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Introduction
Classical and Molecular Taxonomy, DNA barcoding.
Natural and experimental infection with Leishmania species in sandflies.
Molecular detection of Leishmania DNA from sand flies and blood samples.
Molecular Identification of blood meals and plant meals in phlebotomine sandflies.
Xenodiagnosis of Leishmaniasis canine.
Isolation, culture, and genotipification of Leishmania spp., Trypanosoma cruzi, T. rangeli from vectors and host vertebrates. Molecular Diagnostic of SARS'Cov-2.
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Education
May 2013
August 2010 - January 2012
February 1997 - June 2006
Publications
Publications (44)
Introduction:
Aedes aegypti is the principal vector of dengue in urban areas. Despite its epidemiological importance, the genetic variability of Colombian populations of this species is unknown.
Objetive:
To determine the genetic variability of mitocondrial gene ND4, which codes for subunit 4 of the enzyme NADH deshydrogenase, between population...
The phlebotomine sand flies Lutzomyia pia (Fairchild & Hertig 1961) and Lutzomyia tihuiliensis Le Pont, Torrez-Espejo & Dujardin 1997 (Diptera: Psychodidae) belong to the pia series of the Lu. verrucarum species group, which includes several species that bite humans in Andean foci of leishmaniasis. The females of these two species exhibit isometry...
Phlebotomine sand flies are critical vectors of Leishmania parasites, impacting public health significantly. This study focused on assessing the diversity of sand flies in a rural area of El Carmen de Bolívar Municipality, northern Colombia, employing rarefaction curves and Hill numbers to understand potential vector communities and inform environm...
Introduction
El Alférez, a village in Los Montes de María (Bolívar, Colombia) and a macro-focus of leishmaniasis, recorded its first case in 2018, evidencing changes in the distribution and eco-epidemiology of the disease, although interactions between vectors and local fauna remain unknown.
Objective
To evaluate the diversity of sandflies and the...
Se evaluó la prevalencia de infección por parásitos tripanosomátidos en Didelphis marsupialis y su relación con los aspectos morfológicos/etarios en una zona rural de El Carmen de Bolívar, Colombia. En cinco visitas (2018-2019)se instalaron trampas Tomahawk® en los ecótopos peridoméstico y silvestre en la Vereda El Alférez, durante tres noches cons...
We studied the prevalence of infection by trypanosomatid parasites in Didelphis marsupialis and its relationship with morphological/age aspects in a rural area of El Carmen de Bolivar, Colombia. Five visits were made to the Vereda El Alférez; each of which lasted three consecutive nights. During these visits, Tomahawk® traps were installed in the p...
Introducción: Aunque la leishmaniasis visceral (LV) es endémica en el Caribe colombiano, en los últimos años se ha observado un incremento en su área de distribución, con el registro de casos en nuevas localidades. Objetivos: En este estudio se caracterizaron los flebotomíneos, parásitos del género Leishmania y algunos vertebrados domésticos asocia...
Didelphis marsupialis is a primary reservoir of Trypanosoma cruzi, etiologic agent of American Trypanosomiasis-AT or Chagas Disease-CD, in America. Some findings of Trypanosoma rangeli have been recorded in this mammal, in sympatry with T. cruzi. In Los Montes de María, Bolívar, Colombian Caribbean, triatomine insects and potential parasite host ha...
Leishmania infantum is the main causative agent responsible for visceral leishmaniasis (VL), a disease with global distribution. The genomic structure and genetic variation of this species have been widely studied in different parts of the world. However, in some countries, this information is still yet unknown, as is the genomic behaviour of the m...
The aim of this study wasthe identification of Leishmaniaspecies that causescutaneous leishmaniasisin a patient from Buenaventura, Valle del Cauca, on the Pacific coast of Colombia.Clinical samples were obtained from a 29 years-old male who presented a distinct ulcer with raised borders on his neck. Samples were taken for direct microscopic examina...
Introducción: En los últimos años se han registrado casos de leishmaniasis en áreas urbanas de Colombia. Métodos: Se realizó estudio de tipo descriptivo transversal, en dos barrios de Ovejas, Sucre, durante agosto y septiembre de 2017. Previo consentimiento informado, a los menores de edad se aplicó una prueba rápida onsite marca CTKBiotech©, la cu...
Tick-borne pathogens are etiological agents of some zoonotic diseases, causing important consequences in animal and human health. These are emerging around the world, especially in tropical countries including Colombia. Domestic dogs play an essential role in the epidemiology of several zoonotic tick-borne pathogens. We performed the detection of b...
