I'm about to run out of credit x-med.com Some states are trying to change that trend, making it more difficult to obtain exemptions. In Washington state, where kindergarten exemption rates peaked at 7.6 percent in 2008, public health officials changed the school paperwork two years ago, separating the vaccine record from the exemption form, said Dr. Ed Marcuse, a professor of pediatrics and epidemiology at the University of Washington.
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