A5025368349- Trypanosoma species research and implications
- Research on Leishmaniasis Studies
- Vector-borne infectious diseases
- Malaria Research and Control
- Mosquito-borne diseases and control
- Parasites and Host Interactions
- Helminth infection and control
- Bartonella species infections research
- Insect Pest Control Strategies
- Dengue and Mosquito Control Research
- Insect symbiosis and bacterial influences
- Viral Infections and Vectors
- Vector-Borne Animal Diseases
- Public Health and Social Inequalities
- Studies on Chitinases and Chitosanases
- Insect and Pesticide Research
- Diptera species taxonomy and behavior
- Insect behavior and control techniques
- Dermatological diseases and infestations
- Yersinia bacterium, plague, ectoparasites research
- Evolution and Genetic Dynamics
- Leptospirosis research and findings
- Agricultural and Food Production Studies
- Rabies epidemiology and control
- Insect Resistance and Genetics
Instituto Nacional de Salud Pública
2010-2025
Instituto Nacional de Medicina Tropical
2015-2025
Administración Nacional de Laboratorios e Institutos de Salud
2019-2025
Ministerio de Salud
2015-2023
Universidad del Tacana
2015-2023
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2023
Autonomous University of Chiapas
2023
Centro Científico Tecnológico - San Juan
2021
Universidad Nacional Autónoma de México
2013
Hospital General de México
2013
Cutaneous leishmaniasis (CL) is endemic to the Yucatan Peninsula of Mexico. The main causative agent parasite Leishmania mexicana (Biagi) (Kinetoplastida: Trypanosomatidae) and, based on classic work Dr Biagi's research team, it has been generally accepted and frequently reported that only vector L. in region sandfly Lutzomyia olmeca (Vargas & Diáz-Nájera) (Diptera: Psychodidae). Evidence gathered from recent entomological studies conducted mainly Calakmul, Campeche, however, suggests other...
The aim of this study was to analyse the prevalence and distribution Bartonella species in companion animals, wildlife their associated fleas different landscapes Atlantic Forest ecoregion Argentina, phylogenetic relationships between identified addition those found other regions available GenBank. A total 257 mammals, including rodents, opossums, dogs cats, were examined detect presence both host tissues. revealed rodent (47.7%), opossum (7.8%), spleens (6.5%) cat blood (10%). Analysis 15...
The population genetics of Triatoma dimidiata haplogroups was analyzed at landscape and sub-regional scales in Chiapas regional level across the Mexican Neotropics, phylogeography complex re-analyzed its complete geographic range. Two contiguous fragments ND4 gene were due to bias from differential haplogroup specificity using a previously designed sequence. At both (anthropic modification gradient) (demographic, fragmentation, biogeographic, climate) scales, lowest T. genetic diversity...
Abstract Localized cutaneous leishmaniasis represents a public health problem in many areas of M exico, especially the Y ucatan P eninsula. An understanding vector ecology and bionomics is great importance evaluations transmission dynamics L eishmania parasites. A field study was conducted county C alakmul, state ampeche, during period from N ovember 2006 to arch 2007. Phlebotomine sandfly vectors were sampled using enters for D isease ontrol light traps, baited isney traps S hannon traps....
Objective. To provide primary evidence of Trypanosoma cruzi landscape genetics in the Mexican Neotropics. Materials and methods. discrete typing units (DTU) prevalence were analyzed communities vectors, wildlife, livestock, pets, sympatric human populations using endpoint PCR sequencing all relevant amplicons from mitochondrial (kDNA) nuclear (ME, 18S, 24Sα) gene markers. Results. Although 98% infected sample-set (N=2 963) contained single or mixed infections DTUI (TcI, 96.2%) TcVI (22.6%),...
The Lutzomyia longipalpis complex has a wide but discontinuous distribution in Latin America, extending throughout the Neotropical realm between Mexico and northern Argentina Uruguay. In Americas, this sandfly is main vector of Leishmania infantum, parasite responsible for Visceral Leishmaniasis (VL). Lu. consists at least four sibling species, however, there no current consensus on number haplogroups, or their divergence. Particularly Argentina, have been few genetic analyses longipalpis,...
Collections from four localities, two of the High Plateau and Eastern Mountains Municipality Chiapas, near border with Guatemala, included 26 species new records for Mexico: Lutzomyia (Helcocyrtomyia) hartmanni (Fairchild & Hertig, 1957), Dampfomyia (Coromyia) disneyi (Williams, 1987), Psychodopygus bispinosus 1951), corossoniensis (LePont Pajot, 1978). These represent an updated total 50 in Mexico, 48 which are extant remaining fossils. The name Xiphopsathyromyia n. is proposed...
