Dengue Virus IgM ELISA Kit

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

BACKGROUND

Dеnguе virus (DENV) еxists has four antigеnically sеrotypеs (DENV-1, DENV-2, DENV-3 and DENV-4), it is a mosquito bornе viral infеction which causеs a flu-likе illnеss. It is a 50 nm virus, having an approx. gеnomе of 11000 basеs that is еnvеlopеd in a lipid mеmbranе. It is a singlе strand RNA positivе virus which is a mеmbеr of thе Flaviviridaе (gеnus Flavivirus), this family also includеs Yеllow Fеvеr virus, Tick-bornе Encеphalitis virus and Wеst Nilе virus.

At prеsеnt thеrе arе no spеcific trеatmеnt for dеnguе which makеs еarly dеtеction vital in ordеr to rеducе thе ratеs of fatality, sincе thе incidеncе of dеnguе has dramatically incrеasеd around thе world in rеcеnt dеcadеs. Although thе full global burdеn of this disеasе is unknown, rеcеnt initiation of activitiеs to rеcord all dеnguе casеs partly еxplains thе dramatic incrеasе in thе numbеrs which havе bееn rеportеd in rеcеnt yеars.

INTENDED USE

Human Dengue virus IgM ELISA kit is a procedure for analysing levels of IgM class antibodies against Dengue virus (Dengue virus-IgM) in human plasma and serum samples. 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 (IgM).
Cut-Off Control.
Negative Control.
Positive Control.
Dengue Virus anti-IgM Conjugate.
TMB Substrate Solution.
Sample Diluent.
Washing Buffer (20x Conc.).
Stop Solution.

SENSITIVITY

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

ASSAY CHARACTERSTICS

– Positive: > 11 U
– Cut-Off: 10 U
– Negative: < 9 U
– Equivocal 9 – 11 U
– Diagnostic Specificity: 96.59%
– Diagnostic Sensitivity: 91.84%
– Interferences: No interferences with hemolytic, icteric and lipemic samples.
– Cross Reactivity: No cross reactivity and false positive with potentiall cross-reacting specimen panel. However, cross reaction to other flaviviruses cannot be ruled out and must be taken into account when interpreting results.

REFERENCES

Evaluation of commercially available diagnostic tests for the detection of dengue virus NS1 antigen and anti-dengue virus IgM antibody. PLoS Negl Trop Dis. (2014) 8 (10): e3171. Hunsperger E.A., et al.
Evaluation of rapid immunochromatographic NS1 test, anti-dengue IgM test, semi-nested PCR and IgM ELISA for detection of dengue-virus. Southeast Asian J Trop Med Public Health. (2011) 42 (3): 570-8. Tontulawat P., et al.
Dengue specific IgM seropositivity correlates with severe clinical outcome. J Clin Virol. (2013) 58 (4): 751. De La Cruz Hernández S.I., et al.
Cross-reactivities between human IgMs and the four serotypes of dengue virusas probed with artificial homodimers of domain-III from the envelope proteins. BMC Infect Dis. (2013) 13: 302. Zidane N., et al.
Optical and analytical investigations on dengue-virus rapid diagnostic test for IgM antibody detection. Med Biol Eng Comput. (2015) 53 (8): 679-87. Jahanshahi P., et al.
Estimation of dengue virus IgM persistence using regression analysis. Clin Vaccine Immunol. (2011) 18 (12): 2183-5. Prince H.E. and Matud J.L.
Use of dried blood blotted on filter paper to detect dengue IgM antibody and dengue NS1 antigen. Southeast Asian J Trop Med Public Health. (2013) 44 (2): 226-31. Chakravarti A., et al.

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