How Does an Antibody Test Work?
The COVID-19 IgM/IgG antibody rapid test is a fast and effective method for screening IgM and IgG antibodies against SARS-CoV-2. This test can also suggest information on the stage of infection.
Both Immunoglobulin M (IgM) and Immunoglobulin G (IgG) antibodies are produced during the primary immune response. As the body’s largest antibody, IgM is the first antibody to appear in response to an initial exposure to antigens. IgM provides the first line of defence during viral infections, followed by the generation of adaptive, high affinity Immunoglobulin G (IgG) responses for long-term immunity and immunological memory. IgG is usually detectable about 7 days after the IgM appears.
How is the COVID-19 IgM/IgG Rapid Test Kit different from Real-Time RT-PCR test?
The Real-Time RT-PCR (nucleic acid test) for SARS-CoV-2 is based on the detection of viral RNA, and it is the gold standard for COVID-19 diagnosis. The results for this nucleic acid test might take up to 3.5 hours, and the increased complexity of viral RNA extractions and PCR reaction setups require highly trained laboratory personnel. The COVID-19 IgM/IgG antibody rapid test is a qualitative test for COVID-19 IgM and IgG antibodies to. It is less complex and can provide results in less than 10 minutes. However, it should not be used as the sole basis to diagnose or exclude SARS-CoV-2 infection or to inform infection status
What are the limitations of Antibody tests?
1. COVID-19 Rapid Test is for in vitro diagnostic use only. The test should be performed using serum, plasma or whole blood samples only. Neither the quantitative value nor the rate of increase in COVID-19 antibody concentration can be determined by this qualitative test.
2. In the early onset of fever, anti-COVID-19 IgM concentrations may be below detectable levels.
3. The continued presence or absence of antibodies cannot be used to determine the success or failure of therapy.
4. Results from immunosuppressed patients should be interpreted with caution.
5. As with all diagnostic tests, all results must be interpreted together with other clinical information available to the physician.
6. If the test result is negative and clinical symptoms persist additional testing using other clinical methods is recommended. A negative result does not at any time preclude the possibility of COVID-19 infection.
Why Do We Need Antibody Testing?
You could have SARS-CoV-2 and not know it. Not everyone who gets it has symptoms. Experts hope antibody tests can give health officials a better idea of how common the virus is.
Once scientists know who has had the virus, they can find out how sick it makes most people. And they can study what happens if people who've had it come into contact with it again. Along with other scientific information, this can help researchers understand who might be immune to the virus.
The hope is that people with antibodies to COVID-19 can safely get back to work, and normal life, quicker.
These tests may also help with an experimental treatment for COVID-19 called convalescent plasma. Plasma is the liquid part of your blood.
Researchers are studying how antibodies in plasma donated by people who’ve recovered from COVID-19 might help those who are ill with the virus. One theory is that this plasma may help sick people get better faster. But more research is needed.
You can volunteer to donate plasma through
the National COVID-19 Convalescent Plasma Project. Or ask your local blood donation center for information.
What is the limit-of-detection for this assay?
There is no known LOD of this assay. The kit is qualitative and is based on antigen-antibody interactions, and every person has different antibody affinities.
What is the difference between the finger prick and serum/whole blood kits?
The test cartridges and diluent provided in the finger prick and serum/whole blood kits are identical. The only difference is that the finger prick kit comes with materials necessary for capillary blood collection (lancets, alcohol swabs, bandages).
What kind of volume can you supply for these tests?
Yes, we can scale our production to meet your needs for upto 1.5 million kits per day. Our typical turnaround time is 5 business days to ship for larger volumes. For volumes under 500,000 we can ship within 2 business days.
Are these tests covered by insurance?
The billing code for non-CDC laboratory tests for SARS-CoV-2/COVID-19 is 86328. The patient's insurance company should be contacted to determine coverage and pricing.
Are the kits CE approved?
Our kits are CE approved under the directive of 98/79/EC of IVD
Do I need a special analyzer to run the COVID-19 IgM/IgG Rapid Test?
No, the IgM/IgG rapid test does not require any other equipment. Aurora’s COVID-19 IgM/IgG Rapid Test Kit provides all the tools you need from sample collection to result reading.
What should I do if I my COVID-19 IgM/IgG Rapid Test is positive?
The COVID-19 Antibody Rapid Test can only be used as a reference, please contact your local physician or hospital.
Is each test packed separately and what components are included?
No, 25 test kits are packed in the box. Each Box includes: 25 COVID-19 IgM/IgG Rapid Test cassette, 25 disposable pipet, 25 lancets, 25 Alcohol swabs and 1 sample dilution buffer. Each box contains one copy of the Instruction manual.
