The Plasma Therapy
Plasma therapy (PT) is a passive immunization technique, which involves
the administration of plasma collected from individuals who have
recovered from an infection and developed antibodies against the
pathogen, in a patient who is sick and infected with the same type of
virus. PT can prevent a clinical infection, or prevent the worsening of
an existing infection, by helping the host organism to fight the virus.
Today, PT is mainly based on pooled immunoglobulin preparations that
contain high concentrations of antibodies. However, some evidence shows
that PT is more effective when administered prophylactically or used
early after the onset of symptoms (5-6).