Marco Torres-Castro

Marco Torres-Castro
Universidad Autónoma de Yucatán | UADY · CIR Biomedical Unit

MVD, MSc, DrSc
Currently, we are working with bats, dogs, rodents, opossums, Leptospira, Tick-borne diseases, viruses, and beyond.

About

98
Publications
30,876
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275
Citations
Introduction
I work with synanthropic or wild animals, participating in projects for their identification as reservoirs of zoonotic pathogens such as Leptospira spp., Trypanosoma cruzi, Toxoplasma gondii, Rickettsia spp., Borrelia spp., etc. Besides, I have performed histopathological studies in these same animals, naturally infected.
Additional affiliations
March 2015 - present
Universidad Autónoma de Yucatán
Position
  • Professor (Associate)
Education
June 2016 - December 2019
Universidad Autónoma de Yucatán
Field of study
  • Health Sciences
August 2011 - September 2013
Universidad Autónoma de Yucatán
Field of study
  • Ciencias Agropecuarias
August 2005 - September 2010

Publications

Publications (98)
Article
Full-text available
El objetivo del presente trabajo es presentar una breve descripción de las características del SARS-CoV-2, así como mencionar algunos reportes alrededor del mundo sobre la infección de este virus en perros domésticos.
Article
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El objetivo del presente estudio fue detectar ADN de Toxoplasma gondii en muestras de músculo esquelético y de riñón recolectados de pequeños roedores silvestres, capturados en 10 localidades de la península de Yucatán, México (estados de Campeche, Quintana Roo y Yucatán) en 2018-2019. Se capturaron 127 roedores pertenecientes a siete especies. A t...
Article
The genus Rickettsia encompasses several species grouped in two main clusters, the Typhus and the Transitional group. The latter group contains Rickettsia felis, an endosymbiont of several arthropods with an uncertain human pathogenicity and whose most efficient transmission mechanism described so far is transovarial. The aim of this study was to e...
Article
Las bacterias espiroquetas Borrelia burgdorferi sensu lato (s.l.) y Leptospira spp. ocasionan la borreliosis de Lyme y leptospirosis, respectivamente, ambas enfermedades zoonóticas de importancia en salud pública. En sus respectivos ciclos epidemiológicos, los pequeños roedores son hospedadores accidentales y reservorios naturales de estas bacteria...
Poster
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Es un virus zoonótico (transmisible de animales a seres humanos) que circula en aves (reservorio natural) y es transmitido por la picadura de mosquitos (vectores). Pertenece al género Flavivirus, el cual engloba otros virus como dengue, fiebre amarilla y zika.
Poster
Full-text available
Trypanosoma cruzi es el agente causal de la enfermedad de Chagas, también conocida como tripanosomiasis americana. Esta enfermedad es importante por la cantidad elevada de personas que la sufren, la cual según la Organización Mundial de la Salud (OMS) asciende hasta los 8 millones. La mayor parte de ellas vive en alguno de los países de América Lat...
Article
Human tick-borne rickettsioses are caused by Rickettsia africae, Rickettsia massiliae, Rickettsia parkeri, Rickettsia philipi, and Rickettsia rickettsii in the American continent. Rickettsia parkeri represents the second most important agent of eschar-associated spotted fever throughout the American continent. In Mexico, the presence of three strai...
Article
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The tayra Eira barbara is a Neotropical mustelid considered as an endangered species by Mexican environmental authorities. Despite the considerable information available on the biology and ecology of E. barbara, little is known about its helminth fauna. Here, we provided new records of nematodes from a road-killed tayra in Calakmul, Campeche, Mexic...
Article
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After the tropical storm Cristobal, we performed special adult entomological collections in the peri-domicile of 35 houses from 25 neighborhoods of Mérida, Yucatan, Mexico in response to complaints from the community about an increased nuisance due to an abundance of mosquitoes. A total of 1,275 specimens from four genera and 13 species were collec...
Article
Full-text available
Objetivo. Determinar la circulación del virus del Oeste del Nilo (VON) en caballos del oriente de Yucatán, México. Materiales y métodos. Por conveniencia se estudiaron 184 caballos localizados en 23 unidades de producción de los municipios de Tizimín y Panabá, Yucatán. De cada caballo se obtuvo una muestra de suero sanguíneo, la cual fue evaluada c...
