Four Escherichia coli strains isolated from oral lichen planus biopsies were characterized. The strains were found to possess 53 antibiotic resistance genes, including the APH(3')-IIa gene, which inactivates aminoglycosides. The strains exhibited resistance to kanamycin, which was consistent with their genotype.

The study identifies and characterizes various AMR genes, including blaCTX-M-55, rmtB, oqxAB, blaTEM-1b, floR, tet(A), strA, strB, sul1, sul2, aac(3)-IId, aadA2, dfrA12, and aph(3′)-IIa, in a multidrug-resistant E. coli strain. These genes contribute to resistance against multiple antibiotics such as beta-lactams, aminoglycosides, fluoroquinolones, tetracyclines, sulfonamides, and trimethoprim.

The study identified multiple antimicrobial resistance genes, including bla NDM-5, bla OXA-10, and bla TEM-1B, in NDM-5-producing Enterobacteriaceae isolates from an urban river in China. These genes conferred resistance to various antibiotics such as carbapenems, cephalosporins, quinolones, and aminoglycosides.

The study identified 1295 open reading frames recognized as antimicrobial resistance protein-coding genes in porcine gut microbiomes, highlighting tetracycline, aminoglycoside, and MLS resistance as predominant. Key ARGs like tet(W/N/W), APH(3')-IIIa, and ErmB were found to be highly prevalent and associated with resistance to specific antibiotics.

The study identified multiple antibiotic resistance genes in E. coli populations from cattle manure, including genes conferring resistance to tetracycline, aminoglycosides, chloramphenicol, sulfonamides, and glycopeptides. These genes were found to be associated with mobile genetic elements, highlighting the potential for horizontal gene transfer.

The study identified 16 antimicrobial resistance genes (ARGs) in silage samples, highlighting their potential to spread through the food chain and contribute to antimicrobial resistance.

The study identified 99 antibiotic resistance genes, including aadA24 and aph3'-IIa, which confer resistance to aminoglycosides.

The study identifies numerous AMR genes in Mycobacteroides abscessus complex, highlighting the widespread presence of resistance to multiple antibiotic classes, including beta-lactams, aminoglycosides, glycopeptides, and others. Key findings include the detection of beta-lactamases like blaLAP-1 and blaTLA-2, 23S rRNA methyltransferases such as erm(33), erm(43), and erm(44), and various aminoglycoside modifying enzymes. Additionally, vancomycin resistance genes like vanA, vanB, and vanC were identified, along with efflux pump genes contributing to multidrug resistance.

The study identified several AMR genes in Salmonella isolates from chickens in Anhui, China, including blaTEM, blaCMY-2, aadA, strA, aph(3')-IIa, aac(6')-Ib-cr, qnrB, qnrS, sul1, sul2, tetA, tetB, cat1, and floR. These genes were associated with resistance to various antibiotics such as ampicillin, cephalosporins, streptomycin, gentamicin, amikacin, fluoroquinolones, sulfamethoxazole, tetracycline, chloramphenicol, and florfenicol.

The study identified various antimicrobial resistance genes in E. coli isolates from Australian urine samples, including blaCTX-M-15, blaCTX-M-14, blaTEM-28, sul1, sul2, sul3, dfrA17, dfrA5, dfrA1, dfrB4, tetA, tetB, mphA, cmlA1, cmlA5, catB3, sat2, qnrD1, fosA7, aac(3)-IId, aac(3)-IIe, aph(3')-IIa, aph(6)-Id, ant(3'')-IIa, intI1, and intI2. These genes were associated with resistance to various antibiotics such as beta-lactams, sulfonamides, trimethoprim, tetracycline, macrolides, chloramphenicol, streptothricin, quinolones, fosfomycin, and aminoglycosides.

The study identifies several clinically important antibiotic resistance genes carried by IncF33 plasmids, including bla CTX-M-55, bla CTX-M-65, fosA3, rmtB, aph(3'')-Ib, aph(6)-Id, aph(3')-IIa, floR, oqxAB, tet(A), and sul2. These genes contribute to multidrug resistance in Enterobacterales, particularly in Escherichia coli, Salmonella, and Klebsiella pneumoniae.

The study identified several AMR genes in Clostridium neonatale, including erm(B), tet(O), tet(32), tet(M), bla TEM-116, bla CBP-1-like, and aph(3')-IIa, which confer resistance to clindamycin, tetracycline, cefotaxime, and gentamicin. These genes are associated with mobile genetic elements.

The study found no significant increase in clinically relevant antimicrobial resistance gene burden in critically ill children treated with SDD-enhanced infection control compared to standard care.

