نتایج جستجو برای: sand fly

تعداد نتایج: 59942  

2014
Kazue Hashiguchi Lenin Velez N. Hirotomo Kato Hipatia Criollo F. Daniel Romero A. Eduardo Gomez L. Luiggi Martini R. Flavio Zambrano C. Manuel Calvopina H. Abraham Caceres G. Yoshihisa Hashiguchi

To study the sand fly fauna, surveys were performed at four different leishmaniasis-endemic sites in Ecuador from February 2013 to April 2014. A modified and simplified version of the conventional Shannon trap was named "mini-Shannon trap" and put to multiple uses at the different study sites in limited, forested and narrow spaces. The mini-Shannon, CDC light trap and protected human landing me...

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2014
María Angélica Contreras Gutiérrez Rafael J. Vivero Iván D. Vélez Charles H. Porter Sandra Uribe

Sand flies include a group of insects that are of medical importance and that vary in geographic distribution, ecology, and pathogen transmission. Approximately 163 species of sand flies have been reported in Colombia. Surveillance of the presence of sand fly species and the actualization of species distribution are important for predicting risks for and monitoring the expansion of diseases whi...

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2014
Ana Caroline Moura Rodrigues Rafaella Albuquerque Silva Luciana Magalhães Melo Maria Claudia Santos Luciano Claudia Maria Leal Bevilaqua

The objective of this study was to perform an epidemiological survey to determine the areas at risk of visceral leishmaniasis through the detection and quantification of natural infection by Leishmania infantum in Lutzomyia longipalpis. The sandflies were captured between February 2009 and January 2010, at 21 sites in four regions of the Fortaleza municipality. Samples were screened for the pre...

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Journal: :Science translational medicine 2015
Fabiano Oliveira Edgar Rowton Hamide Aslan Regis Gomes Philip A Castrovinci Patricia H Alvarenga Maha Abdeladhim Clarissa Teixeira Claudio Meneses Lindsey T Kleeman Anderson B Guimarães-Costa Tobin E Rowland Dana Gilmore Seydou Doumbia Steven G Reed Phillip G Lawyer John F Andersen Shaden Kamhawi Jesus G Valenzuela

Currently, there are no commercially available human vaccines against leishmaniasis. In rodents, cellular immunity to salivary proteins of sand fly vectors is associated to protection against leishmaniasis, making them worthy targets for further exploration as vaccines. We demonstrate that nonhuman primates (NHP) exposed to Phlebotomus duboscqi uninfected sand fly bites or immunized with saliva...

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Journal: :The Journal of Experimental Medicine 2001
Jesus G. Valenzuela Yasmine Belkaid Mark K. Garfield Susana Mendez Shaden Kamhawi Edgar D. Rowton David L. Sacks José M.C. Ribeiro

Leishmania parasites are transmitted to their vertebrate hosts by infected phlebotomine sand fly bites. Sand fly saliva is known to enhance Leishmania infection, while immunity to the saliva protects against infection as determined by coinoculation of parasites with vector salivary gland homogenates (SGHs) or by infected sand fly bites (Kamhawi, S., Y. Belkaid, G. Modi, E. Rowton, and D. Sacks....

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Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2011
Dia-Eldin A Elnaiem

A literature review is provided on the state of knowledge of the ecology and control of the sand fly vectors of Leishmania donovani in East Africa, with a special emphasis on Phlebotomus orientalis. Visceral leishmaniasis caused by L. donovani is a major health problem in several areas in East Africa. Studies conducted in the past 70 years identified P. orientalis Parrot and P. martini Parrot a...

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2014
Farnaz Zahedifard Elham Gholami Tahereh Taheri Yasaman Taslimi Fatemeh Doustdari Negar Seyed Fatemeh Torkashvand Claudio Meneses Barbara Papadopoulou Shaden Kamhawi Jesus G. Valenzuela Sima Rafati

BACKGROUND Novel vaccination approaches are needed to prevent leishmaniasis. Live attenuated vaccines are the gold standard for protection against intracellular pathogens such as Leishmania and there have been new developments in this field. The nonpathogenic to humans lizard protozoan parasite, Leishmania (L) tarentolae, has been used effectively as a vaccine platform against visceral leishman...

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2009
Djwantoro HARDJITO

This paper presents the results of study on effect of various parameters on mechanical properties of fly ash-based geopolymer mortar with bottom ash as partial or full replacement for sand. Compressive strength of samples with 10% bottom ash (BA) was comparable to those with only sand. Further increase in bottom ash content decreased the compressive strength. However, the reverse tendency occur...

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2007

A relatively new technology, high concentration backfilling, enables mining industry to think on the use of fly ash as underground back fill material. The advantages are enormous. Jharia and Ranigunj coalfields being the oldest in the country had adopted unscientific mining during pre-nationalization period. In many cases mining was conducted without proper stowing and that had resulted in seve...

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Journal: :Zootaxa 2015
Sergio Ibáñez-Bernal Eric Fisher

A new name for the Oriental genus Nyssomyia Hull, 1962 (Diptera: Asilidae) is proposed. Homonymy exists between this Oriental robber fly genus and the more senior Neotropical phlebotomine sand fly genus Nyssomyia Barretto, 1962 (sensu Galati 2003) (Diptera: Psychodidae), and the following replacement name is proposed: Ekkentronomyia nom. nov. for Nyssomyia Hull (nec Barretto 1962). Accordingly,...

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