Article
Full-text available
Objective. To determine the circulation of West Nile virus (WNV) in horses from the eastern Yucatán, Mexico. Materials and Methods. For convenience, 184 horses from 23 production units in the municipalities of Tizimín and Panabá, Yucatán, were studied. A blood serum sample was obtained from each studied horse and evaluated with an immunoglobulin M...
Article
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The Rhipicephalus sanguineus group encompasses at least 12 validated species of Palearctic and Afrotropical hard ticks, which are relevant in veterinary medicine and public health. The taxonomy of R. sanguineus s.s., has been particularly intensely debated, due to its wide geographic distribution, morphological variants, parasite-host associations,...
Article
Full-text available
Introducción. Las especies patógenas del género Leptospira ocasionan la leptospirosis en seres humanos y animales susceptibles. Los roedores son los reservorios naturales de estas bacterias; otros animales silvestres son hospederos accidentales. Las musarañas han sido involucradas en el ciclo de transmisión de este patógeno en varios países; sin em...
Article
Full-text available
Introducción. Los murciélagos han sido reportados como hospederos del protozoario Trypanosoma cruzi, agente etiológico de la tripanosomiasis americana, enfermedad zoonótica endémica en México. Objetivo. Describir la infección con T. cruzi en murciélagos capturados en los estados de Campeche y Yucatán, México. Materiales y métodos. Se realizaron cap...
Article
Infections with viruses of the Flavivirus genus were explored in 22 bats (Artibeus jamaicensis) from Merida, Yucatan, Mexico. The detection of the viral genus was performed by RT‐PCR, and infections with dengue (DENV 1–4), West Nile (WNV) and Zika (ZIKV) viruses were subsequently explored. Sequences from positive products were analysed using the BL...
Article
Full-text available
Objetivo. Evidenciar la circulación de Leptospira spp. en sangre de perros de una comunidad rural del estado de Yucatán, México. Materiales y métodos. Se recolectaron muestras sanguíneas en 120 perros de Maxcanú, Yucatán. Además, se registraron características como sexo, edad, raza y se preguntó a los dueños sobre el historial de vacunas. Las muest...
Article
Full-text available
Objective. To assess the frequency of Leptospira spp. in blood of dogs in a rural community in the state of Yucatan, Mexico. Materials and methods. Blood samples were collected from 120 dogs from Maxcanú, Yucatan. Characteristics such as sex, age, and breed were recorded, and owners were asked about the vaccination history. The samples were transpo...
Article
Full-text available
Introducción. El programa de enfermedades transmitidas por vectores en México tiene una red establecida de ovitrampas para la vigilancia entomológica de Aedes spp. Los Servicios de Salud del estado de Yucatán, en respuesta a reportes de Aedes albopictus en la periferia de Mérida, capital del estado, incrementaron la especificidad de dicha vigilanci...
Article
The genus Rickettsia encompasses 35 valid species of intracellular, coccobacilli bacteria that can infect several eukaryotic taxa, causing multiple emerging and re-emerging diseases worldwide. This work aimed to gather and summarise the current knowledge about the genus Rickettsia in Mexico, updating the taxonomy of the bacteria and their hosts by...
Article
Surveys on parasites of bats from the Americas have been conducted, but information on helminths is still scarce, especially in the Neotropical region. In Mexico, there are species of bats that lack of a record for helminth species, such as members of the family Noctilionidae. The present study describes for the first time the helminths of Noctilio...
Article
Full-text available
Background. Micromammals are reservoirs of zoonotic parasites such as viruses, bacteria, protozoans and helminths. Objective. To present a review of the published literature on the study of zoonotic (or potential zoonotic) parasites of micromammals in the Yucatan Peninsula (PYU), Mexico, conducted by research groups of the Campus de Ciencias Biológ...
Poster
Full-text available
Describir la infección con T. gondii en murciélagos capturados en sitios de Campeche y Yucatán, México.
Article
The aim of the study was to describe the epidemiological factors associated with the risks of recent Rickettsia exposure in inhabitants of a rural population from Yucatán, Mexico. The study included 130vinhabitants from Maxcanú, Yucatán. Blood samples were collected to detect IgM and IgG antibodies against Rickettsia typhi and R. rickettsii by an i...
Article
Full-text available
Objetivo. Reportar la infección con Leptospira en ríñones de murciélagos de Campeche y Yucatán, México, a través de la amplificación por PCR de dos fragmentos distintos del gen 16S RNA ribosomal. Materiales y métodos. Se realizaron capturas en un sitio de Campeche y dos de Yucatán. A los murciélagos capturados se les aplicó la eutanasia y se les r...
