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Long covid has also prompted people to travel in search of experimental treatments, including apheresis, or “blood washing,” to eliminate clots that have been associated with prolonged symptoms.

People can donate platelets every seven days compared with every 56 days for whole blood donations and 112 days for apheresis red cells, aka Super Reds.

The treatment uses a process called apheresis to extract T cells from the patient and then genetically modifies the cells to add a receptor, the chimeric antigen, which binds with the cancer cells.

However, there is, as yet, no published and peer reviewed evidence showing that apheresis and anticoagulation therapy reduce microclots.

He was then plumbed into an apheresis machine to collect the stem cells from his blood.