A Parent’s Guide to Childhood Immunization

Disease Caused by Spread by Complications Chickenpox Varicella-zoster virus Air or direct contact Bacterial infections, meningitis, encephalitis, pneumonia, or death Diphtheria Corynebacterium diphtheriae Air or direct contact Heart failure, paralysis, pneumonia, or death Hib disease Haemophilus influenzae type b Air or direct contact Meningitis, epiglottitis, pneumonia, arthritis, or death Hepatitis A Hepatitis A virus Personal contact or through food or water Liver failure or death 24

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