resumo: Little is known about the Anopheles species of the coastal areas of French Guiana, or their spatiotemporal distribution or environmental determinants. The present study aimed to (1) document the distribution of Anopheles fauna in the coastal area around Cayenne, and (2) investigate the use of remotely sensed land cover data as proxies of Anopheles presence. To characterise the Anopheles fauna, we combined the findings of two entomological surveys that were conducted during the period 2007-2009 and in 2014 at 37 sites. Satellite imagery data were processed to extract land cover variables potentially related to Anopheles ecology. Based on these data, a methodology was formed to estimate a statistical predictive model of the spatial-seasonal variations in the presence of Anopheles in the Cayenne region. Two Anopheles species, known as main malaria vectors in South America, were identified, including the more dominant An. aquasalis near town and rural sites, and An. darlingi only found in inland sites. Furthermore, a cross-validated model of An. aquasalis presence that integrated marsh and forest surface area was extrapolated to generate predictive maps. The present study supports the use of satellite imagery by health authorities for the surveillance of malaria vectors and planning of control strategies.
Descritores: Anopheles/classificação
Insetos Vetores/classificação
-Guiana Francesa
Malária/transmissão
Densidade Demográfica
Imagens de Satélites
Estações do Ano
Análise Espaço-Temporal
Limites: Animais
Responsável: BR1.1 - BIREME


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Id: lil-794724
Autor: Vezenegho, Samuel B; Adde, Antoine; Santi, Vincent Pommier de; Issaly, Jean; Carinci, Romuald; Gaborit, Pascal; Dusfour, Isabelle; Girod, Romain; Briolant, Sébastien.
Título: High malaria transmission in a forested malaria focus in French Guiana: How can exophagic Anopheles darlingi thwart vector control and prevention measures?
Fonte: Mem. Inst. Oswaldo Cruz;111(9):561-569, Sept. 2016. tab, graf.
Idioma: en.
Projeto: ARS; . ARS; . French Army; . Agence Nationale de la Recherche; . European commission.
Resumo: In French Guiana, malaria vector control and prevention relies on indoor residual spraying and distribution of long lasting insecticidal nets. These measures are based on solid epidemiological evidence but reveal a poor understanding of the vector. The current study investigated the behaviour of both vectors and humans in relation to the ongoing prevention strategies. In 2012 and 2013, Anopheles mosquitoes were sampled outdoors at different seasons and in various time slots. The collected mosquitoes were identified and screened for Plasmodium infection. Data on human behaviour and malaria episodes were obtained from an interview. A total of 3,135 Anopheles mosquitoes were collected, of which Anopheles darlingi was the predominant species (96.2%). For the December 2012-February 2013 period, the Plasmodium vivax infection rate for An. darlingi was 7.8%, and the entomological inoculation rate was 35.7 infective bites per person per three-month span. In spite of high bednet usage (95.7%) in 2012 and 2013, 52.2% and 37.0% of the participants, respectively, had at least one malaria episode. An. darlingi displayed heterogeneous biting behaviour that peaked between 20:30 and 22:30; however, 27.6% of the inhabitants were not yet protected by bednets by 21:30. The use of additional individual and collective protective measures is required to limit exposure to infective mosquito bites and reduce vector densities.
Descritores: Anopheles/fisiologia
Mordeduras e Picadas de Insetos
Insetos Vetores/fisiologia
-Anopheles/classificação
Anopheles/parasitologia
Florestas
Guiana Francesa
Insetos Vetores/classificação
Insetos Vetores/parasitologia
Malária Falciparum/transmissão
Malária Vivax/transmissão
Densidade Demográfica
Estações do Ano
Especificidade da Espécie
Limites: Seres Humanos
Animais
Feminino
Responsável: BR1.1 - BIREME


