To date, there is no effective treatment to cure dengue fever, a mosquito-borne disease which has a major impact on human populations in tropical and sub-tropical regions. Although the characteristics of dengue infection are well known, factors associated with landscape are highly scale dependent in time and space, and therefore difficult to monitor. We propose here a mapping review based on 78 articles that study the relationships between landscape factors and urban dengue cases considering household, neighborhood and administrative levels. Landscape factors were retrieved from survey questionnaires, Geographic Information Systems (GIS), and remote sensing (RS) techniques. We structured these into groups composed of land cover, land use, and housing type and characteristics, as well as subgroups referring to construction material, urban typology, and infrastructure level. We mapped the co-occurrence networks associated with these factors, and analyzed their relevance according to a three-valued interpretation (positive, negative, non significant). From a methodological perspective, coupling RS and GIS techniques with field surveys including entomological observations should be systematically considered, as none digital land use or land cover variables appears to be an univocal determinant of dengue occurrences. Remote sensing urban mapping is however of interest to provide a geographical frame to distribute human population and movement in relation to their activities in the city, and as spatialized input variables for epidemiological and entomological models.

The genus Anopheles encompasses several species considered as vectors of human infecting Plasmodium. Environmental changes are responsible for behavior changes in these vectors and therefore the pattern of malaria transmission. To better understand the dynamics of malaria transmission, this study aimed at identify the species of adult anophelines found in a malaria endemic urban area of the Amazon region, Mâncio Lima, located in the Acre State Brazil. Using Shannon-type light traps installed at 11 collection points near fish ponds, a total of 116 anophelines were collected belonging to nine species. Anopheles darlingi Root 1926 and An. albitarsis s.l. Lynch-Arribalzaga 1878 were the most abundant and predominant species. Despite the low number of captured adult anophelines, the occurrence of An. darlingi throughout all urban area and the presence of secondary vectors reinforce the need of a permanent and continuous entomological surveillance.

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<p><strong>Introducción.</strong> <em>Aedes albopictus </em>se encuentra ampliamente distribuido en el mundo. Su introducción en las Américas ocurrió en 1985 y es considerado vector potencial de los virus dengue y uno de los principales vectores del virus chikungunya. En Colombia, su primer reporte fue en Leticia (Amazonas) en 1998, seguido de Buenaventura (Valle del Cauca) en 2001, Barrancabermeja (Santander) en 2010 y Medellín (Antioquia) en 2011. Esta especie actualmente se ha reportado en 10 departamentos del país.</p><p><strong>Objetivo.</strong> Notificar el hallazgo de <em>Ae. albopictus</em> en el municipio de Istmina, Chocó, Colombia y su importancia en salud pública.</p><p><strong>Materiales y métodos.</strong> En enero de 2015 se realizó la inspección de formas inmaduras de <em>Aedes</em> en criaderos de los barrios de San Agustín, Santa Genoveva y Subestación del municipio de Istmina, Chocó, Colombia. Las formas inmaduras recolectadas en el municipio de Istmina fueron identificadas en la Unidad de Entomología del Laboratorio de Salud Pública Departamental de Chocó, y confirmadas en el Laboratorio de Entomología, Red Nacional de Laboratorios del Instituto Nacional de Salud en Bogotá.</p><p><strong>Resultados. </strong>En enero de 2015, se encontraron doce larvas de <em>Ae. albopictus</em> en criaderos ubicados en los barrios Subestación y San Agustín en el municipio de Istmina, Chocó.</p><p><strong>Conclusión.</strong> La detección de <em>Ae. albopictus</em> en el municipio de Istmina, Chocó, refuerza la importancia del fortalecimiento de estrategias de vigilancia entomológica contínua a nivel municipal y departamental en el país y especialmente en el municipio de Istmina y municipios aledaños.</p>

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