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How Vaccinated Are California Kindergarteners?

By John C. Osborn, April 7, 2014

Use this database to investigate how many kindergarten students were vaccinated at any public, charter or private California elementary school in the 2013-14 school year. California law mandates that kindergarten students be up-to-date on a number of vaccines that help prevent childhood diseases, such as whooping cough, measles and polio. However, the law also allows the parent or guardian of a student to exempt the child from vaccines based on personal beliefs. The data shows that rural students are more likely to attend schools where a large number of students have personal belief excemptions, and public charter and private schools in general also have greater numbers of students with exemptions than non-charter public schools. | Related Story: Under new law, school nurses aim to stop rise in vaccination opt-outs

DEFINITIONS

Herd Immunity: The percentage of people within a population that need to be vaccinated to protect all people from a disease, generally considered to be 90 percent.

Up-To-Date: A child has recieved all the required vaccinations as required by state law.

Personal Belief Exemption: A parent or guardian of a child signed a waiver to exempt the child from vaccines based on personal reasons.

Personal Medical Exemption: A child has a medical condition, verified by a health professional, that exempts the child from a vaccine. This could be due to allergies, for example.

Conditional: A child has met some, but not all, of the vaccination requirements.

Scroll over bars in chart below to get more detailed information.

Comparing California Counties

Percentage of ALL kindergarten students immunized by county in California.

Herd Immunity
No Herd Immunity

100% 80% 60% 40% 20% 0%

Select from the options above to pick an elementary school

, County |

school with students enrolled in kindergarten during 2013-14 school year

Herd Immunity
No Herd Immunity

Up-to-Date

Conditional

Medical

Belief

DTP

Polio

MMR

Hepatitis B

Varicella