Tetanus is a potentially fatal disease that affects the nervous system. It's caused by bacteria known as Clostridium tetani, which produce spores in dead tissue, such as carrion and animal excrement. So it might occasionally be found on fingernails or blades of grass.
An infectious disease doctor specializes in diseases caused by infectious agents such as bacteria, viruses, fungi, and parasites. They are responsible for diagnosing, treating, and preventing infections, including conditions like tuberculosis, HIV/AIDS, malaria, and hospital-acquired infections. They use laboratory tests, cultures, and other diagnostic methods to identify infectious agents and determine the most effective treatments. It is advisable to see an infectious disease specialist if you experience persistent symptoms of infection, fever of unknown origin, recurrent infections, or complex infectious diseases.
Remember that for the proper selection of health professional that treats tetanus you must consider the nature, severity and symptoms you are presenting.