title: Establishing a TaqMan-based real-time PCR assay for the rapid detection and quantification of the newly emerged duck Tembusu virus.
abstract: To establish an accurate, rapid, and a quantifiable method for the detection of the newly emerged duck Tembusu virus (DTMUV) that recently caused a widespread infectious disease in ducks in China, we developed a TaqMan-based real-time PCR assay by using E gene-specific primers and a TaqMan probe. This real-time PCR assay was 100 times more sensitive than the conventional PCR. The reproducibility and specificity of the real-time PCR assay were confirmed using plasmids containing E genes or RNAs and DNAs extracted from well-known viruses causing duck diseases. The reliability of this real-time PCR assay was confirmed in 19 of the 24 swab samples, 22 of the 24 tissue samples collected from experimentally infected ducks, as well as 15 of the 21 clinical samples collected from sick ducks since they were verified as DTMUV-positive. The results reveal that the newly established real-time PCR assay might be a useful diagnostic method for epidemiologically investigating and closely observing the newly emerged DTMUV.
authors: Division of Avian Infectious Diseases, Key Laboratory of Animal Parasitology of the Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 518 Ziyue Road, Minhang District, Shanghai 200241, China.
authors: Liping
authors: L
authors: Yan
authors: Pixi
authors: P
authors: Yan
authors: Jiewen
authors: J
authors: Zhou
authors: Qiaoyang
authors: Q
authors: Teng
authors: Zejun
authors: Z
authors: Li
mesh_terms: D000818:Animals; D002645:Chickens; D004247:DNA / Q000032:analysis / Q000096:biosynthesis; D017931:DNA Primers / Q000737:chemistry / Q000235:genetics; D004372:Ducks / Q000821:virology*; D004531:Eggs / Q000821:virology; D005416:Flavivirus / Q000235:genetics* / Q000302:isolation & purification; D018177:Flavivirus Infections / Q000175:diagnosis / Q000662:veterinary / Q000821:virology; D011201:Poultry Diseases / Q000175:diagnosis / Q000821:virology; D060888:Real-Time Polymerase Chain Reaction / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D017931:DNA Primers; D004247:DNA