title: Detection and surveillance of viral hemorrhagic septicemia virus using real-time RT-PCR. II. Diagnostic evaluation of two protocols.
abstract: Two real-time reverse transcription polymerase chain reaction (rRT-PCR) assays under consideration for deployment to multiple testing laboratories across the USA were evaluated for diagnostic sensitivity and specificity on tissue homogenates obtained from natural and experimental viral hemorrhagic septicemia (VHS)-infected fish. Estimates for diagnostic specificity using virus isolation as the reference method were similar between laboratories regardless of the assay. Diagnostic sensitivity estimates of 0.96 (95% CI: 0.95, 0.97) for Jonstrup et al. (2013)'s assay (J Fish Dis 36:9-23) exceeded the diagnostic sensitivity of 0.85 (95% CI: 0.83, 0.87) for Phelps et al. (2012)'s assay (J Aquat Anim Health 24:238-243). The Jonstrup rRT-PCR assay is robust as demonstrated by high sensitivity and specificity estimates across laboratories and can be used as a valuable tool for targeted surveillance and for testing of suspect VHSV samples.
authors.affiliation: Diagnostic Virology Laboratory, National Veterinary Services Laboratories, VS, APHIS, USDA, Ames, Iowa 50010, USA.
authors.forename: Janet V
authors.initials: JV
authors.lastname: Warg
authors.forename: Travis
authors.initials: T
authors.lastname: Clement
authors.forename: Emily R
authors.initials: ER
authors.lastname: Cornwell
authors.forename: Angela
authors.initials: A
authors.lastname: Cruz
authors.forename: Rodman G
authors.initials: RG
authors.lastname: Getchell
authors.forename: Cem
authors.initials: C
authors.lastname: Giray
authors.forename: Andrew E
authors.initials: AE
authors.lastname: Goodwin
authors.forename: Geoffrey H
authors.initials: GH
authors.lastname: Groocock
authors.forename: Mohamed
authors.initials: M
authors.lastname: Faisal
authors.forename: Robert
authors.initials: R
authors.lastname: Kim
authors.forename: Gwenn E
authors.initials: GE
authors.lastname: Merry
authors.forename: Nicholas B D
authors.initials: NB
authors.lastname: Phelps
authors.forename: Monica M
authors.initials: MM
authors.lastname: Reising
authors.forename: Isaac
authors.initials: I
authors.lastname: Standish
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Kathy
authors.initials: K
authors.lastname: Toohey-Kurth
mesh_terms: D000818:Animals; D005399:Fishes; D005838:Genotype; D031941:Hemorrhagic Septicemia, Viral / Q000175:diagnosis* / Q000821:virology; D029141:Novirhabdovirus / Q000235:genetics / Q000302:isolation & purification*; D011159:Population Surveillance; D012367:RNA, Viral / Q000235:genetics / Q000302:isolation & purification; D060888:Real-Time Polymerase Chain Reaction / Q000379:methods*; D015203:Reproducibility of Results; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods*; D012680:Sensitivity and Specificity; D013045:Species Specificity
chemical_list: D012367:RNA, Viral