Article
Full-text available
Objective. To report the infection with Leptospira in the kidneys of bats from Campeche and Yucatán, Mexico, through the amplification by PCR of two different 16S RNA ribosomal gene fragments. Materials and methods. Bat captures were carried out at one site in Campeche and two sites in Yucatán. Euthanasia was applied to the captured bats and a necr...
Article
Full-text available
Introducción. Trypanosoma cruzi es agente causal de la tripanosomiasis americana, enfermedad endémica en México. Los roedores Mus musculus y Rattus rattus son reservorios del parásito, el cual invade fibras cardiacas y desarrolla nidos parasitarios y diversas lesiones. Los estudios histopatológicos en roedores naturalmente infectados son escasos. O...
Article
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Cysticercus fasciolaris is the larval stage of Taenia taeniaeformis, a parasite that predominantly affects felines. It, however, has zoonotic significance since humans can be accidental hosts. Rodents and lagomorphs act as Intermediate hosts in this parasite’s life cycle. The aim of this study was to determine the natural occurrence of infection by...
Article
Full-text available
Toxoplasma gondii es un protozoario parásito reconocido como el agente causal de la toxoplasmosis, enfermedad zoonótica que afecta a humanos y animales domésticos o silvestres. En México, representa un problema de salud pública y veterinaria, sobre todo en regiones con climas tropicales y subtropicales. Los murciélagos han sido identificados como h...
Article
Full-text available
Introducción. Las bacterias del género Rickettsia son agentes causales de las rickettsiosis, enfermedades zoonóticas transmitidas por ectoparásitos. En Yucatán, ocurrió un brote en habitantes de Bolmay, Valladolid; sin embargo, no se identificó el probable artrópodo vector. Objetivo. Analizar la presencia de Rickettsia spp. en garrapatas que infes...
Article
Full-text available
Toxoplasma gondii is an obligate intracellular protozoan parasite, recognized as the etiologic agent of toxoplasmosis, a zoonotic endemic disease in several countries, including Mexico. In the Yucatan State of Mexico, Toxoplasma infection has a high impact in both human and domestic animal health. Wild animals can also host zoonotic pathogens such...
Article
Full-text available
Objective. To determine the presence of Rickettsia typhi in synanthropic rodents captured in the rural community of Bolmay, Yucatan, Mexico, an area with history of murine typhus cases. Materials and methods. Thirty Mus musculus, 6 Rattus rattus and 1 Heteromys gaumeri were examined. Total DNA was obtained of rodent’s spleen. The identification of...
Article
Full-text available
The protozoan parasite Trypanosoma cruzi is the causative agent of the Chagas disease, which is endemic in southeastern Mexico and is transmitted by the vector Triatoma dimidiata (triatomide). T. cruzi infect a great variety of domestic and wild mammals; rodents are considered one of the most important reservoirs of the parasite in the transmission...
Article
Full-text available
Introducción. La leptospirosis es una enfermedad zoonótica endémica en México reconocida como un problema de salud pública y veterinaria, ocasionada por bacterias del género Leptospira. Los roedores son los reservorios más relevantes de Leptospira spp., debido a que la bacteria se establece y reproduce en su tejido renal y es excretada a través de...
Presentation
Full-text available
5a Jornada Todos Somos Modelo.
Article
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El conocimiento de la epidemiología de la leptospirosis es fundamental para el diagnóstico correcto y oportuno, principalmente en países y regiones donde se presenta junto a otras enfermedades febriles.
Article
Full-text available
El objetivo de este trabajo es presentar una breve descripción de la epidemiología del Torque Teno Virus, así como establecer la actualidad del escenario de su estudio en México. Además, hacemos mención de los estudios hechos en México y en Yucatán, específicamente en el Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, de la Universidad A...
Article
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The design of an integrative pest management program for rodents depends on an understanding of the biology and ecology of pest species. Here, we describe the abundance, and demographic and reproductive parameters of Mus musculus (House Mouse) in Mérida, Yucatán, México. A total of 906 house mice were trapped over 3 dry seasons (2009–2014) in a rur...
Presentation
Full-text available
Algunos aspectos epidemiológicos de las enfermedades emergentes y reemergentes. Su importancia a nivel mundial y regional.
Article
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Leptospira spp. is a spirochete bacteria, causal agent of leptospirosis, zoonotic disease endemic in México that represents a serious public health and veterinary problem. Rodents are recognized as the most important reservoirs of this bacteria, which is transmitted mainly through direct or indirect contact with the Leptospira spp. excreted in the...
