The hepatitis B virus can cause liver damage, liver cancer and death. It is the second most common cause of human cancer. Flu is spread through sneezing, coughing or direct contact with the infected individual. Children and family members with certain long-term health problems, such as asthmaor diabetes are especially at risk for serious complications from the flu. Such complications include pneumonia, dehydration, meningitis, and even death.
Influenza is a major cause of death among elderly persons.
Measles causes a high fever, rash, and cold-like symptoms. It can lead to hearing loss, pneumonia, brain damage, and even death. Measles spreads so easily that a child who has not been immunized will most likely get the disease if exposed to it. Mumps can cause headache, fever, swelling of the glands of the jaw and neck, and swelling of the testicles in adolescents and adults. Pregnant women who get rubella can lose their babies, or have babies with severe birth defects such as hearing loss, heart problems and mental retardation.