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. 2006 Aug;135(2):235-9.
doi: 10.1016/j.jviromet.2006.03.009. Epub 2006 May 2.

A single tube RT-PCR assay for the detection of mosquito-borne flaviviruses

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A single tube RT-PCR assay for the detection of mosquito-borne flaviviruses

M Ayers et al. J Virol Methods. 2006 Aug.

Abstract

Mosquito-borne flaviviruses include several important agents of human disease and have provided striking examples of emerging infections. In this study we present the design and validation of a single tube RT-PCR assay using a pair of consensus primers for the detection of mosquito-borne flaviviruses. Sequencing of the amplicons permits the species identification. The assay was validated using RNA from the yellow fever virus vaccine strain and from representative strains of dengue viruses 1, 2, 3 and 4, West Nile virus, Kunjin virus (a clade of West Nile virus), and St. Louis encephalitis virus.

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Figures

Fig. 1
Fig. 1
Alignments calculated from the nucleotide sequences of several flavivirus species with the primer FLAVI-1 (A) or with the reverse-complemented sequence of primer FLAVI-2 (B). Dots indicate identity with the consensus sequence on top of the alignment. West Nile virus strain NY2000 (wnny): GenBank accession #AF404756; West Nile virus strain MD2000 (wnmd): #AF404753; West Nile virus strain Eg 101 (wneg 101): #AF260968; Kunjin virus: #D00246; St. Louis encephalitis virus (sle): AF013416; Murray Valley encephalitis (mve): NC_000943; Japanese encephalitis virus (jev): AF254452; Usutu virus: #AF013412; dengue virus 1 (den1): AB074766; dengue virus type 2 (den2): NC_001474; dengue virus type 3 (den3): NC_001475; dengue virus type 4 (den4): NC_002640; yellow fever virus (yfv): #YFV54798.
Fig. 2
Fig. 2
Phylogenetic tree calculated from the predicted sequences of amplicons generated by the RT-PCR assay. Bootstrap values are indicated (as percentage) above the nodes. Scale: substitution/site. WNV(NY): West Nile virus strain NY2000; WNV(Md): West Nile virus strain Md2000; WNV(Eg 101): West Nile virus strain Eg 101; JEV: Japanese encephalitis virus; MVE: Murray Valley encephalitis; SLE: St. Louis encephalitis virus; YFV: yellow fever virus.

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