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Mini-exon gene reveals circulation of TcI Trypanosoma cruzi (Chagas, 1909) (Kinetoplastida, Trypanosomatidae) in bats and small mammals in an ecological reserve in southeastern Mexico

Gómez Sánchez, Eliza F [autora] | Ochoa Díaz López, Héctor [autor] | Espinoza Medinilla, Eduardo E [autor] | Velázquez Ramírez, D. Daniel [autor] | Santos Hernández, Nancy G [autora] | Ruiz Castillejos, Christian [autor] | Vidal López, Dolores G [autora] | Moreno Rodríguez, Adriana [autora] | Flores Villegas, Any Laura [autora] | López Argueta, Eduardo [autor] | De Fuentes Vicente, José A [autor].
Tipo de material: Artículo
 en línea Artículo en línea Tipo de contenido: Texto Tipo de medio: Computadora Tipo de portador: Recurso en líneaTema(s): Trypanosoma cruzi | Enfermedad de chagas | Pequeños mamíferos | Actividades antropogénicas | EpidemiologíaTema(s) en inglés: Trypanosoma cruzi | Chagas disease | Small mammals | Anthropogenic activities | EpidemiologyDescriptor(es) geográficos: Centro Ecológico Recreativo El Zapotal, Tuxtla Gutiérrez (Chiapas, México) Nota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: ZooKeys. Número 1084 (2022), páginas 139–150. --ISSN: 1313-2970Número de sistema: 62348Resumen:
Inglés

A wide variety of mammals are involved in the sylvatic cycle of Trypanosoma cruzi, the causative agent of Chagas disease. In many areas in Latin America where T. cruzi is endemic, this cycle is poorly known, and its main reservoirs have not been identified. In this study we analyzed T. cruzi infection in bats and other small mammals from an Ecological Reserve in southeastern Mexico. From January through March 2021, we captured wild individuals to extract cardiac and peripheral blood, and infection was detected by PCR of the mini-exon gene. In bats, the prevalence of infection was 16.36%, while in small mam mals the prevalence was 28.57%. All of the samples that were positive for T. cruzi were identified as the TCI genotype. Our findings suggest that this zone, situated at the periphery of urban zones might have epidemiological relevance in the sylvatic cycle of T. cruzi and needs to be monitored. The infection of bats in this area is particularly concerning since the flight pattern of this populations overlaps with human set tlements. Despite being subject to conservation protections, there continue to be anthropogenic actions that disturb the study area, which could exacerbate risks to public health.

Recurso en línea: https://zookeys.pensoft.net/article/78664/
Lista(s) en las que aparece este ítem: Documentos sobre chagas
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Disponible para usuarios de ECOSUR con su clave de acceso

A wide variety of mammals are involved in the sylvatic cycle of Trypanosoma cruzi, the causative agent of Chagas disease. In many areas in Latin America where T. cruzi is endemic, this cycle is poorly known, and its main reservoirs have not been identified. In this study we analyzed T. cruzi infection in bats and other small mammals from an Ecological Reserve in southeastern Mexico. From January through March 2021, we captured wild individuals to extract cardiac and peripheral blood, and infection was detected by PCR of the mini-exon gene. In bats, the prevalence of infection was 16.36%, while in small mam mals the prevalence was 28.57%. All of the samples that were positive for T. cruzi were identified as the TCI genotype. Our findings suggest that this zone, situated at the periphery of urban zones might have epidemiological relevance in the sylvatic cycle of T. cruzi and needs to be monitored. The infection of bats in this area is particularly concerning since the flight pattern of this populations overlaps with human set tlements. Despite being subject to conservation protections, there continue to be anthropogenic actions that disturb the study area, which could exacerbate risks to public health. eng

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