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National frequencies of ESBL producers among (a) Escherichia coli and (b) Klebsiella pneumoniae isolates in Latin American hospitals.30, 32, 33 ESBL, extended spectrum β-lactamase; SMART, Study for Monitoring Antimicrobial Resistance Trends; TEST, Tigecycline Evaluation and Surveillance Trial. In SENTRY 2008–2010 report, only the 4 countries with highest rates of ESBL production were reported.
