What are the symptoms and complications of polio?
Symptoms of the disease range in severity from no symptoms to a disease which may cause paralysis and death. Symptoms include fever, tiredness, headache, nausea and vomiting, very painful muscle spasms and stiffness in the neck and back. How soon after infection do symptoms appear? The incubation period is usually 7-14 days in cases that have paralysis, with a range of 3 to 35 days. When and for how long is a person able to spread polio? Persons may be infectious from three days before to three weeks after the onset of symptoms and as long as the virus is present in the throat and feces. It is most infectious during the first few days before and after the start of symptoms. Does past infection with polio make a person immune? There are three types of polio virus. Life-long immunity usually depends on which type of virus a person contracts. Second attacks are rare and result from infection with a polio virus of a different type than occurred in the first attack. What is the treatment fo