  3 / 26 LILACS  
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Id: lil-773439
Autor: Daniel-Ribeiro, Cláudio Tadeu; Roussilhon, Christian.
Título: On frogs, toxins and true friendship: an atypical case report
Fonte: J. venom. anim. toxins incl. trop. dis;22:3, 2016. graf.
Idioma: en.
Resumo: Abstract The authors report a series of events including the scientific interest for poisonous dendrobates of French Guiana, the human confrontation with the immensity of the evergreen rainforest, the fragility of the best-prepared individuals to a rough life, and the unique and very special manifestation of a solid friendship between two experts and enthusiasts of outdoor life. In the evergreen forest of South America, as in many other scientific field expeditions, everything may suddenly go wrong, and nothing can prepare researchers to accidents that may occur in a succession of uncontrollable errors once the first mistake is done. This is what happened during an expedition in search for dendrobates by an experienced forest guide and naturalist. The authors decided to report the story, considering that it deserved to be brought to the attention of those interested in venomous animals and toxins, in order to illustrate the potential danger of dealing with these organisms.
Descritores: Venenos de Anfíbios/toxicidade
Amigos
-Anuros
Exposição Ambiental
Florestas
Guiana Francesa
Limites: Animais
Tipo de Publ: Relatos de Casos
Responsável: BR1.1 - BIREME


  4 / 26 LILACS  
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Id: lil-759495
Autor: Parriault, Marie-Claire; van Melle, Astrid; Basurko, Célia; Gaubert-Marechal, Emilie; Macena, Raimunda Hermelinda Maia; Rogier, Stéphanie; Kerr, Ligia Regina Franco Sansigolo; Nacher, Mathieu.
Título: HIV-testing among female sex workers on the border between Brazil and French Guiana: the need for targeted interventions / Testes de HIV entre trabalhadoras do sexo na fronteira entre Brasil e Guiana Francesa: a necessidade de intervenções específicas / La prueba del VIH en las trabajadoras sexuales en la frontera entre la Guyana Francesa y Brasil: la necesidad de intervenciones específicas
Fonte: Cad. saúde pública = Rep. public health;31(8):1615-1622, Aug. 2015. tab.
Idioma: en.
Resumo: The border between Brazil and French Guiana is a place of economic, cultural, social and sexual exchange. Female sex workers represent a high risk population for HIV in this area where sexual tourism is particularly developed. HIV testing seems to be an important element in the fight against the epidemic. Indeed, early HIV testing gives access to treatments and prevention. An HIV/AIDS knowledge, attitudes, behaviors and practices survey was conducted in 2011 among sex workers along the border between Brazil and French Guiana. A total of 213 female sex workers were interviewed. One third (31.5%) of the interviewed had never tested for HIV. Factors associated with non HIV-testing were the lack of knowledge of places where to do an HIV test, to be 30 or older, feeling at risk of HIV, not evaluating one's own risk towards HIV, and living in Oiapoque. These results clearly suggest that targeted interventions are needed to encourage and assist female sex workers to get tested regularly.

A fronteira entre Guiana Francesa e Brasil é um lugar de intercâmbio econômico, cultural, social e sexual. Nessa área, onde o turismo sexual é particularmente desenvolvido, as mulheres profissionais do sexo representam uma população de alto risco de contágio pelo HIV. Os testes de HIV parecem ser um elemento importante da luta contra a epidemia. De fato, os primeiros testes de HIV dão acesso à prevenção e aos tratamentos. Foi realizada em 2011 uma pesquisa de conhecimento, atitudes, comportamentos e práticas sobre HIV/AIDS com mulheres profissionais do sexo ao longo da fronteira da Guiana Francesa com o Brasil. Foram entrevistadas 213 mulheres profissionais do sexo. Um terço (31,5%) delas nunca tinha feito o teste de HIV. Fatores associados a não realização do teste de HIV foram: a falta de conhecimento dos locais onde fazer o teste, ter idade igual ou acima de 30 anos, sentir-se em risco de contágio pelo HIV, falta de avaliação do risco de contágio pelo HIV e habitante do Oiapoque. Esses resultados sugerem claramente que intervenções direcionadas às mulheres profissionais do sexo são necessárias para que os testes sejam feitos regularmente.

