CoViDiag is an High-Resolution COVID-19 serological diagnostic device. Developed with the cutting-edge multiplex SirYus technology, it simultaneously detects and identifies 5 antibodies produced against the SARS-CoV-2 virus, offering very precise and reliable results, with exhaustive immune profiling. 

Perfectly automatable on several mainstream devices, CoViDiag is a very competitive technology, that enables to test and characterize several hundred samples a day. 

Its precision can confirm positive or negative samples with a very high accuracy. CE marked and validated by the CNR (Pasteur Institute), Covidiag is compliant with french HAS (Haute Autorité de Santé) and regulatory demands.

Key points of CoViDiag


  • High Performances : 99% specificity and 98,2% sensitivity*
  • High Definition : 5 antigens tested in one test (anti-N, anti S1, anti-S1-RBD, anti-S2, anti-S1-NTD)
  • Flexibility : IgG, IgA or IgM detection 
  • Simplicity : Same Protocol as an ELISA Test
  • Adaptability : Standard lab equipment : Quick visual interpretation **

*Diagnostic sensitivity on plasma samples collected over 8 days after symptoms onset and infection confirmed by rt-PCR.
**Automated interpretation is available on a specific reader.


An Original ELISA-Based Multiplex Method for the Simultaneous Detection of 5 SARS-CoV-2 IgG Antibodies Directed against Different Antigens. J Clin Med. 2020 Nov 21;9(11):3752.

Longitudinal Analysis and Comparison of Six Serological Assays up to Eight Months Post-COVID-19 Diagnosis. J Clin Med. 2021 Apr 21;10(9):1815.


CoViDiag Product Range

96-tests kit SirYus CoViDiag CE-IVD for IgG detection #2001
96-tests kit SirYus CoViDiag RUO for IgM detection #2004
96-tests kit SirYus CoViDiag RUO for IgA detection #2005


To obtain Covidiag kits and assistance, please contact us using the following form:

You can also contact us directly
by phone: +33 (0)3 28 55 51 29
or by email: This email address is being protected from spambots. You need JavaScript enabled to view it.