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Revista Peruana de Medicina Experimental y Salud Publica
versión impresa ISSN 1726-4634
Resumen
ARDILA, Marlon M. et al. Molecular detection of the natural infection by trypanosomatid parasites in Didelphis marsupialis from a rural area in northern Colombia. Rev. perú. med. exp. salud publica [online]. 2023, vol.40, n.1, pp.79-85. Epub 24-Mar-2023. ISSN 1726-4634. http://dx.doi.org/10.17843/rpmesp.2023.401.11573.
We studied the prevalence of infection by trypanosomatid parasites in Didelphis marsupialis and its relationship with morphological/age aspects in a rural area of El Carmen de Bolivar, Colombia. Five visits were made to the Vereda El Alférez; each of which lasted three consecutive nights. During these visits, Tomahawk® traps were installed in the peridomestic and wild ecotopes of the Vereda El Alférez. Body measurements, sex and age were determined from the collected animals. Blood was extracted by cardiopuncture, after sedation, in order to obtain total deoxyribonucleic acid (DNA) and amplify the conserved region of the kinetoplast minicircle DNA (kDNA) of parasitic trypanosomatids. The association between morphological parameters of didelphids and their frequency of infection by parasitic trypanosomatids was determined by binomial regression. Thirty D. marsupialis specimens (60.0% females and 40.0% males/66.7% adults and 33.3% juveniles) were collected. Molecular diagnosis revealed a frequency of trypanosomatid parasite infection of 46.7%. Stage (p=0.024) was a determinant for infection. We discuss the role of D. marsupialis as a potential reservoir of parasitic trypanosomatids in the Vereda El Alférez.
Palabras clave : Leishmaniasis; Parasites; Didelphis; Colombia; DNA, Kinetoplast.