What is Convalescent Plasma?
Convalescent plasma is plasma carrying antibodies that are only present in people who have recovered from COVID 19.
These antibodies help attack the virus for the plasma recipient.
The FDA approved trial for plasma transfusions has been used mostly on those folks with the most severe cases of coronavirus and has proven to be a safe and effective way to treat COVID patients.
Who can donate?
- In order to qualify to donate, one must have tested positive and recovered from COVID 19 and be 14 days removed from your last day of symptoms
- The process takes about an hour and half, and is made easy by very well-prepared donor care specialists
- Donors can be eligible to donate every 4 days
- One bag of plasma is more than enough to use on one sick patient — 4 bags can help 5 different patients.
Who can donate?
- In order to qualify to donate, one must have tested positive and recovered from COVID 19 and be 14 days removed from your last day of symptoms
- The process takes about an hour and half, and is made easy by very well-prepared donor care specialists
- Donors can be eligible to donate every 4 days
- One bag of plasma is more than enough to use on one sick patient — 4 bags can help 5 different patients.
Save a Life
Find out if you're eligible to donate!

Schedule an Appointment
If you have recovered from COVID, you can donate plasma.
If you have not yet met the 14 day post-symptom requirement, you can still call the South Texas Blood & Tissue Center and schedule a time for after you have met the requirement.

- Monday – Friday | 8:30am – 5:00pm CT
- Main line | (210) 731-5555
- Toll free | (800) 292-5534
- SouthTexasBlood.org
Spread the Word!
Use this toolkit to spread awareness about how your plasma donation can save lives.