We identified 3 atypical Shigella flexneri varieties in China, including 92 strains with multidrug resistance, distinct pulse types, and a novel sequence type. Atypical varieties were prevalent mainly in developed regions, and 1 variant has become the dominant Shigella spp. serotype in China. Improved surveillance will help guide the prevention and control of shigellosis.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3713959PMC
http://dx.doi.org/10.3201/eid1907.111221DOI Listing

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