What is the purpose of immunizations and what are the state requirements?

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Disease prevention is the goal of public health. It is always better to prevent a disease than to treat it. Vaccines prevent disease in those who receive them and in the community who come in contact with unvaccinated individuals. Vaccines are responsible for the control of many infectious diseases that were once common in the U.S. These include polio, whooping cough, measles, diphtheria, rubella, mumps, tetanus and Haemophilus influenzae type B, and varicella.  Before vaccines, many children died from diseases that vaccines now prevent.

The laws regarding Oregon's immunization requirements occasionally change. Please review updated requirements and timeline below.