gram-positive, obligate anaerobic, spore-forming rod shape bacterium drumstick appearance. MORPHOLOGY
Heat resistant spores and usual antiseptics. survive autoclaving at 121°C for 10-15 minutes . resistant to phenol and other chemical agents . RESISTANCE
O rganism is sensitive to heat. Sensitive to oxygen. SENSITIVITY
Tetanus acute , often fatal, disease caused by an exotoxin produced by Clostridium tetani . rigidity and convulsive spasms of skeletal muscles. involves the jaw (lockjaw) and neck and then becomes generalized. EPIDEMIOLOGY
Enters through the wound. Spores germinate in the presence of anaerobic condition. Tetanospasmin spread in through blood and lymphatic. Interferes with release of neurotransmitters, blocking inhibitor impulses. PATHOGENESIS
3 to 21 days Neonatal tetanus , symptoms usually appear from 4 to 14 days after birth INCUBATION PERIOD
Man Suffering from Tetanus
LOCAL (Uncommon) CEPHALIC (Rare) GENERALIZED (Common) CLASSES
persistent contraction of muscles in the same anatomic area as the injury . Precede the onset of generalized tetanus, but is generally milder. 1 % of cases are fatal. LOCAL
Occurs with otitis media (ear infections) Head injuries. Involvement of the cranial nerves, especially in the facial area . CEPHALIC
Trismus stiffness of the neck and difficulty in swallowing rigidity of abdominal muscles. rise of 2°-4°C above normal temp. sweating and elevated blood pressure episodic rapid heart rate Spasms GENERALIZED
Occurs in infant infection of the unhealed umbilical estimated >270,000 deaths worldwide per year. Neonatal tetanus
Tetanospasmin VIROLENCE FACTOR
VIROLENCE FACTOR Mechanism of Action
Mouse inoculation Diagnosis
Medical Management Tetanus immune globulin (TIG ) Intravenous immune globulin (IVIG) Wound Management proper immunization Prevention & Control