Defining the minimum inhibitory concentration of 22 rifamycins in iron limited, physiologic medium against Acinetobacter baumannii, Escherichia coli, and Klebsiella pneumoniae clinical isolates.

Lu, Peggy; Alletto, Francesco; Lee, Bosul; Burk, Elizabeth; Martinez, Jasmine; Prati, Fabio; Caselli, Emilia; Spellberg, Brad et al. · PLoS One · 2023

basic_science · Level V

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Abstract

Recently, we reported rifabutin hyper-activity against Acinetobacter baumannii. We sought to characterize if any additional rifamycins (n = 22) would also display hyper-activity when tested in iron-limited media against A. baumannii, K. pneumoniae, and E. coli. MICs were determined against representative clinical isolates using the iron-limited media RPMI-1640. Only rifabutin was hyperactive against A. baumannii.

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