title: Detection of H5, H7 and H9 subtypes of avian influenza viruses by multiplex reverse transcription-polymerase chain reaction.
abstract: Subtype-specific multiplex reverse transcription-polymerase chain reaction (RT-PCR) was developed to simultaneously detect three subtypes (H5, H7 and H9) of avian influenza virus (AIV) type A. The sensitivity of the multiplex RT-PCR was evaluated and compared to that of RT-PCR-enzyme-linked immunosorbent assay (ELISA) and conventional RT-PCR. While the sensitivity of the multiplex RT-PCR is as sensitive as the conventional RT-PCR, it is 10 times less sensitive than RT-PCR-ELISA. The multiplex RT-PCR is also as sensitive as the virus isolation method in detecting H9N2 from tracheal samples collected at day 3 and 5 post inoculation. Hence, the developed multiplex RT-PCR assay is a rapid, sensitive and specific assay for detecting of AIV subtypes.
authors.affiliation: Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
authors.forename: B
authors.initials: B
authors.lastname: Chaharaein
authors.forename: A R
authors.initials: AR
authors.lastname: Omar
authors.forename: I
authors.initials: I
authors.lastname: Aini
authors.forename: K
authors.initials: K
authors.lastname: Yusoff
authors.forename: S S
authors.initials: SS
authors.lastname: Hassan
mesh_terms: D000818:Animals; D001717:Birds; D004797:Enzyme-Linked Immunosorbent Assay; D053124:Influenza A Virus, H5N1 Subtype / Q000235:genetics / Q000302:isolation & purification; D053127:Influenza A Virus, H9N2 Subtype / Q000235:genetics / Q000302:isolation & purification; D009980:Influenza A virus / Q000235:genetics / Q000302:isolation & purification*; D005585:Influenza in Birds / Q000175:diagnosis / Q000821:virology*; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods*; D012680:Sensitivity and Specificity