Symptoms can include sudden fever, sore throat, headache, muscle weakness, and pain. Polio can cause paralysis and death. Symptoms include a rash, fever, cough, and watery eyes. Measles can also cause pneumonia, brain damage, seizures, or death. The mumps virus causes fever, headaches, and swollen salivary glands under the jaw.
Mumps can also result in permanent hearing loss.
But if a pregnant woman gets rubella, she can lose her unborn baby, or the baby can be born blind, deaf, or mentally retarded or with heart defects or other serious problems. It can also cause pneumonia and infection of the blood, joints, bone, throat, and heart covering. This disease is very serious for children younger than five, especially infants. Hepatitis B is an infection of the liver caused by a virus. It spreads through contact with blood or other body fluids.