Microbiological Diagnosis and Management of Tetanus

Clinical Presentation and Diagnosis

• In 4% of tetanus cases, no wound or other condition can be identified, highlighting the importance of clinical diagnosis 1
• The Centers for Disease Control and Prevention recommends recognizing tetanus through clinical presentation, including progressive muscle rigidity and spasms, rather than relying on laboratory confirmation 1

Specimen Collection and Management

• If wound culture is attempted, the Centers for Disease Control and Prevention and the Infectious Diseases Society of America recommend obtaining tissue from the wound site through biopsy or deep aspiration rather than surface swabs 2 3
• The specimen should be from the advancing margin of the lesion or deep tissue, as surface swabs are inadequate 2 3
• Thorough wound cleaning and debridement should be performed regardless of culture results, as recommended by the Centers for Disease Control and Prevention 4

Immediate Management

• The Centers for Disease Control and Prevention recommends administering human Tetanus Immune Globulin (TIG) promptly to neutralize circulating toxin 6
• The American College of Physicians and the Infectious Diseases Society of America recommend performing surgical debridement of the wound to remove the source of ongoing toxin production 5
• The Centers for Disease Control and Prevention recommends initiating antimicrobial therapy with metronidazole (preferred) or penicillin G 5