But such speculation needs to be tested  we cant just rely on an educated guess. Plasma is the clear, yellowish liquid part of the blood which carries red and white blood cells and platelets around the body. Get CNN Health's weekly newsletter Sign up here to get The Results Are In with Dr. Sanjay Gupta every Tuesday from the CNN Health team. It might be worth considering, rather than giving just convalescent plasma, taking the antibodies out of the plasma and using those, Morgan said. Such purified antibodies are already used to treat patients with antibody deficiencies.
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