|Disease||What It Does||Why Immunize?|
|Polio||Virus that causes acute paralysis and death.||Prior to immunization, there were 13-20,000 cases annually; in 2000 there were none in US, but still
active in > 12 countries worldwide.
|Measles||Viral syndrome that can cause complications (including encephalitis with brain damage) in almost 10% of
|Cases are now very rare in the U.S. but still occur worldwide. If vaccination was suspended 2. 7 million
deaths would be expected worldwide.
|Haemophilus lnfluenzae Type b (HIB)||Prior to immunization, the leading cause of bacterial meningitis, and epiglottitis.||Prior to HIB vaccines, 600 pediatric deaths per year. Recent outbreak with deaths in Midwest, &
|Pertussis||Also known as Whooping Cough, this illness can lead to pneumonia, seizures and death particularly in
young infants under age one year.
|Currently a resurgence; prior to immunization, 250,000 cases per year, 9000 deaths. 9 recent deaths in
CA in unimmunized infants.
|Rubella (German measles)||Mild viral disease in children, but in pregnant women, leads to heart defects, mental retardation,
|Before vaccination there were 20,000 babies born annually with birth defects.|
|Varicella (Chicken Pox)||Highly contagious viral illness. Can lead to complications such as pneumonia, bacterial skin infections,
dehydration as well as significant school/ work absence.
|Prior to immunization there were 11,000 hospitalizations and 100 deaths annually in the U.S. secondary
to bacterial complications.
|Hepatitis B||Liver infection with risk of liver failure or cancer.||Up to 25% of children who are infected may die from the infection.|
|Diphtheria||Severe throat infection which produces a toxin that causes heart and nerve problems.||Death rate after infection was 20% of cases prior to immunization. Not seen in U.S., still occurs
|Tetanus||Severe, often fatal disease leading to spasm and stiffness of the jaw and muscles.||30% of infections cause death. Worldwide there are still >100,000 deaths from lack of immunization.|
|Mumps||Viral infection in the salivary glands; can cause deafness, swelling of the brain, nerves and spinal
cord, and sterility in males.
|Before immunization there were 200,000 cases annually, now reduced to about 300.|
|Pneumococcus||Leading cause of blood infection, bacterial meningitis, pneumonia and ear infections.||Prior to vaccine, 6,100 annual deaths in US.|
|Rotavirus||Vomiting and watery diarrhea, often lasting 3-8 days or longer; may require hospitalization for
|Globally, still 527,000 deaths per year. Prior to vaccine, 20-60 deaths in US per year; >600,000
visits per year.