After an evaluation of 800,000 doses of pentavalent rotavirus vaccinations in U.S. infants, researchers reported in the February 8 issue of JAMA that there is no increased risk of intussusception after vaccination, despite some previous data indicating that those infants who received the vaccine were at potential increased risk. Intussusception is a condition whereby a portion of the small or large intestine slides forward into itself, like a telescope...

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