Exotoxin

A poison released by certain types of bacteria that enters the bloodstream and causes widespread effects around the body. Exotoxins are among the most poisonous substances known. Infections by tetanus, diphtheria, and some other bacteria that release lifethreatening exotoxins can be prevented by immunization. Treatment of such infections usually includes administration of antibiotic drugs and an antitoxin. (See also endotoxin; enterotoxin.)

 

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