Introducción. Aunque la subregión de los Montes de María constituye uno de los principales macrofocos de leishmaniasis en Colombia, existen sitios donde se desconocen los vectores responsables de la transmisión.
En este estudio, se estimó la diversidad de flebotomíneos asociada a la transmisión de Leishmania spp. en la vereda El Alférez del municip...
Background: Didelphis marsupialis (Didelphimorphia) is considered a reservoir of Trypanosoma cruzi and Leishmania spp. in several countries in South America, including Colombia. Nevertheless, its epidemiological role in the presence of Chagas disease and/or leishmaniasis is scarcely known in Los Montes de María. We proposed to study the presence of...
Se registra el aislamiento de parásitos del género Leishmania a partir de una biopsia de ganglio poplíteo obtenida de un perro con leishmaniasis visceral canina. El animal procedía del área urbana del municipio de Ovejas, Sucre, Colombia. La prueba de Inmunofluorescencia Indirecta fue positiva para anticuerpos anti-Leishmania spp hasta una dilución...
The purpose of this study was to determine the epidemiology of leptospirosis in rural areas of Ciénaga de Oro, Córdoba, Colombia, a convenience sampling was carried out on 13 farms. The sample size was 325 reproductive age cows, 11 canine samples, and 20 humans. The samples were subjected to MAT analysis with 11 serogroups of Leptospira interrogans...
Introduction: Molecular biology techniques have allowed a better knowledge of sources of blood meals in vector insects. However, the usefulness of these techniques depends on both the quantity of ingested blood and the digestion process in the insect.
Objective: To identify the time limit for detection of the human cytochrome b (Cyt b) gene in expe...
Identification of the species of phlebotomine sand flies present in each focus of leishmaniasis is necessary to incriminate vectors and implement vector control strategies. Although the cytochrome oxidase I (COI) gene has been proposed as a barcode for the identification of animal species, less than 20% of New World phlebotomines have been characte...
Identification of the bloodmeal sources of phlebotomine sand flies is fundamental to determining which species are anthropophilic and understanding the transmission of Leishmania parasites in natural epidemiological settings. The objective of this study was to identify sand fly bloodmeals in the mixed leishmaniasis focus of the department of Sucre,...
Los insectos relacionados con la transmisión de los patógenos causantes de las leishmaniasis han sido poco estudiados en la Sierra Nevada de Santa Marta, Colombia, incluido el departamento de Magdalena, donde a la fecha están registradas trece especies del género Lutzomyia . En la presente nota se informa el hallazgo de tres especies y un subgénero...
Among Colombia's Caribbean coast departments, Sucre has the greatest species diversity of phlebotomine sand flies (genus Lutzomyia), including several associated with the epidemiological cycles of cutaneous and visceral leishmaniasis. Due to its public health importance, the phlebotomine fauna of Sucre must be monitored periodically. Sand flies wer...
Lutzomyia (Helcocyrtomyia) hartmanni is a sand fly that has been implicated in the transmission of Leishmania (Viannia) colombiensis, an etiologic agent of cutaneous leishmaniasis in Colombia. The objective of this work was to explore the potential usefulness of the mitochondrial serine transfer RNA (UCN) (tRNASer) in the taxonomic determination of...
Se describe e ilustra una nueva especie de psicódido no hematófago, Trichomyia andina, a partir de machos recolectados en el Departamento de Risaralda, Colombia. Este psicódido pertenece al subgénero Opisthotrichomyia Bravo, 2001, y se distingue de las especies co-génericas por presentar un gonostilo ancho, multipartito, parcialmente serrado e infu...
Se informa el primer hallazgo de Lutzomyia trinidadensis (Newstead, 1922), L. bettinii Feliciangeli, Ramírez-Pérez & Ramírez, 1988, L. flaviscutellata (Mangabeira, 1942), L. yuilli Young & Porter, 1972, L.saulensis (Floch & Abonnenc, 1944), L. runoides (Fairchild & Hertig, 1953), L. ayrozai (Barretto & Coutinho, 1940), L.claustrei Abonnenc, Leger &...
Una nueva especie de Trichomyia Haliday (Diptera, Psychodidae) de Los Montes de María, Colombia. Trichomyia colosensis n. sp. es descrita e ilustrada a partir de ejemplares machos recolectados con una trampa modificada CDC en la Reserva Forestal Protectora Serranía de Coraza y Montes de María, sobre la Costa Caribe Colombiana. Hasta la fecha están...
span style="font-size: 12pt; font-family: Arial">La fauna de flebotomíneos de la Costa Atlántica de Colombia es aún poco conocida, lo que justifica la necesidad de llevar a cabo estudios que permitan conocer la riqueza de especies de la región. Con este propósito se desarrollaron muestreos entomológicos en el municipio de Colosó, departamento de Su...
