Antiserum

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In immunology, antiserum is a blood serum containing antibodies (either monoclonal or polyclonal) that is used to spread passive immunity to many diseases via blood donation (plasmapheresis). For example, convalescent serum, or passive antibody transfusion from a previous human survivor, was the only known effective treatment for Ebola infection with a high success rate of 7 out of 8 patients surviving.^[1]

Antisera are widely used in diagnostic virology laboratories. The most common use of antiserum in humans is as antitoxin or antivenom to treat envenomation.^{[citation needed]}

Serum therapy, also known as serotherapy, describes the treatment of infectious diseases using the serum of animals that have been immunized against the specific organism or components of that organism that is causing the infection.^[2][3]