La frontera entre la Guyana Francesa y Brasil es un lugar de intercambio económico, cultural y sexual. En esta zona, donde se desarrolla sobre todo el turismo sexual, las trabajadoras del sexo son una población de alto riesgo de VIH. La prueba del VIH parece ser un elemento en la lucha de esta epidemia. Además, la prueba inmediata del VIH permite el acceso a los tratamientos y la prevención. Se realizó una Encuesta de Conocimientos, Actitudes y Prácticas sobre el VIH/SIDA en 2011 entre las trabajadoras de sexo, trabajando en la frontera entre la Guyana Francesa y Brasil. Se entrevistaron a un total de 213 trabajadoras del sexo. Un tercio (31,5%) de las entrevistadas nunca se había hecho la prueba del VIH. Los factores asociados con no haberse hecho la prueba del VIH son la ausencia de conocimientos sobre los lugares, donde se realiza la prueba del VIH, tener 30 años o más, sentirse en riesgo de VIH, no evalúan su propio riesgo frente al VIH y viviendo en el Oiapoque. Estos resultados muestran claramente que las intervenciones específicas necesitan incentivos para estimular el uso regularmente de la prueba del VIH.
Descritores: Conhecimentos, Atitudes e Prática em Saúde
Infecções por HIV/diagnóstico
Infecções por HIV/prevenção & controle
Profissionais do Sexo/estatística & dados numéricos
-Brasil/epidemiologia
Guiana Francesa/epidemiologia
Infecções por HIV/epidemiologia
Valor Preditivo dos Testes
Fatores de Risco
Fatores Socioeconômicos
Limites: Adolescente
Adulto
Feminino
Seres Humanos
Meia-Idade
Adulto Jovem
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME


  5 / 26 LILACS  
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Id: lil-720421
Autor: Musset, Lise; Pelleau, Stéphane; Girod, Romain; Ardillon, Vanessa; Carvalho, Luisiane; Dusfour, Isabelle; Gomes, Margarete SM; Djossou, Félix; Legrand, Eric.
Título: Malaria on the Guiana Shield: a review of the situation in French Guiana
Fonte: Mem. Inst. Oswaldo Cruz;109(5):525-533, 19/08/2014. tab, graf.
Idioma: en.
Projeto: European Commission.
Resumo: In a climate of growing concern that Plasmodium falciparum may be developing a drug resistance to artemisinin derivatives in the Guiana Shield, this review details our current knowledge of malaria and control strategy in one part of the Shield, French Guiana. Local epidemiology, test-treat-track strategy, the state of parasite drug resistance and vector control measures are summarised. Current issues in terms of mobile populations and legislative limitations are also discussed.
Descritores: Antimaláricos/administração & dosagem
Malária/epidemiologia
-Anopheles
Resistência a Medicamentos
Guiana Francesa/epidemiologia
Insetos Vetores
Malária/tratamento farmacológico
Malária/transmissão
Limites: Animais
Seres Humanos
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME


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Id: lil-675464
Autor: Feer, François.
Título: Variations in dung beetles assemblages (Coleoptera: Scarabaeidae) within two rain forest habitats in French Guiana / Variaciones de las agregaciones de escarabajos coprófagos (Coleoptera: Scarabaeidae) en dos hábitats del bosque tropical en la Guayana Francesa
Fonte: Rev. biol. trop;61(2):753-768, Jun. 2013. ilus, graf, mapas, tab.
Idioma: en.
Resumo: The structure of dung beetle communities inhabiting tropical forests are known to be sensitive to many kinds of environmental changes such as microclimate related to vegetation structure. I examined Scarabaeinae assemblages in two sites of undisturbed high forest and two sites of low forest forming a transitional zone with the open habitat of an inselberg in French Guiana. Sampling was made with pitfall and flight interception traps during 2003 and 2004. The driest and warmest conditions characterized the low forest sites. Across two years we obtained 2 927 individuals from 61 species with pitfall traps and 1 431 individuals from 85 species with flight interception traps. Greater species richness and abundance characterized all sites sampled with pitfall traps during 2003 more than 2004. In 2003 no differences were detected among sites by rarefaction analyses. In 2004 the species richest high forest site was significantly different from one of the low forest sites. For both years Clench model asymptotes for species richness were greater in high forest than in low forest sites. For both years, mean per-trap species richness, abundance and biomass among high forest sites were similar and higher than in low forest sites, especially where the lowest humidity and the highest temperature were recorded. Within the two low forest sites, species richness and abundance recorded during the second year, decreased with distance to edge. Different dominant roller species characterized the pitfall samples in one site of low forest and in other sites. Small variations in microclimatic conditions correlated to canopy height and openness likely affected dung beetle assemblages but soil depth and the presence of large mammals providing dung resource may also play a significant role.