RESUMEN INTRODUCCIÓN: la leishmaniasis cutánea es una enfermedad endémica en Los Montes de María, Colombia, pero hasta la fecha se desconocían los flebotomíneos que pican al humano en el área. OBJETIVO: determinar las especies de Lutzomyia que, por sus hábitos antropofílicos y antecedentes vectoriales, podrían mantener el ciclo epidemiológico de la...
This is the first report of Lutzomyia longipalpis (Lutz & Neiva, 1912), L. shannoni (Dyar, 1929), L. micropyga (Mangabeira, 1942) and L. atroclavata (Knab, 1913) in the surroundings of an urban settlement in the Caribbean coast. Phlebotomine sandflies were collected by active search using suction devices and mouth aspirators in trees around the cit...
Trichomyia quimbaya sp. nov. es descrita e ilustrada con base en un ejemplar macho recolectado con una trampa de luz CDC, en la zona cafetera de la Cordillera Central de Colombia. Ésta se diferencia fácilmente de otras especies de Trichomyia por las prolongaciones digitiformes prominentes del gonocoxito, que terminan en espinas largas con el ápice...
Se describe e ilustra una nueva especie de Psychodidae encontrada en los Andes Colombianos: Trichomyia risaraldensis sp. nov. El material entomológico tipo se recolectó en el municipio de Marsella, departamento de Risaralda, Colombia, con una trampa de luz CDC. Morfológicamente, Trichomyia risaraldensis sp. nov. se asemeja a Trichomyia amata Barret...
The sand fly fauna of the Colombian Caribbean is still not completely known and further surveys are needed in order to determine the richness of species over the region. Entomological samplings were performed in the municipality of Colosó, department of Sucre, using two modified CDC traps, in January and March of 2007. Two males belonging to Brumpt...
INTRODUCTION: cutaneous leishmaniasis is an endemic disease in Los Montes de María, Colombia, but the identity of the human- biting sand fly species in the region remained unknown until now. OBJECTIVE: to determine the Lutzomyia species that could be involved in the epidemiological cycle of cutaneous leishmaniasis in this area, considering their an...
En Colombia están registradas 143 especies de Lutzomyia França, pero menos del 7% de éstas se encuentran incriminadas como vectores de Leishmania spp. Debido a la alta semejanza morfológica de algunas especies vectoras con otras no vectoras, se necesitan caracteres taxonómicos alternativos para identificar correctamente los flebotomíneos de cada zo...
The sand fly Lutzomyia columbiana is considered a suspected vector of Leishmania mexicana and Leishmania braziliensis in Colombia. Lu. columbiana belongs to the Lutzomyia verrucarrum species group, which included some sibling species. This has motivated the search for molecular markers to distinguish these taxi. In this paper, we described for the...
The number of species of the genus Lutzomyia found in the North coast of Colombia is relatively small compared to the diversity observed in other biogeographic zones of the country. In part, this situation may be attributed to the many unexplored areas that remain in the region. The goal of this study was to examine the diversity of the genus Lutzo...
Lutzomyia columbiana es un flebotomíneo considerado como vector sospechoso de Leishmania mexicana y Leishmania braziliensis en Colombia. Este insecto pertenece al grupo verrucarum, que incluye algunos taxones isomórficos, lo que ha estimulado la búsqueda de marcadores moleculares que permitan, además de diferenciar las especies, estudiar sus relaci...
This is the first record of the presence of the medically important genus Lutzomyia França in the Department of Guainía, Colombia. Sand flies were collected biting humans in the surroundings of the urban area of the Municipality of Inírida. Three Lutzomyia species were taxonomically identified as L. davisi (Root), L. olmeca bicolor Fairchild & Theo...
Introducción. La serie pia del grupo verrucarum está integrada por siete especies de Lutzomyia, incluyendo a L. pia, L. limafalcaoae y L. emberai que están presentes en Colombia.
Objetivo. Este artículo tiene como objetivo registrar el hallazgo de una morfoespecie antropofílica de la serie pia en el país.
Materiales y métodos. Los flebotomíneos f...
Se describe e ilustra el primer caso teratológico detectado en el vector de leishmaniosis visceral Lutzomyia evansi, en un espécimen hembra colectado en zona periurbana del municipio de Sincelejo, departamento de Sucre, Colombia. El individuo teratomorfo presentó una bifurcación en la base de una de sus espermatecas que dio origen a una tercera esp...