Pruno is alcoholic beverage produced from potatoes. The pathogenesis of botulism requires several steps as follows to cause illness in inmates. 1. First, the potatoes were contaminated with the soil contaminated with clostridium botulinum endospores. 2. The conditions in the bag for pruno were favourable for germination. 3. Clostridium botulinum replicated and increased in the number. 4.Bacterial cells produced the toxins. 5. The toxin remained in the pruno after straining. 6. The inmates drank the contaminated pruno and became ill. Solution Pruno is alcoholic beverage produced from potatoes. The pathogenesis of botulism requires several steps as follows to cause illness in inmates. 1. First, the potatoes were contaminated with the soil contaminated with clostridium botulinum endospores. 2. The conditions in the bag for pruno were favourable for germination. 3. Clostridium botulinum replicated and increased in the number. 4.Bacterial cells produced the toxins. 5. The toxin remained in the pruno after straining. 6. The inmates drank the contaminated pruno and became ill..