Specific antibodies against tetanus toxin are determined to evaluate tetanus immunity and measure post-vaccination immune response in individuals suspected of immune system disorders.
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Clostridium tetani produces a potent biological toxin, tetanospasmin, which is the causative agent of tetanus. Tetanus spp. are large, Gram-positive, rod-shaped, anaerobic bacteria, about 1 µm thick and 3-8 µm long. The appearance of Clostridia in Gram staining is similar to tennis rackets or drum keys. Clostridium tetani can be found as spores in the soil or as a flora in the gastrointestinal tract of animals.
Clostridium tetani usually enters the host through a skin wound, reproducing and forming spores. In anaerobic conditions, the pathogenic microorganisms produce two types of toxins, tetanolysin and tetanospasm, which reach the anterior horns of the spinal cord or brainstem, with inverse transport along the nerve axes. Tetanolysin does not serve any known function in Clostridium tetani, and it is not known precisely why the bacteria produce it. Tetanus spasmin is a neurotoxin that causes tetanus's clinical manifestation by blocking inhibitory nerve impulses, interfering with the release of neurotransmitters, including glycine and gamma-aminobutyric acid.
The clinical picture of tetanus is characterized by increased muscle tone and convulsions caused by visual or acoustic stimuli. Cramps often start in the facial muscular system and then spread to the neck and back muscles. The patient remains clear. Finally, paralysis of the diaphragm and tongue causes the patient to die. If the patient is immunized, tetanus is confined to the immediate environment of the injured tissues, and the mortality rate is shallow.
Tetanus is rarely seen in developed countries due to widespread vaccination practice. Its incidence is much higher in developing or underdeveloped societies. Worldwide, about 300,000 people are infected with tetanus every year, with a mortality rate of about 50%.
Important Note
Laboratory test results are the most critical parameter for diagnosing and monitoring all pathological conditions. 70% and 80% of diagnostic decisions are based on laboratory tests. Correct interpretation of laboratory results allows a doctor to distinguish "healthy" from "diseased."
Laboratory test results should not be interpreted from the numerical result of a single analysis. Test results should be analyzed based on each case and family history, clinical findings, and other laboratory tests and information. Your physician should explain the importance of your test results.
At Diagnostiki Athinon, we answer any questions you may have about the test you perform in our laboratory and contact your doctor to ensure you receive the best possible medical care.
