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Featured
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Quantitative COVID-19 (SARS-CoV-2) IgG ELISA
CE certified for diagnostic use.
The COVID-19 (SARS-CoV-2) quantitative IgG ELISA is a new immunoassay for the quantitative and qualitative detection of specific IgG-class antibodies to the spike protein of SARS-CoV -2.
- Monitor antibody levels during and after a COVID-19 infection.
- For determination of antibody levels before and after a COVID-19 vaccination
- Aid in the diagnosis of patients suspected of having COVID-19 disease or asymptomatic presentation of SARS-CoV-2

- CE certified
- Quantitative determination of IgG-class antibodies to the SARS-CoV-2 spike (S) protein
- Trimeric SARS-CoV-2 Spike antigen
- Calibrators correlate to WHO International Standard NIBSC code 20/136
- Diagnostic specificity and sensitivity of 99.49% and 97% respectively (≥15 days post symptom onset)
- Validated for human serum and plasma
Download instructions for use

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COVID-19 (SARS-CoV-2) IgG ELISA
CE certified for diagnostic use. The COVID-19 (SARS-CoV-2) IgG ELISA is intended for the qualitative determination of IgG class antibodies against SARS-CoV-2 in human serum or plasma to support the diagnosis of COVID-19 disease and constitutes a supplement to direct pathogen detection. In addition, serology can be used to collect epidemiological information on the prevalence of SARS-CoV-2.
Significance of N-Protein in COVID-19 (SARS-CoV-2) ELISAs
A significant factor for the diagnostic specificity and sensitivity of COVID-19 ELISAs is which antigen is used for coating.
The DEMEDITEC COVID-19 (SARS-CoV-2) ELISAs use the SARS-CoV-2 nucleocapsid protein (N protein) as antigen for the detection of antibodies to SARS-CoV-2.
N protein is a highly conserved antigen which has the advantage that it is abundant during the course of corona infection and stronger immune response in comparison to other antigen can be observed. Studies using ELISAs with different antigens, structural protein (S1), Receptor Binding Domain (RBD) and N protein reveal that ELISAs coated with N protein antigen
are more sensitive than S1 coated ELISAs in detecting antibodies in patients with mild course of disease and showed a stronger correlation with Plaque Reduction Neutralization Test (PRNT) titer. Although the N proteins show a high level of preservation with other corona viruses, cross-reactivity with other relevant corona viruses does not seem likely, as studies indicate no significant cross-reactivity with other viruses.
Kit format
96 well ELISA microplate - separate strips
Diagnostic Specificity (normal blood donors) 99.24% (95% CI 95.82 - 99.98)
Diagnostic Sensitivity >12 days post symptoms onset 100%
For full information please contact JR Biomedical - Tel 01745 535169
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COVID-19 (SARS-CoV-2) IgM ELISA
CE certified for diagnostic use. The COVID-19 (SARS-CoV-2) IgM ELISA is intended for the qualitative determination of IgM class antibodies against SARS-CoV-2 in human serum or plasma to support the diagnosis of COVID-19 disease and constitutes a supplement to direct pathogen detection. In addition, serology can be used to collect epidemiological information on the prevalence of SARS-CoV-2.
Significance of N-Protein in COVID-19 (SARS-CoV-2) ELISAs
A significant factor for the diagnostic specificity and sensitivity of COVID-19 ELISAs is which antigen is used for coating.
The DEMEDITEC COVID-19 (SARS-CoV-2) ELISAs use the SARS-CoV-2 nucleocapsid protein (N protein) as antigen for the detection of antibodies to SARS-CoV-2.
N protein is a highly conserved antigen which has the advantage that it is abundant during the course of corona infection and stronger immune response in comparison to other antigen can be observed. Studies using ELISAs with different antigens, structural protein (S1), Receptor Binding Domain (RBD) and N protein reveal that ELISAs coated with N protein antigen are more sensitive than S1 coated ELISAs in detecting antibodies in patients with mild course of disease and showed a stronger correlation with Plaque Reduction Neutralization Test (PRNT) titer. Although the N proteins show a high level of preservation with other corona viruses, cross-reactivity with other relevant corona viruses does not seem likely, as studies indicate no significant cross-reactivity with other viruses.
Kit format
96 well ELISA microplate - separate strips
Diagnostic Specificity (normal blood donors) 100% (95% CI 97.26 - 100.0)
Diagnostic Sensitivity >12 days post symptoms onset 57.14%
For full information please contact JR Biomedical - Tel 01745 535169
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COVID-19 (SARS-CoV-2) IgA ELISA
CE certified for diagnostic use. The COVID-19 (SARS-CoV-2) IgA ELISA is intended for the qualitative determination of IgA class antibodies against SARS-CoV-2 in human serum or plasma to support the diagnosis of COVID-19 disease and constitutes a supplement to direct pathogen detection. In addition, serology can be used to collect epidemiological information on the prevalence of SARS-CoV-2.
Significance of N-Protein in COVID-19 (SARS-CoV-2) ELISAs
A significant factor for the diagnostic specificity and sensitivity of COVID-19 ELISAs is which antigen is used for coating.
The DEMEDITEC COVID-19 (SARS-CoV-2) ELISAs use the SARS-CoV-2 nucleocapsid protein (N protein) as antigen for the detection of antibodies to SARS-CoV-2.
N protein is a highly conserved antigen which has the advantage that it is abundant during the course of corona infection and stronger immune response in comparison to other antigen can be observed. Studies using ELISAs with different antigens, structural protein (S1), Receptor Binding Domain (RBD) and N protein reveal that ELISAs coated with N protein antigen are more sensitive than S1 coated ELISAs in detecting antibodies in patients with mild course of disease and showed a stronger correlation with Plaque Reduction Neutralization Test (PRNT) titer.
Although the N proteins show a high level of preservation with other corona viruses, cross-reactivity with other relevant corona viruses does not seem likely, as studies indicate no significant cross-reactivity with other viruses.
Kit format
96 well ELISA microplate - separate strips
Diagnostic Specificity (normal blood donors) 98.26% (95% CI 93.86 - 99.79)
Diagnostic Sensitivity >12 days post symptoms onset 100%
For full information please contact JR Biomedical - Tel 01745 535169
Human ELISA Kits | UK distributor | Fast delivery
Rapid Human ELISA kits | Point of care tests | Immunology research
JR Biomedical Ltd is a UK developer, manufacturer and distributor of medical diagnostics including human ELISA kits and immunoassay reagents for research and clinical diagnostic use. Our customers include universities, research institutes, pharmaceutical companies and the NHS Supply Chain.
- - Full technical support and same day order processing
- - Manufactured by ISO13485 certified European laboratories
- - Rapid Human ELISA kits for diagnostic use, precoated plates and ready to use reagents
- - CE certified for clinical as well as research use
- - ISO 13485:2016 certified distributor
- - UK distributor for Demeditec Diagnostics ELISA kits and Milenia Biotec point of care diagnostics
Ordering information
You can order online, by Email of a purchase order or telephone 01745 535 207 - create an account today
If you can't find the rapid ELISA kit that you are looking for from our online catalogue please use the search box above or call us as new tests are regularly added to our portfolio.
