Which therapy is used to neutralize toxins in tetanus infection?

Which therapy is used to neutralize toxins in tetanus infection?

• A. Antibiotics
• B. Vaccination
• C. Antitoxin
• D. Hyperimmune globulin

Answer: (C)

The main idea is neutralizing circulating toxin to stop ongoing toxin effects. In tetanus, the toxin tetanospasmin travels to the nervous system and blocks inhibitory signals, causing severe muscle spasms. To stop this process, you give tetanus antitoxin, which contains antibodies that bind free toxin in the circulation. By binding the toxin, the antibodies prevent it from entering nerve tissue and spreading damage. Importantly, this treatment can’t reverse damage that the toxin has already caused after it’s bound to neurons, but it can prevent further injury from additional toxin. That’s why antitoxin is the key therapy for neutralizing the toxin in an active tetanus infection. Vaccination, while crucial for future protection, won’t help treat an active infection, and antibiotics plus wound care address the bacterial source but don’t neutralize the toxin once it’s circulating. Hyperimmune globulin is essentially a concentrated antibody preparation with the same neutralizing effect, but in the terms of this question the standard label for stopping circulating toxin is antitoxin.

The main idea is neutralizing circulating toxin to stop ongoing toxin effects. In tetanus, the toxin tetanospasmin travels to the nervous system and blocks inhibitory signals, causing severe muscle spasms. To stop this process, you give tetanus antitoxin, which contains antibodies that bind free toxin in the circulation. By binding the toxin, the antibodies prevent it from entering nerve tissue and spreading damage. Importantly, this treatment can’t reverse damage that the toxin has already caused after it’s bound to neurons, but it can prevent further injury from additional toxin. That’s why antitoxin is the key therapy for neutralizing the toxin in an active tetanus infection. Vaccination, while crucial for future protection, won’t help treat an active infection, and antibiotics plus wound care address the bacterial source but don’t neutralize the toxin once it’s circulating. Hyperimmune globulin is essentially a concentrated antibody preparation with the same neutralizing effect, but in the terms of this question the standard label for stopping circulating toxin is antitoxin.