8/19/2014

During the 2011-12 whooping cough outbreak, the vaccination rate slightly rose for infants in Washington state, but dropped down again after the outbreak, according to a study in the journal Pediatrics. Another team of researchers found lower immunization rates in children whose parents refused to give them vitamin K. Another study published in the same journal showed that parents respond best to health messages that highlight the benefits of vaccination for the child.

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