In cases other than satisfactory, the infection starts with fever, sore throat, headache, nausea, vomiting, diarrhea, stiffness in the neck and back. These symptoms persist for 2 to 10 days and the patient may recover completely without any paralysis. Symptoms of paralysis, usually after two days of the start of the role of severe and before the temperature drop, and be accompanied by sudden paralysis of the muscles of the limbs, face and chest, breathing muscles, and the maximum recovery within 6 months.