Es conocido que la estructura de las comunidades de escarabajos coprófagos que habitan los bosques tropicales es sensible a diferentes tipos de cambios ambientales tales como el microclima asociado a la vegetación. Hemos examinado las comunidades de Scarabaeinae en dos parcelas de bosque alto sin perturbación y en dos parcelas de bosque bajo, presentes en la transición con el hábitat abierto de un inselberg en la Guayana francesa. Las parcelas de bosque bajo tienen condiciones climáticas más cálidas y secas. A lo largo de dos años, mediante trampas de caída con atrayente, capturamos un total 2 927 individuos de 61 especies y con trampas de intercesión de vuelo, un total de 1 431 individuos pertenecientes a 85 especies. Una mayor riqueza específica y abundancia caracteriza a todos los sitios de muestreo con trampas de caída en 2003 más que en 2004. En el 2003 no se detectaron diferencias entre los sitios de análisis de rarefacción. En el 2004 la riqueza de especies fue significativamente diferente en el bosque de altura que en el bajo. Durante los dos años, las asíntotas del modelo de Clench para la riqueza específica fueron mayores en bosque alto que en bosque bajo. Durante los dos años, el promedio por trampa de riqueza específica, abundancia y biomasa fueron similares entre las parcelas de bosque alto, pero mayores que en las parcelas de bosque bajo, especialmenteen los sitios en los que se registró una mayor temperatura y menor humedad. Dentro de las dos parcelas de bosque bajo, la riqueza específica y la abundancia durante el segundo año disminuyeron con la distancia al borde. Las especies de coprófagos rodador que dominaban una de las parcelas del bosque bajo eran distintas de la del resto de parcelas. Los resultados de este estudio muestran que las pequeñas variaciones en las condiciones microclimáticas que están correlacionadas con la altura y la apertura del dosel arbóreo probablemente afectan a las comunidades de escarabajos coprófagos, aunque también son importantes la presencia de un suelo profundo y de grandes mamíferos que proporcionan recursos con sus heces.
Descritores: Coleópteros/classificação
Ecossistema
Árvores
-Biodiversidade
Guiana Francesa
Densidade Demográfica
Limites: Animais
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: CR1.1 - BINASSS - Biblioteca Nacional de Salud y Seguridad Social


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Id: lil-650803
Autor: Barrau, Marie; Larrieu, Sophie; Cassadou, Sylvie; Chappert, Jean-Loup; Dussart, Philippe; Najioullah, Fatiha; Matheus, Séverine; Renner, Julien; Gasc, Coralie; Quenel, Philippe; Ledrans, Martine.
Título: Hospitalized cases of influenza A(H1N1)pdm09 in the French territories of the Americas, July 2009–March 2010
Fonte: Rev. panam. salud pública = Pan am. j. public health;32(2), Aug. 2012.
Idioma: en.
Descritores: Vírus da Influenza A Subtipo H1N1
Influenza Humana/epidemiologia
-Comorbidade
Guiana Francesa/epidemiologia
Guadalupe/epidemiologia
Mortalidade Hospitalar
Hospitalização/estatística & dados numéricos
Influenza Humana/virologia
Martinica/epidemiologia
Insuficiência de Múltiplos Órgãos/epidemiologia
Insuficiência de Múltiplos Órgãos/virologia
Vigilância da População
Pneumonia Viral/epidemiologia
Pneumonia Viral/virologia
Complicações Infecciosas na Gravidez/epidemiologia
Índias Ocidentais/epidemiologia
Limites: Adolescente
Adulto
Idoso
Idoso de 80 Anos ou mais
Criança
Pré-Escolar
Feminino
Seres Humanos
Lactente
Recém-Nascido
Masculino
Meia-Idade
Gravidez
Adulto Jovem
Responsável: BR1.1 - BIREME


