Overexpression of the adeB Gene in Clinical Isolates of Tigecycline-Nonsusceptible Acinetobacter baumannii without Insertion Mutations in adeRS

Overexpression of the adeB Gene in Clinical Isolates of Tigecycline-Nonsusceptible Acinetobacter baumannii without Insertion Mutations in adeRS Tigecycline Efflux as a Mechanism for Nonsusceptibility in Acinetobacter baumannii In Vivo Selection of a Missense Mutation in adeR and Conversion of the Novel bla _OXA-164 Gene into bla _OXA-58 in Carbapenem-Resistant Acinetobacter baumannii Isolates from a Hospitalized Patient Correlation of Antimicrobial Resistance with β-Lactamases, the OmpA-Like Porin, and Efflux Pumps in Clinical Isolates of Acinetobacter baumannii Endemic to New York City Emergence of an Enterobacter hormaechei Strain with Reduced Susceptibility to Tigecycline under Tigecycline Therapy AdeIJK, a Resistance-Nodulation-Cell Division Pump Effluxing Multiple Antibiotics in Acinetobacter baumannii Screening and Quantification of the Expression of Antibiotic Resistance Genes in Acinetobacter baumannii with a Microarray Combined ramR Mutation and Presence of a Tn 1721 -Associated tet (A) Variant in a Clinical Isolate of Salmonella enterica Serovar Hadar Resistant to Tigecycline In Vitro Activity of Tigecycline against Multidrug-Resistant Acinetobacter baumannii and Selection of Tigecycline-Amikacin Synergy Acquisition of a Plasmid-Borne bla _OXA-58 Gene with an Upstream IS 1008 Insertion Conferring a High Level of Carbapenem Resistance to Acinetobacter baumannii