Penicillin

Anaerobic gram positive spore-forming bacilli. Produces toxins that cause painful muscle contractions in humans (lockjaw)

• Unvaccinated or incompletely vaccinated individuals with deep wound
• Note: there is no herd immunity as the organism is found in soil/earth and not transmitted person-to-person

Tetanus:

• generalized
• localized
• cephalic
• neonatal