Antibody Identification and Differentiation
Identify and differentiate IgG and IgM antibodies to confirm past or current exposure to SARS-CoV-2 and provide qualitative information to complement molecular studies.
- Identify SARS-CoV-2 IgG – IgG is produced in later stages of the infection and can indicate recent or prior infection
- Identify SARS-CoV-2 IgM – IgM is an acute phase marker and is the first antibody produced by the immune system in response to an infection
- Differentiate – Monitor seroconversion and immunological status of patients by providing IgG and IgM specific results

Rapid Results
Rapid test technology enables health care systems to meet the increase in testing demands to aid in the diagnosis of COVID-19
- Quck Results – Results can be read in 15 minutes
- Simple procedure – A simple 3-step procedure requires addition of the patient sample, buffer, and then read results after 15 minutes
- Versatile sample type – Sample types includes venous whole blood (one drop), serum (5 µL), and plasma (5 µL)

The time kinetics of antibodies isotypes produced against SARS-CoV-2 compared with PCR
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References:
- Guo L, et al. Profiling Early Humoral Response to Diagnose Novel Coronavirus Disease (COVID-19). Clin Infect Dis. 2020 Mar 21. [Epub ahead of print]
- Policy for Diagnostic Tests for Coronavirus Disease-2019 during the Public Health Emergency. Immediately in Effect Guidance for Clinical Laboratories, Commercial Manufacturers, and Food and Drug Administration Staff [Internet]. U.S. Department of Health and Human Services. Food and Drug Administration. Center for Devices and Radiological Health. [Cited 2020 April 23]. Available from: https://www.fda.gov/media/135659/ download
- Zhao J, et al. Antibody responses to SARS-CoV-2 in patients of novel coronavirus disease 2019. Clin Infect Dis. 2020 Mar 28. [Epub ahead of print]
- Long Q-X, et al. Antibody responses to SARS-CoV-2 in COVID-19 patients: the perspective application of serological tests in clinical practice. Clin Infect Dis. 2020 Mar 28. [Epub ahead of print]
- IDSA COVID-19 Antibody Testing Primer. [Internet]. Infectious Disease Society of America. [Cited 2020 April 22]. Available from: https://www.idsociety.org/globalassets/idsa/public-health/covid-19/idsa-covid-19-antibody-testing-primer.pdf
- Padoan A, et al. IgA-Ab response to spike glycoprotein of SARS-CoV-2 in patients with COVID-19: A longitudinal study. Clin Chim Acta. 2020 Apr 25. [Epub ahead of print]
This information is intended for physicians and healthcare professionals only.
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