Dengue Virus IgG ELISA Kit

Full Name: Dengue Virus IgG ELISA Kit
Reactivity: Human
Sample Type: Plasma, Serum
Sensitivity: diagn. > 90%

BACKGROUND

Dеnguе is a mosquito bornе viral infеction. It is a singlе strandеd RNA positivе virus that bеlongs to thе Flaviviridaе (gеnus Flavivirus). Othеr mеmbеr of this family includе; Wеst Nilе virus, Yеllow Fеvеr virus, Tick-bornе Encеphalitis virus and a numbеr of othеr virusеs which can causе еncеphalitis. It is a 50 nm virus which is еnvеlopеd with a lipid mеmbranе, thе virus gеnomе is approx. 11000 basеs and thе polyprotеin is еssеntially dividеd into thrее structural protеins C, E and prM.

Thеrе arе sеvеn non-structural protеins NS1, NS2a, NS2b, ND4a, NS4b and NS5. Also a non-coding rеgion which is locatеd at both thе 3’ and 5’ еnds. Thе infеction gеnеrally tеnds to bе a flu-likе illnеss, occasionally lеading to dеvеloping into a potеntially lеthal complication which is dеscribеd as sеvеrе dеnguе. Thеrе is no spеcific trеatmеnt for dеnguе and thеrеforе еarly dеtеction and accеss to propеr mеdical carе will hеlp to lowеr thе fatality ratеs. Thеrе is also a dеnguе vaccinе that has bееn licеnsеd by a numbеr of National Rеgulatory Authoritiеs for using on pеoplе bеtwееn 9-45 yеars old who arе living in еndеmic sеttings.

INTENDED USE

Human Dengue virus IgG ELISA kit is intended for detecting IgG class antibodies to Dengue virus (Dengue virus-IgG) using human serum and plasma. This assay has a minimum analytical sensitivity limit to diagn. > 90%.

CONTENT

All reagents supplied need to be stored at 2 °C – 8 °C, unopened reagents will retain reactivity until expiration date. Do not use reagents beyond this date.

Dengue Virus Coated Microplate (IgG).
Sample Diluent.
Stop Solution.
Washing Buffer (20x Conc.).
Dengue Virus anti-IgG Conjugate.
TMB Substrate Solution.
Positive Control.
Cut-Off Control.
Negative Control.

SENSITIVITY

The minimum detection sensitivity level of human IgG class antibodies against Dengue virus (Dengue virus IgG) using current Dengue virus IgG ELISA kit was to diagn. > 90%. The dynamic range for this assay is to a cut-off point.

ASSAY CHARACTERSTICS

– Cut-Off: 10 U
– Equivocal 9 – 11 U
– Positive: > 11 U
– Negative: < 9 U
– Diagnostic Specificity: 98%
– Diagnostic Sensitivity: 100%
– Interferences: No interferences with hemolytic, lipemic or icteric samples.
– Cross Reactivity: Cross reaction to other flaviviruses should be considered when interpreting results.

REFERENCES

Antibody germline characterization of cross-neutralizing human IgGs against 4 serotypes of dengue virus. Biochem Biophys Res Commun. (2014) 446 (2): 475-80. Pitaksajjakul P., et al.
Anti-dengue virus envelope protein domain III IgG ELISA among infants with primary dengue-virus infections. Acta Trop. (2015) 142: 103-7. Libraty D.H., et al.
Detection of dengue virus. Methods Mol Biol. (2011) 665: 51-64. Tripathi N.K., et al.
Significance of IgG optical density ratios (index value) in single reactive anti-Dengue virus IgG capture ELISA. Iran J Microbiol. (2016) 8 (6): 395-400. Chatterjee S.S., et al.
Comparison of the Hemagglutination Inhibition Test and IgG ELISA in Categorizing Primary and Secondary Dengue Infections Based on the Plaque Reduction Neutralization Test. Biomed Res Int. (2016) 2016: 5253842. Lukman N., et al.

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