plasma therapy

Plasma therapy is not new — it has been mostly a medical tool in the world of sports medicine.  Platelet-rich plasma (PRP) has been injected into muscles of sportspeople with sprains or tendonitis or the like, and has been credited with good results although no one yet knows how exactly it works.

 The same idea has resurfaced in the treatment of COVID-19.  The plasma is being taken from people who have had the disease and recovered, and injected into the blood of current sufferers in the hope that the antibodies in the plasma will assist them to fight the disease. So virus plasma therapy is going ahead with the support of WHO on the grounds that convalescent plasma, also called convalescent serum, has been effective against other infectious diseases like rabies and diphtheria. However, it needs to be carefully timed.  Plasma therapy in this case is a form of passive vaccine.