his is an immune-response test that determines if your body has created antibodies from the vaccine if you have not had COVID-19.
Vaccines train our immune systems to create proteins that fight disease, known as ‘antibodies’, just as would happen when we are exposed to a disease but – crucially – vaccines work without making us sick. Vaccines to the COVID-19 virus have focused on a crucial and specific region of the vaccine known as the Spike protein, which is what the virus uses to connect with and enter the human body.