Seshu Brahma and Rebecca Parker 3rd
Polio prevents the contagious disease poliomyelitis. There are two polio vaccines used around the world. The first dose of polio vaccine is usually given 1 to 2 months after birth. The second dose is given at 4 months. The third dose is given between 6-18 months and the fourth dose is given at 4 to 6 years of age.
Symptoms and Side Effects
Symptoms of the disease polio are: paralysis, vomiting, breathing problems, muscle spasms, and fatigue. Common side effects of the vaccine are tiredness, irritability, and tenderness at injection site. Some more serious, but rare side effects are: trouble breathing, hoarseness, and wheezing.