DyonCovid19-S® (neutro)

Innovation and reliability in immunoassay after vaccination

Innovative immunochromatography design ONE STEP RAPID TEST by Dyonmed!

DyonCovid19-S® (neutro) Performance table

DyonCovid19-S® (neutro)

Immunity Assessment  |  Direct control  |  Suitable for screening large groups of population

DyonCovid19-S® (neutro), is a rapid chromatographic immunobiological test for the semi-quantitative detection of IgM & IgG antibodies against severe acute coronary syndrome due to coronavirus 2 (SARS-CoV-2) in human blood plasma / serum samples. which helps diagnose coronavirus (COVID-19) infection caused by SARS-CoV-2 (“passive” immunization).

DyonCovid19-S®, detects the “Neutralizing Antibodies (nAbs)” of the specific protein / “pin” “S” of the surface of SARS COV-2 (spike (S) protein), helping significantly in the diagnosis of “active” Immunization (after vaccination).


It is mainly used to identify individuals with an acquired immune response to SARS-CoV-2 and to evaluate the effectiveness of clinical vaccine trials and mass vaccination.


DyonCovid19-S® (neutro) was compared to the CPE technique using clinical specimens from 136 healthy volunteers and 42 diagnosed patients. The CPE (microdose cytopathic effect) was selected as the comparison method and the comparison results are shown in the table below. Homologous serum, plasma and whole blood samples were also collected from the 50 individuals mentioned above and the results were consistent.
The results are as follows:

The results show:

  • sensitivity 48%.
    • PPA: 90.48%(95%CI:94%-96.24%)
  • specialty 26% and
    • NPA: 99.26%(95%CI:95%-99.87%)
  • Η Overall Accuracy is at 19%
    • OPA: 97.19%(95%CI:59%-98.79%)
Find here the use instructions for DyonCovid19-S® (neutro)
DyonCovid19-S® (neutro) instructions
Find here the use instructions for DyonCovid19-S® (neutro)
DyonCovid19-S® (neutro) instructions

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