The symptoms of non-paralytic polio persist for 10 days. However, they may persist for a week and then accompanied by more symptoms indicating paralytic syndrome. The findings include • Severe muscle ache and weakness • Flaccid paralysis • Loss of reflexes The infection may resolve but some signs and symptoms may appear few years later indicating post polio syndrome. The symptoms include • Fatigue • Muscle atrophy • Dysphagia • Breathing problems • Sleep apnea • Decreased cold tolerance • Muscle and joint pain and weakness