In 2006, the results of pivotal clinical trials of two new rotavirus vaccines were published, and high efficacy against severe rotavirus diarrhea was reported for both products. Drs. Umesh Parashar and Roger Glass write that a key unanswered question is whether rotavirus vaccines will work equally well in the developing world, where they offer the greatest potential lifesaving benefits.
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Parashar et al. (2009) studied this question.
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