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Serologic Testing: How Does Antibody Testing Work?

A serologic test, also known as an antibody test, looks for antibodies to viruses in the bloodstream. Antibodies are proteins in your blood that help fight off infections, and their presence can help determine whether you have been exposed to and infected with, or are immune to a disease*, including COVID-19. A blood sample is taken to detect and measure the level of SARS-CoV-2 antibodies as a result of exposure to the virus. Penn Medicine Pathology and Laboratory Medicine is conducting research and clinical studies to further understand the science behind COVID-19. Researchers are studying how patients who have recovered from the virus can help those who are battling the disease to determine whether a positive antibody test means a patient’s antibodies can block the SARS-CoV-2 virus from entering other cells. A positive antibody test does not mean you are immune to COVID-19, but rather that you have been exposed to the virus. *Disclaimer: We do not yet know if antibodies from SARS-CoV-2 will protect people from getting infected again and research is still being done on that subject. Learn more: https://www.pennmedicine.org/for-pati... #PennMedicine #COVID-19 #Coronavirus