Molecular epidemiology of Colombian Histoplasma capsulatum isolates obtained from human and chicken manure samples

ABSTRACT : The thermally dimorphic fungus Histoplasma capsulatum is the causative agent of histoplasmosis, one of the most prevalent endemic mycosis in the Americas. In tropical regions, agro-ecosystems require organic matter replacement, therefore, the use of organic fertilizers has increased disregarding the fact that certain number of such fertilizers might be contaminated with the fungus, and with their handling resulting in human cases and even outbreaks of histoplasmosis. Additionally, in Colombia, chicken manure is the most common raw material used in the production of organic fertilizers. In this work, we reported the isolation of this fungus from chicken manure, and genetically compared with 42 clinical isolates. The genetically compared environmental isolates grouped together with the clinical ones. Our result suggests that chicken manure may be one of H. capsulatum infection sources. Also, the phylogenetic analyses done with other H. capsulatum isolates indicate that the Colombian isolates are widely distributed in the relational tree thus reveling towards the great genetic diversity among the H. capsulatum Colombian isolates.

• Autores: Gómez Londoño, Luisa Fernanda; Arango Arteaga, Myrtha; McEwen Ochoa, Juan Guillermo; Gómez Guzmán, Oscar Mauricio; Zuluaga Rodríguez, Alejandra; Peláez Jaramillo, Carlos Alberto; Acevedo Ruiz, José Miguel; Taylor, María; Jiménez Alzate, María del Pilar
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2019
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/31126
• Acceso en línea: https://hdl.handle.net/10495/31126
• Palabra clave: Agricultura; Agriculture; Ciencias de la Tierra; Earth Sciences; Histoplasmosis; Compostaje; Composting; Ciencias del medio ambiente; Environmental sciences; Fertilizantes orgánicos; Organic fertilizers
• Rights: openAccess
• License: http://creativecommons.org/licenses/by-nc-nd/2.5/co/