Is tetanus an anaerobic bacterium?

Written by Liu Huan Huan

General Surgery

Updated on January 20, 2025

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Tetanus is a specific infection often associated with trauma. In addition to various traumas, it can also occur in parturient women and newborns under unsanitary conditions. The pathogen is Clostridium tetani, an obligate anaerobe that stains positive under Gram staining conditions. Normally present in the intestines of humans and animals, it is distributed in nature and common in soil. This type of bacteria has strong resistance to environmental conditions and can withstand boiling.

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Is tetanus fatal?

Tetanus infection is quite frightening, with current statistics showing that the mortality rate of tetanus infections can be as high as 40%, and about a million people die from tetanus globally each year. The current principle is to promptly inject tetanus antitoxin or tetanus immunoglobulin for sharp, deep wounds. For tetanus infection, the main symptoms manifest as local or systemic muscle rigidity and spasms. The incubation period varies; if a tetanus vaccination has been previously administered, or depending on the infection and treatment of the wound, the severity of the onset can differ. The prodromal period typically presents symptoms like dizziness, headache, heightened reflexes, restlessness, and possible difficulty opening the mouth; during the convulsive phase, there is continuous muscle contraction, eventually causing persistent spasms in the diaphragm and intercostal muscles.

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Is tetanus painful?

Tetanus is a specific infectious disease in surgery, caused by the exotoxin of Clostridium tetani. Tetanus infection can lead to rigid muscle spasms, which is a disease with a high mortality rate. Although its treatment is difficult, the prevention is effective, so tetanus infections can be avoided by vaccinating with the tetanus vaccine. The tetanus shot includes human tetanus immunoglobulin and tetanus antitoxin serum. The injection of human tetanus immunoglobulin is administered via muscle and is not very painful, generally tolerable. The injection of tetanus antitoxin serum, being a foreign protein to the body, requires an initial sensitivity test. The pain is evident, as the sensitivity test involves a skin prick.

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How deep does a wound have to be to cause tetanus?

There is no specific rule about how deep a wound needs to be to develop tetanus. Generally, any relatively contaminated wound that is sharp and deep should receive a prompt tetanus injection, as tetanus is a strictly anaerobic bacterium. Generally, if a wound is particularly prone to forming a locally hypoxic environment, active immunization should be pursued. Usually, the following types of wounds should be given high attention: deep puncture wounds, bullet or shrapnel injuries, open fractures, or crush injuries. Burns, frostbites that require surgical intervention, and wounds that have not been treated in a timely manner after more than six hours should also be taken seriously. Attention should be heightened if there are foreign objects in the wound or a significant amount of necrotic tissue, especially if contaminated by surrounding dust or animal feces.

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Written by Liu Huan Huan

General Surgery

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Can you get a tetanus shot when you have a cold?

The patient is in a state of having a cold. During this time, if a part of the body is injured and the wound is deep, there is a possibility of infection by tetanus bacillus, which can cause corresponding clinical symptoms. This is because the deep wound facilitates the growth and reproduction of tetanus bacillus, producing exotoxins, mainly the spasm toxin, which can cause the patient to exhibit symptoms related to tetanus. Therefore, even if the patient has a cold, it is advised to seek timely medical treatment at a hospital for wound disinfection and to receive a tetanus antitoxin injection. Having a cold is not a contraindication for receiving a tetanus shot.

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Which department should I go to at the hospital for a tetanus shot?

Tetanus shots should be administered at a regular hospital in the emergency department. There are two types of tetanus injections: one that requires a skin test, called tetanus toxoid, and one that doesn't require a skin test, called tetanus immunoglobulin. It is generally recommended to get the tetanus shot within 24 hours of injury, and it is best to avoid alcohol before the injection. Drinking can cause dilation and reddening of the skin's capillaries, which can affect the results of the tetanus skin test. Tetanus is usually caused by the invasion of Clostridium tetani into the body, a type of anaerobic bacterium. Thus, for wounds that are small, deep, and heavily contaminated, such as with dirt, rust, or in cases of open fractures, anti-tetanus treatment is essential, and a tetanus shot can be administered in the hospital's emergency department.