Article
Full-text available
The aim of this paper was to study the occurrence of helminths in Mus musculus and Rattus rattus from urban, suburban and rural settlements in Yucatán, Mexico; and to analyse the host factors (e.g. sex) related to helminths’ distribution. Helminths in a total of 279 rodents were surveyed by visual examination of the liver for metacestodes and faeca...
Article
Full-text available
Los roedores sinantrópicos participan en el ciclo infeccioso de numerosas enfermedades zoonóticas de importancia a nivel mundial y nacional, ya sea como reservorios, hospederos intermediarios u hospederos de los ectoparásitos vectores que transmiten a los agentes etiológicos. En Yucatán, México, las especies más frecuentes son Rattus rattus y Mus m...
Poster
Full-text available
66th WDA Annual International Conference; 5th Kalaan Kab International Congress on Disease Ecology; 3rd Conference of the WDA Latin American Section
Poster
Full-text available
66th WDA Annual International Conference; 5th Kalaan Kab International Congress on Disease Ecology; 3rd Conference of the WDA Latin American Section
Poster
Full-text available
66th WDA Annual International Conference; 5th Kalaan Kab International Congress on Disease Ecology; 3rd Conference of the WDA Latin American Section
Poster
Full-text available
66th WDA Anual International Conference; 5th Kalaan Kab International Congress on Disease Ecology; 3rd Conference of the WDA Latin American Section
Poster
Full-text available
66th WDA Annual International Conference; 5th Kalaan Kab International Congress on Disease Ecology; 3rd Conference of the WDA Latin American Section
Article
Full-text available
El objetivo de la presente investigación fue estudiar la presencia de flavivirus en roedores de Yucatán, México, mediante una prueba de Reacción en Cadena de la Polimerasa (PCR), en su variante semi-anidada. Se capturaron 90 roedores (87 Rattus rattus, dos Heteromys gaumeri y un Mus musculus) y se les recolectó una muestra de suero sanguíneo. Las 9...
Article
The house mouse ( Mus musculus ) and the black rat ( Rattus rattus ) are reservoir hosts for zoonotic pathogens, several of which cause neglected tropical diseases (NTDs). Studies of the prevalence of these NTD-causing zoonotic pathogens, in house mice and black rats from tropical residential areas are scarce. Three hundred and two house mice and 1...
Article
Anthropocommensal rodents live in close proximity to humans in many habitats around the world. They are a threat to public health because of the pathogens they carry. Recent studies in Mérida, Yucatán, México, have shown that commensal rodents harbor potential zoonotic pathogens such as bacteria, helminths, and viruses. In this study, we describe r...
Article
Full-text available
Introducción. Rickettsia typhi es la bacteria causante del tifus múrido o endémico, el cual es transmitido al ser humano principalmente por medio de las heces infectadas de pulgas y en cuyo ciclo de infección se encuentran involucrados distintos animales sinantrópicos y domésticos. En la comunidad rural de Bolmay, Yucatán, México, se reportaron cas...
Article
Full-text available
Toxoplasma gondii is an obligate intracellular parasite recognized as the etiological agent of Toxoplasmosis, a zoonotic disease endemic in different countries worldwide. In Mexico, the disease is recognized as a human and animal health problem. T. gondii sporozoites have the capacity of been released from the gut lumen and infect several tissues,...
Article
Full-text available
Borna Disease Virus (BDV) causes a progressive non-suppurative meningoencephalitis that sometimes occurs in mortality; this disease has been reported for over two centuries ago in horses, sheep and cats in Central Europe and some regions of Asia. Currently, it is known that it causes neurological symptoms in various species of vertebrates including...
Conference Paper
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El Virus de Papiloma Humano (HPV) posee más de 230 genotipos. Según el grado de malignidad se clasifican en bajo y alto riesgo oncogénico. Las revisiones sistemáticas en México, han encontrado presencia de HPV en 23.5% de los casos de cáncer en cavidad bucal. En México, el HPV de alto riesgo oncogénico más común es el genotipo 16 (HPV 16). Objetivo...
Article
Full-text available
Toxoplasma gondii is an obligate intracellular parasite recognized as a causal agent of toxoplasmosis; zoonotic disease endemic in many countries worldwide, including Mexico. Different species of animals participate in the wild cycle infection, including opossums of the species Didelphis virginiana. Thirteen D. virginiana were captured in Yucatan,...