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Browsing by Author "Grijalva Cobo, Mario Javier"

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Absence of domestic triatomine colonies in an area of the coastal region of Ecuador where Chagas disease is endemic

Grijalva Cobo, Mario Javier (2010)

Rhodnius ecuadoriensis is considered the second most important vector of Chagas disease in Ecuador. It is distributed across six of the 24 provinces and occupies intradomiciliary, peridomiciliary and sylvatic habitats. ...
Abundance, Natural Infection with Trypanosomes, and Food Source of an Endemic Species of Triatomine, Panstrongylus howardi (Neiva 1911), on the Ecuadorian Central Coast

Baus Carrera, Esteban Guillermo; Grijalva Cobo, Mario Javier; Ocaña Mayorga, Sofía Beatriz; Villacis Salazar, Anita Gabriela; Yumiseva Marín, César Alberto (2015)

The elimination of domestic triatomines is the foundation of Chagas disease control. Regional initiatives are eliminating introduced triatomine species. In this scenario, endemic triatomines can occupy the ecological niches ...
Bats, trypanosomes, and triatomines in Ecuador: new insights into the diversity, transmission, and origins of Trypanosoma cruzi and chagas disease

Grijalva Cobo, Mario Javier; Ocaña Mayorga, Sofía Beatriz; Pinto Báez, Christian Miguel; Villacis Salazar, Anita Gabriela (14/10/2015)

The generalist parasite Trypanosoma cruzi has two phylogenetic lineages associated almost exclusively with bats—Trypanosoma cruzi Tcbat and the subspecies T. c. marinkellei. We present new information on the genetic ...
Comprehensive survey of domiciliary triatomine species capable of transmitting Chagas Disease in southern Ecuador

Grijalva Cobo, Mario Javier; Villacís Salazar, Anita Gabriela; Yumiseva Marín, César Alberto; Moncayo Benalcázar, Ana Lucía; Baus Carrera, Esteban Guillermo; Ocaña Mayorga, Sofía Beatriz (06/10/2015)

Chagas disease is a major health problem in Latin America. Its infectious agent, Trypanosoma cruzi, is transmitted mainly by the feces of insects called triatomines. Although great progress has been made in reducing ...
Conocimientos, actitudes y prácticas sobre la vacuna de influenza durante el embarazo en Quito-Ecuador

Erazo Checa, Carlos Vinicio; Moncayo Benalcázar, Ana Lucía

Apresentação/Introdução: La vacunación es la forma más efectiva para prevenir la infección y las consecuencias graves causadas por el virus de la influenza en mujeres embarazadas y sus hijos. El Ministerio de Salud del ...
Development of Peptide-Based Lineage-Specific Serology for Chronic Chagas Disease: Geographical and Clinical Distribution of Epitope Recognition.

Grijalva Cobo, Mario Javier (2014)

Chagas disease, caused by infection with the protozoan Trypanosoma cruzi, remains a serious public health issue in Latin America. Genetically diverse, the species is sub-divided into six lineages, known as Tcl-TcVI, which ...
Distribution of triatomine species in domestic and peridomestic environments in central coastal Ecuador

Baus Carrera, Esteban Guillermo; Grijalva Cobo, Mario Javier; Moncayo Benalcázar, Ana Lucía; Ocaña Mayorga, Sofía Beatriz; Villacis Salazar, Anita Gabriela; Yumiseva Marín, César Alberto (2017)

Background: Although the central coast of the Ecuador is considered endemic for Chagas disease, few studies have focused on determining the risk of transmission in this region. In this study we describe the triatomine ...
Dynamics of Sylvatic Chagas Disease Vectors in Coastal Ecuador Is Driven by Changes in Land Cover.

Grijalva Cobo, Mario Javier (2014)

Globally, more than 10 million people are infected with Trypanosoma cruzi. The emergence and perpetuation of Chagas disease in some endemic countries, such as Ecuador, depends largely on sylvatic populations of T. ...
Ecological factos related to the widespread distribution of sylvatic Rhodnius ecuadoriensis populations in southern Ecuador.

