Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A substance that has been treated to destroy its toxic properties but retains the capacity to stimulate production of antitoxins, used in immunization.
from The Century Dictionary.
- noun A toxin which has lost its toxophoric group, but has retained the haptophoric group, so t. at it can still unite with the corresponding antitoxin. Such bodies result from the toxins by heat and age. They can be utilized in immunization, as though the toxophoric group were present.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Physiol. Chem.) An altered form of a toxin, possessing little or no toxic power.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
toxin that has had itstoxic properties removed, but retains its ability to generate animmune response
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin
Etymologies
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Examples
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Several vaccines are made by taking toxins and inactivating them with a chemical (the toxin, once inactivated, is called a toxoid).
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Purify a toxin produced by the bacteria (toxoid vaccine), e.g., diphtheria, tetanus, and pertussis
Vaccine Science 2010
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Once injected, the toxoid causes an immune response to the toxin, but, unlike the toxin, doesn't cause disease.
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Once injected, the toxoid elicits an immune response against the toxin, but, unlike the toxin, doesn't cause disease.
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Extra info: Diphtheria toxoid vaccine should be taken every 10 years.
Is it Worth a Shot? 2009
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The new vaccine drug was composed of tetanus toxoid and a lower concentration of diphtheria toxoid, as opposed to diphtheria found in the TD.
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Secondly, almost as an aside to his study of the staphylococcal toxin, Burnet made observations of the antibody response of rabbits to injections of the toxoid.
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Pregnant women were also given tetanus toxoid to prevent neonatal tetanus in their soon to be born babies.
PNG's National Immunisation Program Succeeds Despite Drought 1997
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She needs a tetanus toxoid vaccination immediately.
Chapter 20 1997
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If possible, give her a tetanus toxoid vaccination.
Chapter 20 1997
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