Documentation of a negative COVID-19 test result is one of the most often sought papers, especially while traveling. In order to be tested, the medical industry has started to expand and create new ways of measurement. Of course, the patient’s comfort is taken into account; the specimen, the location of testing, and the procedure all vary. On the other hand, these techniques are quite similar to those used in hospitals and labs to diagnose patients. Furthermore, a fast antigen test for travel is one of the most convenient methods to get checked before flying.

Serology tests are used to identify whether a person has been exposed to a disease in the past. The tests seek antibodies generated as part of the immune response that may bind to the virus. COVID-19 serology tests check for antibodies that bind to certain SARS-CoV-2 proteins or the antigens on the virus, which are present if a person has been infected and recovered from the virus. Even after the infection has gone, these tests may be used to identify the frequency of disease in a community. Serology tests rely on blood samples obtained by a blood draw from a person’s arm or a finger stick. These tests are not utilized to identify active COVID-19 because they detect indications of the body’s fight against the virus rather than itself. Presently, no test can determine whether a person is resistant to reinfection by SARS-CoV-2 since it is uncertain how long antibodies will be protective because antibody levels normally drop over time.

Many countries require a Fit-to-Fly COVID test or the completion of Fit-to-Travel health documents to prevent travellers from becoming ill when operations and economies eventually restart. In addition, the most often encountered test needed to be conducted is the rapid antigen COVID test when it comes to travel. Travelers may use these documents to show that they received a negative COVID-19 test assessed by a physician before boarding a flight.

Below is an infographic from Harley Medic International entitled “Serology Testing for COVID-19: What to Know.”

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