Social & Preventive Medicine A case of acute flaccid paralysis must be observed for how many days for residual weakness in poliomyelitis? A 30 days B 42 days C 60 days D 90 days 💡 Explanation A case of acute flaccid paralysis must be observed for how many days for residual weakness in poliomyelitis? ✓ Correct Answer: C. 60 days