Questions and Answers about Coronavirus

COVID-19 Convalescent


COVID-19 patients in your community need plasma from recovered donors like you.


As someone who has recovered from COVID-19, your blood could make a difference for someone currently sick with the disease and help scientists better understand how the virus works in our bodies.

With the continued rise of COVID-19 cases, patients in our community have an ongoing need for convalescent plasma transfusion.

One unit of CCP can save up to four lives. We are collecting CCP at all Bloodworks donor centers and need recovered donors like you to make a difference.


Have a confirmed COVID-19 diagnosis or positive antibody test

Have been recovered for 28 or more days

Are at least 18 and meet blood donor eligibility requirements

Click to see if you qualify

Research blood donors must meet the following requirements:

  1. Have a confirmed COVID-19 diagnosis
  2. Either (a) 28 days since positive screening, (b) 28 days since last symptoms, or (C) a negative test
  3. At least 18 years of age at time of providing informed consent
  4. Meet FDA blood donor eligibility criteria.
  5. Reliably capable of receiving US mail, electronic mail and telephone calls
  6. Anticipated to be available for scheduled donation(s)

All individuals must pass a brief medical examination, a medical history screening and testing for transmissible viruses, before their donated plasma can be used.

A Bloodworks physician may determine that you are not qualified to donate plasma based on their professional judgement. If a physician determines that you are not qualified to donate plasma, you may be offered other opportunities to support medical research.

(206) 689-6689

When you were fighting COVID-19, whether you had symptoms or not, your immune system created proteins called antibodies to attack the virus. These antibodies are likely still in your bloodstream and, when transfused, may be a patient’s last hope to recover.

Your COVID-19
Convalescent Plasma


The average plasma donation lasts about 45 minutes. This plasmapheresis process uses blood that is drawn and returned to the same arm. Eat a full meal and drink plenty of fluids before your appointment to ensure a successful donation.

Frequently Asked Questions (FAQ)

How will my donation be used?

Your donation will be used for some or all of the following:

  • Plasma for direct transfusion to patients ill with COVID-19.
  • For research to better understand the virus and its effects on humans.

How do I qualify?

You must meet the following criteria to qualify for CCP donation:

Bloodworks will begin testing donations to the community blood supply for the presence of antibodies December 9 through 31; donors may be invited to participate in the CCP Program if COVID-19 antibodies are detected.

How long does it take?

This is different from donor to donor, but the average plasmapheresis procedure lasts about 45 minutes. This donor process requires a venipuncture in order to draw the blood needed for the procedure. This process uses blood that is drawn and returned to the same arm, and the draw itself depends on the volume of blood being drawn as well as the flow of the blood. Bloodworks will offer you water or a light snack if you are feeling the effects of the blood draw (dizziness, light headed, etc.) and you will be asked to remain in the blood draw chair/bed until symptoms subside. This could increase the length of your visit if it is necessary

Does donating plasma reduce the amount of antibodies in the donor?

Studies do not suggest that plasma donation will reduce an individual’s own immunity or future antibody levels. The immune system should replace these antibodies.

If antibodies are detected, does that mean I am immune and cannot infect others?

The presence of antibodies tells us if the body mounted a response to the virus. It is not yet known if that will protect an individual from contracting the same or another strain of the virus that causes COVID-19 or keep them from potentially infecting others. Because of this, recovered donors should take the same precautions as the rest of the population: wear a mask, wash your hands frequently, and practice social distancing.

Can my antibodies go down over time?

It is possible that your antibody levels may decrease over time; given how much is still unknown about the novel coronavirus and how COVID-19 impacts the body, researchers do not yet know how long the antibodies stay active in your body after infection. Your donations may help us determine this.

If no antibodies are detected, even with a diagnosis, does that mean I never had COVID-19?

Not necessarily; while false positives do occasionally happen with any test result, we do not yet know enough about this new virus or the antibody testing to make that claim.

What happens to the plasma donation if no antibodies are found?

Every donation has life-saving potential. If antibodies are not adequate to be used for transfusion to COVID-19 patients, this plasma may still be used to support COVID-19 research to better understand the virus and develop testing or treatments.

As long as standard safety requirements are met, the plasma may also be used as a regular plasma transfusion.

What if I have a family member or friend that would like to donate, but does not have a positive COVID-19 test?

At this time we are only accepting donors who have had a positive COVID-19 test or positive antibody test. Bloodworks will begin testing donations for the community blood supply for the presence of antibodies December 9 to 31, 2020; donors may be invited to participate in the CCP Program if COVID-19 antibodies are detected.

Can I ask that my plasma go to treat a specific person (family or friend) sick with COVID-19?

No, but by donating you increase the availability of plasma transfusion for everyone in need.

How can donors find out if they qualify for blood donation based on FDA guidelines?

Visit Bloodworks’ eligibility criteria, found at

For any specific questions about donor eligibility not answered on our website, contact our Clinical Program at or call 1-800-366-2831, ext 2543.

Will donors be paid for participation?

Like all blood donations in the US, donors cannot be paid for their plasma donations.

What happens if I have a long-term or short-term deferral?

During screening and at each plasma donation, blood samples are taken to ensure the safety of the donor and the recipient.

If the donor has a short-term deferral, such as slightly low hemoglobin, the donor may come back on another date to test again.

Donors with long-term or permanent deferrals that do not represent an infectious disease risk or risk to the health of a donor may be eligible for research-only donations.

For more information

please contact Bloodworks Northwest
(206) 689-6689

Support Bloodworks’ COVID-19 Program