Enterocytozoon bieneusi detected by molecular methods in raw sewage and treated effluent from a combined system in Brazil
Mem. Inst. Oswaldo Cruz
; 112(6): 403-410, June 2017. tab, graf
Article
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| LILACS
| ID: biblio-841808
Biblioteca responsable:
BR1.1
ABSTRACT
BACKGROUND Enterocytozoon bieneusi are the most common microsporidia associated with different clinical manifestations such as diarrhoea, respiratory tract inflammation and acalculous cholecystitis, especially in immunocompromised patients. Infection usually occurs by ingestion of food and water contaminated with spores, but can also result from direct contact with spores through broken skin, eye lesions, and sexual transmission, depending on the microsporidian species. Although there are reports of E. bieneusi found in humans and animals in Brazil, there are no published studies of environmental samples examined by molecular methods. OBJECTIVES The purpose of this study was to verify the presence of E. bieneusi in raw sewage and treated effluent from a combined system by molecular methods. METHODS Raw sewage and treated effluent samples collected from a combined system were analysed for the presence of E. bieneusi using the internal transcriber spacer (ITS) region of E. bieneusi by nested polymerase chain reaction. FINDINGS The analysis revealed E. bieneusi presence and a novel genotype (EbRB) in one raw sewage sample and one treated effluent. MAIN CONCLUSIONS The presence of E. bieneusi in final effluent indicates that the combined system may not remove microsporidian spores. This study is the first report of E. bieneusi in environmental samples in Brazil.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
ADN de Hongos
/
Reacción en Cadena de la Polimerasa
/
Enterocytozoon
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Mem Inst Oswaldo Cruz
/
Mem. Inst. Oswaldo Cruz
/
Mem. Inst. Oswaldo Cruz (Online)
/
Memórias do Instituto Oswaldo Cruz (Impresso)
/
Proceedings of the Instituto Oswaldo Cruz
Asunto de la revista:
MEDICINA TROPICAL
/
PARASITOLOGIA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Brasil