Grijalva Cobo, Mario Javier (2012)

Chagas disease transmission risk is a function of the presence of triatomines in domestic habitats. Rhodnius ecuadoriensis is one of the main vectors implicated in transmission of Trypanosoma cruzi in Ecuador. This triatomine ...
Efecto de un programa de transferencia monetaria condicionada en la mortalidad de niños menores de 5 años en el Ecuador

Moncayo Benalcázar, Ana Lucía

Introducción: A pesar de que la tasa de mortalidad en menores de cinco años (TMM5) ha disminuido considerablemente en el Ecuador, miles de niños continúan muriendo por causas relacionadas a la pobreza. Un programa social ...
Factores sociales asociados con la utilización de los servicios de atención prenatal en Ecuador

Costales Cordero, Jaime Alfredo; Grijalva Cobo, Mario Javier (11/2016)

Objetivos: La atención prenatal es uno de los pilares de la salud pública y permite el acceso a intervenciones tales como la prevención de la transmisión materno-infantil del VIH y de la sífilis congénita. Este artículo ...
HIV and syphilis infection in pregnant women in Ecuador: prevalence and characteristics of antenatal care

Grijalva Cobo, Mario Javier (2014)

Objectives This study aimed to obtain nationally representative estimates of HIV and syphilis prevalence and coverage of preventive antenatal services in pregnant women in Ecuador, in order to develop a national strategy ...
Influence of ecological factors on the presence of a triatomine species associated with the arboreal habitat of a host of Trypanosoma cruzi

Crespo Pérez, María Verónica; Grijalva Cobo, Mario Javier; Ocaña Mayorga, Sofía Beatriz; Pinto Báez, Christian Miguel; Villacis Salazar, Anita Gabriela (2018)

Background: The white-naped squirrel, Simosciurus nebouxii (previously known as Sciurus stramineus), has recently been identified as an important natural host for Trypanosoma cruzi in Ecuador. The nests of this species ...
Late Pleistocene environmental changes lead to unstable demography and population divergence of Anopheles albumanus in the northern Neotropics

Grijalva Cobo, Mario Javier (2010)

We investigated the historical demography of Anopheles albimanus using mosquitoes from five countries and three different DNA regions, the mitochondrial cytochrome oxidase subunit I gene (COI), the single copy nuclear white ...
Life cycle, feeding, and defecation patterns of Panstrongylus chinai (Hemiptera: Reduviidae: Triatominae) under laboratory conditions

Villacis Salazar, Anita Gabriela; Grijalva Cobo, Mario Javier (2016-07)

Chagas disease is caused by the protozoan Trypanosoma cruzi. Panstrongylus chinai (Del Ponte) is highly domiciliated in the Peruvian and Ecuadorian Andes and has been found naturally infected with T. cruzi. The objective ...
Life cycle, feeding, and defecation patterns of Triatoma carrioni (Hemiptera: Reduviidae), under laboratory conditions

Grijalva Cobo, Mario Javier; Moncayo Benalcázar, Ana Lucía; Villacis Salazar, Anita Gabriela (2019-04)

Chagas disease is caused by Trypanosoma cruzi (Kinetoplastida: Trypanosomatidae). It is transmitted to humans primarily through contaminated feces of blood-sucking vectors of the subfamily Triatominae, known in Ecuador as ...
Limitations of selective deltamethrin application for triatomine control in central coastal Ecuador

Baus Carrera, Esteban Guillermo; Grijalva Cobo, Mario Javier; Villacís Salazar, Anita Gabriela; Yumiseva Marin, César Alberto (2011)

This year-long study evaluated the effectiveness of a strategy involving selective deltamethrin spraying and community education for control of Chagas disease vectors in domestic units located in rural communities of coastal ...
Microdistribution of Sylvatic Triatomine populations in Central-Coastal Ecuador

Grijalva Cobo, Mario Javier (2010)

Chagas disease is a serious public health problem in Ecuador, where nearly 230,000 individuals show Trypanosoma cruzi infection. Sylvatic T. cruzi transmission is a threat to current control strategies. This is because of ...
Models of disease vector control: when can aggressive initial intervention lower long-term cost?

Grijalva Cobo, Mario Javier (2018-02)

Insecticide spraying of housing units is an important control measure for vector-borne infections such as Chagas disease. As vectors may invade both from other infested houses and sylvatic areas and as the effectiveness ...
Phylogeographic Pattern and Extensive Mitochondrial DNA Divergence Disclose a Species Complex within the Chagas Disease Vector Triatoma dimidiata.

Grijalva Cobo, Mario Javier (2013)

Background: Triatoma dimidiata is among the main vectors of Chagas disease in Latin America. However, and despite important advances, there is no consensus about the taxonomic status of phenotypically divergent T. dimidiata ...

Browsing by Author "Grijalva Cobo, Mario Javier"

Browsing by Author "Grijalva Cobo, Mario Javier"

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