Tetanus is caused by which type of organism?

Tetanus is caused by an organism known as Clostridium tetani, which is a type of bacteria. This bacterium is anaerobic, meaning it thrives in environments without oxygen and is commonly found in soil, dust, and animal feces. When the spores of Clostridium tetani enter the body, typically through wounds, they can produce a potent toxin that leads to the symptoms associated with tetanus, such as muscle stiffness and spasms.

The choice of Clostridium tetani as the correct answer provides clarity on the nature of the organism responsible for tetanus. This knowledge is crucial for understanding how to prevent tetanus through vaccinations and wound care practices, including the use of tetanus immunoglobulin for high-risk injuries.

Understanding the specific characteristics of Clostridium tetani emphasizes the importance of its anaerobic nature, as it is a critical factor in the pathophysiology of the disease. Other potential options, such as aerobic bacteria or viral pathogens, do not accurately describe the causative agent and thus highlight the need for precise classification in infectious diseases.