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Antitoxin | Define Antitoxin at Dictionary.com noun 1. a substance, formed in the body, that counteracts a specific toxin . 2. the antibody formed in immunization with a given toxin , used in treating certain ...
The Production of Toxins. Poisonous substances produced by microorganisms are called toxins; toxemia refers to the presence of toxins in the blood. The ability to produce toxins is called toxigenicity. Exotoxins are produced by bacteria (mostly gram-positive) and released into the surrounding medium. Exotoxins, not the bacteria, produce the disease symptoms. Antibodies produced against exotoxins are called antitoxins.