INVESTIGADORES
MACCHIAROLI Natalia
artículos
Título:
Implementation of new tools in molecular epidemiology studies of Echinococcus granulosus sensu lato in South America
Autor/es:
HECTOR GABRIEL AVILA; GUILHERME B. SANTOS; MARCELA A. CUCHER; NATALIA MACCHIAROLI; MATÍAS G. PÉREZ; GERMÁN BALDI; OSCAR JENSEN; VERÓNICA PÉREZ; RAÚL LÓPEZ; PERLA NEGRO; EXEQUIEL SCIALFA; ARNALDO ZAHA; HENRIQUE B. FERREIRA; MARA ROSENZVIT; LAURA KAMENETZKY
Revista:
PARASITOLOGY INTERNATIONAL
Editorial:
ELSEVIER IRELAND LTD
Referencias:
Lugar: Amsterdam; Año: 2017
ISSN:
1383-5769
Resumen:
The aimof thiswork was to determine Echinococcus granulosus sensu lato species and genotypes in intermediate and definitive hosts and in human isolates from endemic regions of Argentina and Brazil including those where nomolecular data is available by a combination of classical and alternativemolecular tools. A total of 227 samples were isolated from humans, natural intermediate and definitive hosts. Amplification of cytochrome c oxidase subunit I gene fragmentwas performed and a combination of AluI digestion assay, High ResolutionMelting analysis(HRM) assay and DNA sequencing was implemented for Echinococcus species/genotype determination. E. granulosus sensu stricto (G1) was found in sheep (n = 35), cattle (n = 67) and dogs (n = 5); E. ortleppi (G5) in humans (n = 3) and cattle (n = 108); E. canadensis (G6) in humans (n = 2) and E. canadensis (G7) in pigs (n = 7). We reported for the first time the presence of E. ortleppi (G5) and E. canadensis (G6) in humans from San Juan and Catamarca Argentinean provinces and E. canadensis (G7) in pigs from Cordoba Argentinean province. In this work, we widened molecular epidemiology studies of E. granulosus s. l. in South America by analyzing several isolates from definitive and intermediate hosts, including humans from endemic regions were such information was scarce or unavailable. The presence of different species/genotypes in the same region and host species reinforce the need of rapid and specific techniques for accurate determination of Echinococcus species such as the ones proposed in this work.