When should I get the antibody test?
It can take up to 3 weeks for your body to develop antibodies after SARS-CoV-2 infection or after receiving the COVID-19 vaccine or boosters, so you should wait to get an antibody test until 3 weeks after your symptoms started, after testing positive or receiving a vaccine or booster.
You should also wait until your symptoms have improved and you have not had a fever or felt feverish for 24 hours without taking fever-reducing medicine.
Current research shows that antibody testing 3 to 4 weeks after symptom onset or known exposure to COVID-19 may provide the most reliable results. Talk to your healthcare provider for more information.