How many times can a tetanus shot be administered in a year?

Written by Zhang Da Wei

General Surgery

Updated on November 28, 2024

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The tetanus toxin vaccine is used for emergency vaccination. The main ingredient of this vaccine is the tetanus antitoxin. It is best to be vaccinated within 24 hours, and the sooner the vaccination is administered, the stronger the potential for protection. However, the duration of protection provided by the vaccine is not very long, and the effect of the tetanus antitoxin medication generally lasts about a week. Therefore, vaccination within 24 hours can effectively prevent problems that may occur within that week.

Generally, there is no specific number for the annual frequency, but it is usually recommended not to exceed three times per year. Of course, this depends on the degree of injury. If there is a risk of infection, then the vaccine should be administered since its preventive effect is currently considered the best and can achieve significant efficacy.

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Written by Xu Jun Hui

General Surgery

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When does tetanus occur?

Tetanus is an infection caused by the invasion of the body by Clostridium tetani. Clostridium tetani is an anaerobic bacterium and an opportunistic pathogen, which is likely to cause tetanus in conditions such as anaerobic environments, deep wounds, or heavily contaminated wounds. Therefore, in cases where wounds are relatively small yet deep, and are considered to be in an anaerobic environment, or are contaminated with rust or soil, or in situations such as open fractures, blast injuries, gunshot wounds, and animal bites, tetanus injection treatment is necessary. It is generally recommended to administer the injection within 24 hours, and a skin test should be conducted before the injection, with alcohol consumption prohibited.

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Written by Xu Jun Hui

General Surgery

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How to get a tetanus shot if you are not allergic

Tetanus allergy refers to the body not being allergic to tetanus antitoxin, which can be directly diluted with saline and then administered intramuscularly into the buttocks or upper arm. Alternatively, tetanus immunoglobulin, which does not require a skin test, can also be administered intramuscularly. The purpose of the tetanus shot is to prevent infection by the tetanus bacillus, an anaerobic bacterium. In deep wounds in an anaerobic environment, or in heavily contaminated wounds with dirt or rust, there is a high risk of colonization by tetanus bacilli in the human body, requiring tetanus vaccination treatment.

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Written by Xu Jun Hui

General Surgery

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In what situations should tetanus shots not be administered?

Tetanus is caused by Clostridium tetani, which settles in the human body through mucous membranes and wounds, producing spasm-inducing neurotoxins that affect the body's muscle groups, particularly the masseter and respiratory muscles, leading to the ceasing of respiratory circulation and endangering life. Therefore, for patients with deep wounds, heavily contaminated wounds, and extensive open fractures, it is essential to administer tetanus antitoxin treatment. If the wound is superficial, clean, and dry, the patient may consider forgoing tetanus antitoxin treatment under the condition of proper wound debridement and dressing changes. However, for patients with large wound areas, deep and severely contaminated wounds, and those whose wounds are not redressed timely, it is crucial to administer tetanus antitoxin treatment.

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Written by Xu Jun Hui

General Surgery

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Does a tetanus shot stimulate the brain?

Tetanus shot, if administering tetanus toxoid, a skin test is required before injection. If the skin test is negative and there is no allergy, then the injection can proceed without stimulating the brain. A small proportion of patients undergoing anti-tetanus treatment might experience some uncomfortable reactions, commonly allergies, fever, and symptoms of vomiting. Generally, these can be alleviated with rest or symptomatic treatment. Only less than 1% of patients may experience seizures or coma, which are very rare reactions. If such reactions occur, it is urgent to go to a formal hospital for symptomatic and supportive treatment. For the vast majority of tetanus shots, if administered in a formal hospital and the patient has a negative skin test, or if given tetanus immunoglobulin, it does not stimulate the brain.

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Written by Zhang Da Wei

General Surgery

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Contraindications after a tetanus shot

Generally, after receiving a tetanus shot, it is important to check for signs of redness and itching, which are indicators of an allergic reaction. If there are no signs of an allergy, there generally is no need for concern. However, if allergic reactions do occur, it is usually necessary to administer the vaccine in divided doses using a desensitization method to effectively prevent the worsening of allergic symptoms. Of course, after such reactions, it is crucial to avoid certain foods and to improve lifestyle habits. Dietary irritants or stimulants from tobacco and alcohol can potentially damage the vaccine, leading to its ineffectiveness. Therefore, the situation should generally be assessed based on the individual's condition. Additionally, it is important to ensure timely local disinfection to prevent infections.