A COVID-19 antibody test, also popularly known as a serology test, is a blood test that can identify if a person has antibodies to SARS-CoV-2, it’s mainly the virus that roots COVID-19. COVID-19 antibody tests can help recognize people that may be infested with the SARS-CoV-2 virus or have recuperated from the COVID-19 infection. Currently, there are two different types of diagnostic tests are conducted for COVID-19:
• Molecular (RT-PCR) tests, which discover the virus’ genetic material
• Antigen tests that identify specific proteins on the surface of the virus
Molecular and antigen tests can detect if you have a vigorous coronavirus infection. If you test positive on both types of test, you should follow the CDC’s guidelines to defend yourself and others. Molecular and antigen tests are executed using samples taken mostly from the nose and throat expending a long swab, or other respiratory specimens.
What are Antibodies?
Antibodies are basically proteins made by the immune system to combat infections like viruses and may help to charge off future occurrences by those similar infections. Antibodies can take days or weeks to advance in the body due to the following exposure to a SARS-CoV-2 (COVID-19) infection and it is unidentified how long they stay in the blood.
An antibody test does not identify the presence of the SARS-CoV-2 virus to diagnose COVID-19. These tests can reoccur a negative test result even in infected patients (for example, if antibodies have not yet settled in response to the virus) or may spawn due to false positive results (for example, if antibodies to another coronavirus type are detected), so they should not be used to gauge if you are currently infected or transmissible (ability to infect other people).
Understanding Antibodies Test Result.
If you have a positive test result on a SARS-CoV-2 antibody test, then there is a possibility that you have recently or previously had COVID-19. There is also a chance that the positive result may be wrong, known as a false positive. There are reasons due to which false positive tests may occur:
• Because antibody tests may identify corona viruses other than SARS-CoV-2, such as those that cause the common cold.
• When testing is done in a population deprived of many cases of COVID-19 infections. These types of tests work fine within populations with higher rates of infection.
What do Sensitivity and Specificity have to do with Antibody tests?
Sensitivity is the capability of the test to recognise people with antibodies to SARS-CoV-2. This is recognised as the true positive rate. A highly sensitive test will ascertain most people who truly have antibodies with few people with antibodies being neglected by the test (false negatives).
Specificity is the ability of the test to appropriately identify people without antibodies to SARS-CoV-2. This is known as the true negative rate. A highly specific test will recognise people who truly do not have antibodies with few people without antibodies being acknowledged as having antibodies by the test (false positives).
Antibody and diagnostic tests are offered by prescription from a health care provider and may be accessible at local health care facilities and testing centers. Contact your health care provider or your local doctor or state health department for more related information.
The requirements for returning to work may be unwavering by your employer or your state and local governments. Ask your employer about your workplace’s criteria for returning to work for someone who has tested positive and any actions your employer will be taking to preclude or condense the spread of COVID-19 among employees and customers.