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Maryland Department of Health


Plasma Donation

If you have fully recovered from COVID-19, you may be able to help patients currently fighting the infection by donating your plasma. Because you fought the infection, your plasma now contains COVID-19 antibodies. These antibodies provided one way for your immune system to fight the virus when you were sick, so your plasma may be able to be used to help others fight off the disease.

What is Convalescent Plasma?

Convalescent plasma is the liquid part of blood that is collected from patients who have recovered from COVID-19. Those who have completely recovered from COVID-19 may have immune-boosting antibodies, which are proteins that can help fight infections. When a person’s plasma, or the liquid part of the blood, contains these immune-boosting antibodies, it is called “convalescent plasma.” Convalescent plasma could be used to treat critically ill COVID-19 patients.

The Food and Drug Administration (FDA) is allowing the transfusion of convalescent plasma as an investigational treatment. It’s currently the only antibody treatment available for COVID-19 patients.

Donation eligibility 

You may qualify to help if you meet specific convalescent plasma and regular blood donation eligibility requirements, including if you:

  • Have a prior, verified diagnosis of COVID-19, but are now symptom free and fully recovered from COVID-19.
  • Are at least 17 years old and weigh at least 110 lbs. Additional weight requirements apply for donors age 18 or younger.
  • Are in good health. You generally feel well, even if you’re being treated for a chronic condition.

How Can I Donate Convalescent Plasma?

Several resources are available regarding options to donate convalescent plasma in your area. To learn more and find the site nearest you: