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Title: Magnetic bead technology for viral RNA extraction from serum in blood bank screening
Authors: Albertoni, Guilherme Ambrozio [UNIFESP]
Arnoni, Carine Prisco
Araujo, Patricia Regina Barboza
Andrade, Sheila Siqueira [UNIFESP]
Carvalho, Fabrício Oliveira
Girão, Manoel João Batista Castello [UNIFESP]
Schor, Nestor [UNIFESP]
Barreto, José Augusto
Associação Beneficente de Coleta de Sangue
Universidade Federal de São Paulo (UNIFESP)
Keywords: HCV
reverse transcriptase polymerase chain reaction
blood banks
Issue Date: 1-Dec-2011
Publisher: Brazilian Society of Infectious Diseases
Citation: Brazilian Journal of Infectious Diseases. Brazilian Society of Infectious Diseases, v. 15, n. 6, p. 547-552, 2011.
Abstract: Nucleic acid amplification testing (NAT) was recently recommended by Brazilian legislation and has been implemented at some blood banks in the city of São Paulo, Brazil, in an attempt to reduce blood-born transmission of human immunodeficiency virus (HIV) and hepatitis C virus. OBJECTIVE: Manual magnetic particle-based extraction methods for HIV and HCV viral nucleic acids were evaluated in combination with detection by reverse transcriptase - polymerase chain reaction (RT-PCR) one-step. METHODS: Blood donor samples were collected from January 2010 to September 2010, and minipools of them were submitted to testing. ELISA was used for the analysis of anti-HCV/HIV antibodies. Detection and amplification of viral RNA was performed using real-time PCR. RESULTS: Out of 20.808 samples screened, 53 samples (29 for HCV and 24 for HIV) were confirmed as positive by serological and NAT methods. CONCLUSION: The manual magnetic bead-based extraction in combination with real-time PCR detection can be used to routinely screen blood donation for viremic donors to further increase the safety of blood products.
ISSN: 1413-8670
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