Is tetanus I disorder of the nervous system that is always caused by bacteria?

Tetanus is not classified as a disorder of the nervous system in the traditional sense; rather, it is a serious bacterial infection caused by Clostridium tetani. This bacterium produces a toxin that affects the nervous system, leading to severe muscle stiffness and spasms. While the effects are neurological, the root cause is bacterial, specifically from spores found in soil, dust, and animal feces. Therefore, tetanus is primarily an infectious disease with neurological manifestations rather than a direct nervous system disorder.