The Red Cross tests every blood donation for a variety of infections. All blood, platelet and plasma donations on or after June 15, 2020 will also be tested for COVID-19 antibodies.
Donations will be tested for COVID-19 antibodies using samples obtained at the time of donation and sent to a laboratory where samples will undergo routine screening and infectious disease testing.
Donors who have been tested for COVID-19 antibodies will see one of the following results:
POSITIVE: Result indicates that an individual may have had previous exposure to the virus that causes COVID-19 and their body has developed specific antibodies to the virus, regardless of whether you developed symptoms. A positive antibody test does not confirm prior infection or immunity.
NEGATIVE: Result most likely means that the individual has not been exposed to COVID-19 and therefore has not developed antibodies to the virus.
NOT AVAILABLE: Result means that your test result is not yet available or your donation was not tested.
If your antibody test result is positive, you may be eligible to take part in our convalescent plasma donation program. Whatever your antibody testing result, your blood donation is critical to helping save lives. You may also be contacted about participating in research studying those individuals with positive results.