Digital illustration of Clostridium tetani, Clostridium perfringes, Clostridium difficile, model of bacteria, bacterium which causes tetanus, gas gangrene, wound infection, spore forming bacteria

What Is Tetanus?

Tetanus, commonly called lockjaw, is a bacterial disease that affects the nervous system. It is contracted
through cuts or wounds that become contaminated with tetanus bacteria. Spores from the bacteria can get in through deep puncture wounds or cuts like those made by nails or knives, but even a scratch can provide an entryway. People who have crush injuries, burns, or frostbite are at risk for tetanus. Tetanus bacteria are present worldwide and are commonly found in soil, dust, and manure. The tetanus bacteria produce a toxin, which causes severe muscle spasms, leading to “locking” of the jaw, making it hard to open the mouth or swallow. In severe cases, tetanus infections can lead to death by suffocation.

Tetanus is a vaccine-preventable disease that is not transmitted from person to person.


Due to widespread immunization, tetanus is a rare disease in the US.


Common initial symptoms of tetanus are a headache and muscular stiffness in the jaw (lockjaw) followed by stiffness of the neck, difficulty swallowing, hardening of abdominal muscles, spasms, sweating, and fever. Symptoms usually begin around eight days following infection, but onset may range from three days to three weeks.


Vaccination is the best way to prevent tetanus. Most infants receive a first dose in the form of a combined vaccine called DTaP (diphtheria-tetanus-acellular pertussis). Health officials now recommend that adults and adolescents receive a Tdap (tetanus-diphtheria-acellular pertussis) or Td (tetanus-diphtheria) booster vaccine every 10 years.


Immediate and good wound care is important. People with tetanus require prompt treatment that may include tetanus immune globulin, drugs to control spasms, antibiotics, and supportive care. Additional vaccine may be needed.

Fact: Tetanus can be prevented with a safe and effective vaccine.

Fact: People with tetanus may have to spend several weeks in the hospital under intensive care.

Fact: Tetanus is not transmitted from one person to another.

Fact: Recovery from tetanus illness may not result in lifelong immunity. Another infection could occur unless immunization is provided soon after the person’s condition has stabilized.

Updated June 2020
Source: Centers for Disease Control and Prevention

Related Resources

February 2024 ACIP Meeting Updates Webinar Presenters
March 20, 2024 1:00 pm

Updates from February 2024 Advisory Committee on Immunization Practices (ACIP) Meeting

Webinar discussion includes an overview of updates from the February 2024 Advisory Committee on Immunization Practices (ACIP) meeting, focused on US vaccination recommendations for children, adolescents, and adults …

Learn More
Immunization Recommendations During Pregnancy webinar panelists
November 2, 2023 12:00 pm

Immunization Recommendations During Pregnancy

In this recorded webinar, NFID Medical Director Robert H. Hopkins, Jr., MD, moderates a discussion with presentations by NFID Director Kevin A. Ault, MD, Western Michigan University Homer Stryker MD School of Medicine; and Naima Joseph, MD, MPH, Boston University School of Medicine and Boston Medical Center

Learn More
Addressing Vaccine Hesitancy in the US
June 29, 2023 12:00 pm

Addressing Adult Vaccine Hesitancy in the US

In this webinar, speakers adult vaccine hesitancy in the US. This activity features interactive case studies to address current vaccine recommendations and gaps in coverage. Presenters share strategies for effective communication on vaccine recommendations for influenza (flu), pneumococcal disease, hepatitis B, Tdap, and COVID-19 for US adults …

Learn More