Can You Opt Out of School Vaccines?

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Three line graphs display the dramatic decline in reported cases of diphtheria, polio, and measles in the United States from 1920 to 2019, each showing a sharp drop after the introduction of their respective vaccines. Diphtheria cases fell after 1921, polio after 1955, and measles after 1963, illustrating the impact of mass vaccination programs. An inset highlights an increase in measles cases after 2010.

U.S. federal and state vaccine guidelines

Can You Opt Out of School Vaccines?: Media

Images

Three line graphs display the dramatic decline in reported cases of diphtheria, polio, and measles in the United States from 1920 to 2019, each showing a sharp drop after the introduction of their respective vaccines. Diphtheria cases fell after 1921, polio after 1955, and measles after 1963, illustrating the impact of mass vaccination programs. An inset highlights an increase in measles cases after 2010.

Historical mass vaccination programs in the United States

In the United States, mass vaccination programs carried out against diphtheria, polio,...

Encyclopædia Britannica, Inc.

Interactives

U.S. federal and state vaccine guidelines

U.S. federal and state vaccine guidelines

Although some U.S. states rely solely on federal childhood vaccine guidance, others...

Encyclopædia Britannica, Inc.