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Id: lil-624028
Autor: Dusfour, Isabelle; Issaly, Jean; Carinci, Romuald; Gaborit, Pascal; Girod, Romain.
Título: Incrimination of Anopheles (Anopheles) intermedius Peryassú, An. (Nyssorhynchus) nuneztovari Gabaldón, An. (Nys.) oswaldoi Peryassú as natural vectors of Plasmodium falciparum in French Guiana
Fonte: Mem. Inst. Oswaldo Cruz;107(3):429-432, May 2012. mapas, tab.
Idioma: en.
Resumo: Anopheles darlingi Root is the major vector of human malaria in the Neotropics and has been considered to be the sole malaria vector in French Guiana. The presence of other potential vectors suggests that malaria may be transmitted by other species under certain conditions. From 2006-2011, all anopheline specimens collected from 11 localities were assayed to determine if the Plasmodium circumsporozoite protein was present. In addition to An. darlingi, we found Anopheles oswaldoi, Anopheles intermedius and Anopheles nuneztovari specimens that were infected with Plasmodium sp. Further investigations on the behaviour and ecology of An. oswaldoi, An. intermedius and An. nuneztovari are necessary to determine their role in malaria transmission in French Guiana.
Descritores: Anopheles/parasitologia
Insetos Vetores/parasitologia
Plasmodium falciparum/química
Plasmodium malariae/química
Plasmodium vivax/química
Proteínas de Protozoários/análise
-Anopheles/classificação
Ensaio de Imunoadsorção Enzimática
Guiana Francesa
Insetos Vetores/classificação
Malária/transmissão
Densidade Demográfica
Plasmodium falciparum/isolamento & purificação
Plasmodium malariae/isolamento & purificação
Plasmodium vivax/isolamento & purificação
Estações do Ano
Limites: Animais
Feminino
Seres Humanos
Responsável: BR1.1 - BIREME


  9 / 26 LILACS  
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Id: lil-589045
Autor: Dusfour, Isabelle; Thalmensy, Véronique; Gaborit, Pascal; Issaly, Jean; Carinci, Romuald; Girod, Romain.
Título: Multiple insecticide resistance in Aedes aegypti (Diptera: Culicidae) populations compromises the effectiveness of dengue vector control in French Guiana
Fonte: Mem. Inst. Oswaldo Cruz;106(3):346-352, May 2011. ilus.
Idioma: en.
Resumo: In French Guiana, pyrethroids and organophosphates have been used for many years against Aedes aegypti. We aimed to establish both the resistance level of Ae. aegypti and the ultra low volume spray efficacy to provide mosquito control services with practical information to implement vector control and resistance management. Resistance to deltamethrin and fenitrothion was observed. In addition, the profound loss of efficacy of AquaK'othrine® and the moderate loss of efficacy of Paluthion® 500 were recorded. Fenitrothion remained the most effective candidate for spatial application in French Guiana until its removal in December 2010. Further investigation of the mechanism of resistance to deltamethrin demonstrated the involvement of mixed-function oxidases and, to a lesser extent, of carboxylesterases. However, these observations alone cannot explain the level of insecticide resistance we observed during tube and cage tests.
Descritores: Aedes
Resistência a Inseticidas
Inseticidas
Controle de Mosquitos
Organofosfatos
Piretrinas
-Aedes/enzimologia
Dengue
Guiana Francesa
LETHAL DOSE ACADEMIES AND INSTITUTES
Limites: Animais
Feminino
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME


  10 / 26 LILACS  
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Id: lil-538170
Autor: Bérenger, Jean-Michel; Pluot-Sigwalt, Dominique; Pagès, Frédéric; Blanchet, Denis; Aznar, Christine.
Título: The triatominae species of French Guiana (Heteroptera: Reduviidae)
Fonte: Mem. Inst. Oswaldo Cruz;104(8):1111-1116, Dec. 2009. tab, ilus.
Idioma: en.
Resumo: An annotated list of the triatomine species present in French Guiana is given. It is based on field collections carried out between 1993-2008, museum collections and a literature review. Fourteen species, representing four tribes and six genera, are now known in this country and are illustrated (habitus). Three species are recorded from French Guiana for the first time: Cavernicola pilosa, Microtriatoma trinidadensis and Rhodnius paraensis. The two most common and widely distributed species are Panstrongylus geniculatus and Rhodnius pictipes. The presence of two species (Panstrongylus megistus and Triatoma maculata) could be fortuitous and requires confirmation. Also, the presence of Rhodnius prolixus is doubtful; while it was previously recorded in French Guiana, it was probably mistaken for R. robustus. A key for French Guiana's triatomine species is provided.
Descritores: Insetos Vetores/classificação
Triatominae/classificação
-Guiana Francesa
Limites: Animais
Tipo de Publ: Revisão
Responsável: BR1.1 - BIREME



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