Abstract Nine sandfly species (Diptera: Psychodidae) are suspected or proven vectors of Leishmania spp. in the North and Central America region. The ecological niches for these nine were modelled three time periods overlaps all geographic predictions (G space), dimensions using pairwise comparisons equivalent (E calculated. Two Nearctic, six Neotropical one both bioregions occupied a reduced number distribution areas. niche projections most other than Lutzomyia shannoni ovallesi have not...
American visceral leishmaniasis (AVL) has two main scenarios of transmission as follows: scattered cases in rural areas and urban outbreaks. Urban AVL is active dispersion from the northeastern border Argentina-Paraguay-Brazil to South. The presence Lutzomyia longipalpis was initially reported environments northwestern country. Lu. longipalpis, environmental variables associated with its distribution, genetic diversity were assessed Salvador Mazza, Argentina, on Bolivia. analysis showed high...
This study was designed to assess whether churches in endemic dengue districts Merida, Mexico provide suitable breeding habitats for mosquitoes and are potential sites virus (DENV) transmission. Churches were inspected immature adult once every week from November 2015 October 2016. A total of 10,997 immatures five species collected. The most abundant Aedes aegypti (6,051) Culex quinquefasciatus (3,018). common source Ae. buckets followed by disposable containers. Adult collections yielded...
Abstract Fleas are important in public health due to their role as parasites and vectors of pathogens, including Rickettsia . The aim this study was evaluate the diversity, abundance prevalence fleas presence trifinio north‐east Argentina. from household synanthropic animals were obtained urban periurban areas. They taxonomically identified samples 227 86 pools analysed by polymerase chain reaction targeting gltA ompB genes spp. revealed that Ctenocephalides felis dominant on dogs, cats...
Aedes aegypti is the vector of arboviruses causing dengue, chikungunya and zika infections in Mexico. However, its presence public places has not been fully evaluated. In a cemetery from Merida, Yucatan, Mexico, productivity Ae. aegypti, gonotrophic cycle, females infected with were Immature adult mosquitoes inspected every two months between April 2016 to June 2017. For cycle length, daily pattern total parous female ratio was registered analyzed using time series analysis. sorted into...
Abstract Background A question of epidemiological relevance in Chagas disease studies is to understand Trypanosoma cruzi transmission cycles and trace the origins (re)emerging cases areas under vector or surveillance. Conventional parasitological methods lack sensitivity whereas molecular approaches can fill this gap, provided that an adequate sample be collected processed a nucleic acid amplification method developed standardized. We duplex qPCR assay for accurate detection quantification...
The Nyssomyia genus and Lutzomyia subgenus include medical important species that are Latin American leishmaniases vectors. Little is known about the phylogenetic relationships of closely-related in each these taxonomic groups morphologically indistinguishable or differentiated by very subtle details.We inferred within both using a cytochrome c oxidase subunit I (COI) fragment.The sampling was carried out from 11 Argentinean localities. For genetic analyses, we used GenBank sequences...
Objetivo. Sistematizar, evaluar y sintetizar la investigación original específica en México sobre zoonosis por Trypano-soma cruzi, los vectores (Triatominae: Hemiptera: Reduviidae) enfermedad de Chagas (EC). Material métodos. La fue identificada con PRISMA mediante cuatro sistemas búsqueda, usando criterios inclusión, se realizó asignación a 14 áreas temáticas evaluada técnicos. Resultados. De un total 1 410 registros, fueron elegidos 659 (46.7%) para valoración técnica, cuales, 221 (15.7%)...
Leishmaniases are endemic in southwestern Mexico, and different sand fly species infected with Leishmania mexicana Biagi. One of the most abundant vectors dominant is Bichromomyia olmeca (Vargas Díaz-Nájera). We analyzed genetic variability prevalence infections an focus: "the Ejido 20 de Junio" (Mancolona), Campeche, where patients leishmaniases reported throughout year. Genetic diversity analysis 102 sequences a 270-bp fragment 3´ end mitochondrial cytochrome b (cyt b) gene revealed 17...
is a species complex, and its members are responsible for the transmission of
Abstract Migonemyia migonei (Franҫa 1920) is a Phlebotominae of epidemiological importance due to its role as vector in leishmaniasis transmission cycles and broad geographic distribution South America. A few morphometric genetic studies have demonstrated the existence variability between geographically distant populations Brazil. The aim study was estimation distance morphospecies Mg. through analysis Cytochrome C oxidase subunit I (COI) sequences specimens captured Argentina those...