Basic: Causes, and Symptoms of Tetanus.

Symptoms:
Signs and symptoms of tetanus may appear anytime from a few days to several weeks after tetanus bacteria enter your body through a wound. The average incubation period is
seven to eight days.
Common signs and symptoms of tetanus, in order of appearance, are:
- Spasms and stiffness in your jaw muscles
- Stiffness of your neck muscles
Difficulty swallowing
- Stiffness of your abdominal muscles Painful body spasms lasting for several minutes, typically triggered by minor occurrences, such as a draft, loud noise, physical touch or light
Other signs and symptoms may include:
- Fever
- Sweating
- Elevated blood pressure
- Rapid heart rate.

Causes:
The bacteria that cause tetanus,
Clostridium tetani, are found in soil, dust and animal feces. When they enter a deep flesh wound, spores of the bacteria may produce a
powerful toxin, tetanospasmin, which actively impairs your motor neurons, nerves that control your
muscles. The effect of the toxin on your motor neurons can cause muscle stiffness and spasms — the major signs of tetanus.