Vincere Cancer Center 7469 E Monte Cristo Ave, Scottsdale, AZ 85260
World Class Contemporary Cancer Center
Integrated Cancer Care
Covid - 19 Testing
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Covid antigen and antibody testing
Vincere offers Covid - 19 Antigen and Antibody Testing. Antigen testing is identifying the virus particles themselves, while antibody testing is identifying the IgM and IgG antibodies produced by our immune systems to the virus particles. Both tests are beneficial as described below.
Covid - 19 Antigen Testing
Vincere is pleased to offer the Sofia SARS Antigen Test by Quidel. The Antigen test works by a Fluorescent Immunoassay for qualitative detection of the nucleocapsid protein from SARS-CoV-2 (COVID-19). What this means is the test identifies the Virus itself. The sample is taken from a nasal or nasal-pharyngeal swab. For the test to be positive, the virus needs to be present in the sample. If the patient has already recovered from the infection, then the test will likely be negative. There, however, may be a period of viral shedding after recovery that still may come up as positive on the test. Also, it may take 7 days after exposure for the body to have enough virus particles for the test to be positive.
COVID - 19 antibody testing
Vincere offers two different types of antibody tests: Ray Biotech SARS-CoV-2 IgM/IgG Rapid Test and Autobio SARS-CoV-2 IgM/IgG Rapid Test. When testing for IgM and IgG antibodies, we are testing for the immune system's response to the virus, rather than the virus itself. The benefit of this is to show current or previous infection response and to show possible immunity to future infections. Like the Antigen test, it may take 7 days after exposure for the test to be positive. There are exceptions to this but in general, the immune system starts making IgM antibodies 7 days after exposure to the virus and continues to produce these antibodies for a few weeks. This IgM antibody is the antibody of current infection. Overlapping this is the IgG antibody. It starts production at about 14 days after exposure and continues for months to years. Not everyone that has exposure to COVID-19 produces IgG antibodies however. It is not know at this time how long or the degree of immunity provided by the IgG antibodies, but it is estimated that it may last for approximately 3 years.
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