Clinical Distribution Characteristics of 1439 Carbapenem-Resistant <i>Escherichia coli</i> Strains in China: Drug Resistance, Geographical Distribution, Antibiotic MIC50/90.

From 2017 to 2019, 1439 strains of CR-ECO were isolated from Hebei Province, China, according to administrative regions, with Shijiazhuang ranking first with 445 strains (30.92%); Tangshan second with 341 strains (23.70%); Cangzhou third with 172 strains (11.95%, and Handan fourth with 103 strains (7.16%), as shown in Table 2 . Analysis of trend results of drug resistance rates from 2017 to 2019 yielded the following: all β-lactamides showed an increasing trend, except ertapenem, which first decreased and then increased.

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