The study identified three bla CTX-M variants (bla CTX-M-15, bla CTX-M-55, and bla CTX-M-65) and a broad resistome in ESBL-producing E. coli strains isolated from non-human primates in the Peruvian Amazon.

The study identified 35 AMR genes and 30 chromosomal-mediated gene mutations in Salmonella strains from Bangkok canal water, highlighting the presence of multidrug-resistant strains with resistance to various antimicrobial classes.

The study identified 31 AMR genes in 97 Salmonella enterica isolates from poultry, including aac(3)-IId, aac(3)-IVa, aac(3)-VIa, aac(6′)-Ib4, ant(2′′)-Ia, grdA, aph(3′)-Ia, aph(3′)-IIa, aadA1, aadA2, aadA7, aadA13, aph(3′)-Ib, aph(6)-Ic, aph(6)-Id, aph(4)-Ia, blaCMY-2, blaCTX-M-1, blaHER-3, blaTEM-1, floR, tetA, tetB, tetC, dfrA12, sul1, sul2, fosA7, qnrB19, ble, and mcr-9.

The study identifies variations in antibiotic resistance and life-history traits among the mPact panel of Pseudomonas aeruginosa strains, highlighting the presence of specific AMR genes and mutations contributing to resistance against various antibiotics.

The study identified multiple AMR genes in E. coli isolates from poultry in Bangladesh, including genes conferring resistance to various antibiotics such as tetracycline, ciprofloxacin, azithromycin, colistin, and others. High levels of multidrug resistance were observed, with specific genes like mcr1.1, bla CTX-M-65, and tet(A) playing significant roles.

The study identifies distinct antimicrobial resistance (AMR) gene profiles in bovine and swine enterotoxigenic Escherichia coli (ETEC) isolates, highlighting differences in the prevalence of specific AMR genes and plasmid replicons between the two host species.

The paper discusses the emergence and global spread of extensively drug-resistant (XDR) Salmonella, highlighting the resistance mechanisms involving genes such as blaCTX-M-15, floR, cat1, cat2, strA, strB, aacC(3), aadA, ant(3")-Ia, aph(3)-IIa, tet(A), tet(B), tet(D), tet(G), tet(H), dfrA10, dhfrXII, sul1, sul2, sul3, mphA, and ermB.

Five Salmonella Enteritidis isolates were analyzed, revealing multiple antimicrobial resistance genes and chromosomal mutations. Key resistance genes included bla CTX−M−55, bla TEM−141, bla TEM−1B, aac(6')-Iaa, aph(3’)-IIa, aph(3’’)-Ib, aph(6)-Id, tet(A), floR, fosA3, and sul2. Chromosomal mutations in gyrA (D87G/D87Y) and acrB (F28L/L40P) were also identified, contributing to fluoroquinolone and multidrug resistance.

The study identified several antimicrobial resistance genes and mutations in Salmonella serovar Potsdam isolated from duck embryos, including aac(3')-Ia, aac(4')-IIa, aph(3')-IIa, aph(3')'-Ib, aph(6')-Id, blaTEM-116, blaTEM-1B, and tet(A), as well as gyrA and parC mutations associated with quinolone resistance.

This review highlights the pathogenesis, virulence factors, and antibiotic resistance genes of Riemerella anatipestifer, emphasizing its significance in poultry farming and the need for further research on its resistance mechanisms.

The study identifies multiple extended-spectrum β-lactamase (ESBL) genes, including bla CTX-M, bla TEM, bla OXA, bla LAP, and bla CMY, as well as other antibiotic resistance genes such as mcr-1, mcr-1.1, tet(X4), aadA1, aadA2, aph(6)-Id, aph(3")-Ib, aph(3')-Ia, aph(3')-IIa, aac(3)-IVa, aph(4)-Ia, tet(A), tet(M), sul2, sul3, dfrA14, qnrS1, arr-2, fosA3, cmlA5, floR, mph(A), and lnu(F) in ESBL-producing E. coli isolates from pigeons in China.

The study identified several AMR genes in Salmonella enterica isolates from Inner Mongolia, including bla TEM-1, cmlA, tetA, tetB, tetM, aadA2, aph(3')-IIa, aacC4, aac(3)-IIa, sul1, sul3, oqxA, and oqxB, which confer resistance to beta-lactams, chloramphenicol, tetracyclines, aminoglycosides, sulfonamides, and quinolones.

The study identified blaNDM-13-producing E. coli strains in a chicken farm in Jiangsu Province, China, which exhibit multidrug resistance, including resistance to carbapenems, aminoglycosides, fluoroquinolones, tetracyclines, sulfonamides, and florfenicol. The study also characterizes the plasmids carrying blaNDM-13 and confirms their ability to transfer between bacteria.