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covid 19 test kit coronavirus


 

Covid 19 test kit coronavirus

covid 19 test kit coronavirus

covid 19 test kit coronavirus

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What is the principle of the COVID-19 test kit?

The COVID-19 IgG / IgM Rapid Test Kit is a qualitative diaphragm-based immunoassay for the detection of antibodies to novel coronaviruses (IgG / IgM) in human whole blood / serum / plasma. The test box includes

1) Burgundy-colored coupling pads containing novel coronavirus recombinant envelope antigen (novel coronavirus coupling) coupled to colloidal gold.

2) Nitrocellulose membrane strip containing two test lines (IgG and IgM lines) and a control line (C line). The IgG spectrum is coated with Mouse anti-Human IgG antibody. When a sufficient amount of the test sample is dispensed into the sample wells of the cassette, the sample migrates over the cassette by capillary action. If IgM is present in the specimen against the novel coronavirus, it will bind to the novel coronavirus binding. The immune complexes were then captured with reagents pre-coated on IgM spectral bands to form burgundy-colored IgM strains, indicating positive IgM test results for the novel coronavirus. If IgG anti-Novel coronavirus is present in the specimen, it will bind to the novel coronavirus binding. The immune complex was then captured by reagents encapsulated in the IgG line, forming a purple-red IgG line, indicating the results of the novel coronavirus IgG test. No T-cell lines (IgG and IgM) were suggestively negative. For program control purposes, a colored line will always appear in the control line area indicating that an appropriate volume of sample has been added and that membrane core suction has occurred.

covid 19 test kit coronavirus

covid 19 test kit coronavirus

What tests are available?

There are two main methods to detect SARS-CoV2 (the coronavirus that causes COVID-19 disease) infection. The first is a very sensitive test that uses a technique called RT-PCR to find the RNA of a virus so that only one virus particle may be detected in a swab taken from the inside of the mouth or nose.

The second type of test measures the response of antibodies to the virus in the serum. Our bodies make many different antibodies against many viral components. Some antibodies are very useful and can kill the virus or stop the infection, while others are less useful and can bind to common parts of the virus, but do not help us defend against them.

The test itself is very simple: apply a viral “paste” or ideally purified viral component to the test tube, then add a small, extremely diluted blood sample from the patient and bind any antibodies to the test tube. Finally, tests are performed to see if any antibodies are present.

When the outbreak began, most countries relied on RT-PCR testing because these tests were developed the fastest. More antibody tests can now be performed and as gaps appear, more cases will be reported. The large differences between the groups tested still make it difficult to compare overall figures between countries. RT-PCR testing was quickly developed in the UK, which is still the primary method, using a network of laboratories that would perform the same standardized tests. This allows for consistent data, but expands capacity due to the size of the outbreak and the speed at which it develops.

covid 19 test kit coronavirus

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