Study offers new guidelines for vaccines


Researchers at Kaiser Permanente in Oakland studied more than 450,000 children nationwide. They suggest giving children two different shots to prevent the measles, mumps, rubella and chicken pox.

Currently, doctors give a single shot to fight the four diseases, but the study found it doubles the risk of seizures in children between ages 1 and 2.

The study is published in today's journal "Pediatrics."

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