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We identified 21 rotaviruses in 129 patients with diarrhea in a Brazilian city with high rotavirus vaccine coverage. All rotaviruses were genotype P[4]G2 with 1 mixed infection with P[NT]G9. Although virus predominance could have occurred randomly, the vaccine may be less protective against P[4]G2. Prospective surveillance is urgently needed.
To the Editor: Gurgel et al. described the predominance of P[4]G2 rotaviruses in a vaccinated population in Aracaju, northeastern Brazil (1). However, several limitations need to be addressed to avoid misinterpretation of data that could lead to loss of confi dence in the vaccine in Brazil and other countries. Brazil was one of the fi rst countries in Latin(More)
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