Journal
JOURNAL OF VIROLOGICAL METHODS
Volume 99, Issue 1-2, Pages 63-70Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0166-0934(01)00380-9
Keywords
influenza virus; multiplex PCR; typing; subtyping
Funding
- ODCDC CDC HHS [U50/CCU916558-01] Funding Source: Medline
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Influenza virus type and subtype specific primers were selected for use in reverse transcription polymerase chain reaction (RT-PCR). The selected primer sets were used in a single step RT-PCR of influenza virus RNA in multiplex format for the detection of virus type and subtypes. Three one step reaction conditions are optimized: (1) multiplex typing only, (2) multiplex subtyping of influenza A, and (3) multiplex typing and subtyping simultaneously. RNA from strains of influenza virus type A of subtypes H1N1, H3N2 and H5N1 and influenza virus type B was used for amplification and detection. The amplified DNA fragments were size analyzed for the presence of specific type and subtypes target DNA by agarose gel electrophoresis. The sensitivity of detection was about 0.01 TCID50 for both influenza type A and B when amplification was for typing alone. In multiplex subtyping or multiplex typing and subtyping simultaneously, the sensitivities for types and subtypes specific bands were 0.01-0.1 TCID50 in the tested volume. (C) 2002 Elsevier Science B.V. All rights reserved.
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