Vaccines - Impact Timeline Diphtheria Polio Pertussis Hepatitis B Measles Chickenpox Hepatitis A Mumps Rubella Bubbles represent reported U.S. cases, but not all diseases were notifiable in all years. For example, mumps was not reported until 1968, the year after a vaccine was licensed. #Vaccines #Impact #Timeline #Policy #ReportedCases #Effects
