Antivenin

The most common antivenin is the Wyeth (Crotalidae) Polyvalent antivenin. It is obtained from animal blood and is serum globulins (antibodies from blood) in a concentrated form. Usually the animal used is horses that are immunized by injecting a small amount of the venom into their bodies.

Their immune system will produce antibodies to combat the venom (natural immune response). The antibodies are then harvested from the horse in a concentrated form so that it can act quickly to neutralize venom in a person bitten by a snake.

Antivenin is divided into two types: monovalent and divalent antivenin. The monovalent antivenin is only useful against one specific species whereas the divalent types covers venom from several types of snakes.

In Asia where bites from Cobras are much more common than in the USA, it is a problem that the antivenin is not available most places and a lot of cobra victims do not get the antivenin in time to survive.


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