High prevalence of intermediate leptospira spp. DNA in febrile humans from urban and rural Ecuador

Jorge Chiriboga, Verónica Barragan, Gabriela Arroyo, Andrea Sosa, Dawn N. Birdsell, Karool España, Ana Mora, Emilia Espín, María Eugenia Mejía, Melba Morales, Carmina Pinargote, Manuel Gonzalez, Rudy Hartskeerl, Paul Keim, Gustavo Bretas, Joseph N.S. Eisenberg, Gabriel Trueba

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41 Citas (Scopus)

Resumen

Leptospira spp., which comprise 3 clusters (pathogenic, saprophytic, and intermediate) that vary in pathogenicity, infect >1 million persons worldwide each year. The disease burden of the intermediate leptospires is unclear. To increase knowledge of this cluster, we used new molecular approaches to characterize Leptospira spp. in 464 samples from febrile patients in rural, semiurban, and urban communities in Ecuador; in 20 samples from nonfebrile persons in the rural community; and in 206 samples from animals in the semiurban community. We observed a higher percentage of leptospiral DNA–positive samples from febrile persons in rural (64%) versus urban (21%) and semiurban (25%) communities; no leptospires were detected in nonfebrile persons. The percentage of intermediate cluster strains in humans (96%) was higher than that of pathogenic cluster strains (4%); strains in animal samples belonged to intermediate (49%) and pathogenic (51%) clusters. Intermediate cluster strains may be causing a substantial amount of fever in coastal Ecuador.

Idioma originalInglés
Páginas (desde-hasta)2141-2147
Número de páginas7
PublicaciónEmerging Infectious Diseases
Volumen21
N.º12
DOI
EstadoPublicada - dic. 2015

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