It is a well-established concept in medicine that antibodies produced in response to infection confer some degree
of later immunity. Patients who have, or suspect they have, been infected with the coronavirus are seeking antibody
testing so they may conclude they can be re-exposed without risk.
We recommend that if you are considering this option
that you schedule time to speak with a healthcare professional to determine if the testing is medically appropriate for you
or your family.
positive rates are unknown. While the FDA gave
12 companies clearance to sell antibody tests, these companies did not have to prove accuracy. In fact, recent questions
on accuracy led the FDA to announce that all companies selling tests must submit data proving accuracy or face removal
from the market.
· Immunity level and
duration is not understood. The presence of antibodies
should confer some immunity, but it is unknown for sure the degree or duration of immunity conferred against Covid-19. For
comparison, antibody protection to the related SARS virus are protective for only about 2 years.
Antibodies for one strain may not protect against another. Pre-publication studies suggest the virus may have mutated, so antibodies to one strain of COVID-19 may not protect
from other strains in the community.
Please contact the lab centers directly with any questions regarding their antibody
testing. Each lab has a patient resource page(urls below).