How Vaccination Rates Have Changed, State by State


Reposted from the Wall Street Journal:

Amid the current concern over vaccinations, there are notable differences state-to-state in the percentage of children who have had their MMR (for measles, mumps and rubella) shot. Nationwide, 91.9 % of 19- to 35-month-olds have had their MMR shot, according to the Centers for Disease Control’s National Immunization Survey. That’s actually up from 2000, when 90.5% had been immunized, but it is down from 2006, when the figure was 92.3%.

The numbers in the states show much more movement, however. Some have seen the vaccination numbers climb and others have seen them fall. Among various differences that would affect vaccination rates, states also have different rules about requiring vaccinations, with some offering more leeway for concerned parents to opt out.

The new concerns about vaccination rates come amid a rising number of measles cases. Last year, there were more than 640 measles cases, the largest number recorded since measles was documented as being eliminated in 2000. And there were a further 102 cases in January 2015, tied to an outbreak at Disneyland in California. These maps show some sharp movements, particularly in Ohio, Missouri, West Virginia, Connecticut and Virginia. All have seen declines of five points or more among the vaccinated using these CDC data.

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