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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 104, No. 7, 2009, pp. 998-1002
Bioline Code: oc09207
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 104, No. 7, 2009, pp. 998-1002

 en Molecular and antigenic characterisation of ribosomal phosphoprotein P0 from Babesia bovis
Ramos, Carlos AN; Araújo, Flábio R; Souza, Ingrid IF; Oliveira, Renato HM; Elisei, Carina; Soares, Cleber O; Sacco, Ana MS; Rosinha, Grácia MS; Elisei, Leucio C & Alves, Carina

Abstract

Human adenoviruses (HAdV) and hepatitis A virus (HAV) are shed in the faeces and consequently may be present in environmental waters, resulting in an increase in pathogen concentration that can affect water quality and human health. The aim of this study was to evaluate an adsorption-elution method which utilizes negatively charged membrane HA to determine the efficient recovery of HAdV and HAV from different water matrices and to combine this procedure with a qualitative molecular method (nested RT-PCR and nested PCR). The best efficiency recovery was achieved in distilled water and treated wastewater effluent (100%) for both viruses and in recreational lagoon water for HAV (100%). The efficiency recovery was 10% for HAdV and HAV in seawater and 10% for HAdV in lagoon water. The viral detection limit by nested PCR for HAV in water samples ranged between 20-0.2 FFU/mL and 250 and 25 TCID50/mL for HAdV. In conclusion, these results suggest that the HA negatively charged membranes vary their efficiency for recovery of viral concentration depending upon the types of both enteric viruses and water matrices.

Keywords
virus recovery - negatively charged membrane - environmental waters - hepatitis A virus - adenovirus - PCR

 
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