The Co-Immunity Project involves testing a representative sample of the Louisville Metro Area/Jefferson County residents to discover the true prevalence of COVID-19 infection, as well as to learn how many people may have had the virus previously.  Both the nasal swab test to detect an active infection and the finger-stick blood test to detect antibodies to the virus, indicating a past infection, is administered to particpants.  This is done in conjuction with the University of Louisville's and the Center for Predictive Medicine.  For more information please see this link: https://louisville.edu/envirome/thecoimmunityproject