In the early 2000s, the rotavirus vaccine was withdrawn because of its association with an increased incidence of intussusception. In 2007, a new and improved version of the vaccine was introduced. How does the risk of intussusception compare? Tate et al. ( 10.1542/peds.2016-1082) investigated intussusception rates before and after the introduction of the current form of the vaccine using data from 26 states.
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