Alternatives for a Rapid Antigen Test

 

Rapid Antigen Test

When it comes to testing for the coronavirus disease, one of the preferred methods these days is the rapid antigen test. Antigen test detects the presence of SARS-CoV-2 virus proteins in the sample, allowing early detection of the infection. An antigen in this case is a protein that causes the immune system to produce antibodies and trigger an immune response. In the case of the coronavirus disease, spike proteins are found on the surface of SARS-CoV-2 virus. Therefore, antigen tests detect these proteins or genetic material of the SARS-CoV-2 virus.

You are probably wondering if there are any alternatives to a rapid antigen test for travel. Yes, there are. One of the alternatives you can use is a molecular or polymerase chain reaction (PCR) test. Reverse transcription polymerase chain reaction is considered to be the gold standard of diagnostic testing for COVID-19. A molecular test is usually performed using a technique called PCR which works by rapidly making millions to billions of copies of viral-related deoxyribonucleic acid (DNA).

In case there are even the smallest amounts of this genetic material in the sample, it will be detected. Thus, PCR tests are very sensitive, and also very specific. A positive test from a PCR test is almost never wrong in determining that SARS-CoV-2 is present.  Tests can be done on samples that are taken by nasal or throat swabs and even by saliva.

Another alternative for a rapid antigen test is an antibody test. This one looks for the body’s response to SARS-CoV-2 virus that causes COVID-19. However, the antibody test should not be used to diagnose the virus. It is a blood test that is good at determining if you had the disease but not good for determining if you have the disease.

For more information on alternatives for a rapid antigen test, visit our website at https://www.harleymedic.co.uk/

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