The study identifies high-level fluoroquinolone-resistant Salmonella enterica serovar Typhimurium isolates with mutations in gyrA (S83F, D87N/G) and parC (S80R), along with resistance genes blaOXA-30, aadA1, dhfr12, aadA2, aac3, catA, and tetRA.

The study identified the presence of tetB, catA, and blaTEM genes in Shigella isolates, which confer resistance to tetracycline, chloramphenicol, and ampicillin, respectively. These genes were detected through PCR analysis in a significant proportion of the isolates.

The study identifies distinct antibiotic resistance gene profiles in Staphylococcus aureus ST59 isolates from the USA and East Asia, with the East Asia clade exhibiting higher resistance to beta-lactams, chloramphenicol, tetracyclines, and macrolides.

The study identifies specific outer membrane protein patterns associated with antibiotic resistance in Edwardsiella tarda, highlighting the role of plasmid-encoded genes such as tetA, tetR, and catA in mediating resistance to tetracycline and chloramphenicol.

The study identified multiple antimicrobial resistance genes in 11 multidrug-resistant Klebsiella pneumoniae isolates, including ESBL genes (blaCTX-M-15, blaSHV-12, blaTEM-1B), fluoroquinolone resistance genes (oqxAB, qnrB), and others such as catA, catB, tet, sul, dfr, and fosA. These genes contribute to resistance against various antibiotics, highlighting the complex resistance profile of these isolates.

The study identified various AMR genes in Salmonella enterica isolates from equine patients, including beta-lactamases, aminoglycoside modifying enzymes, and genes conferring resistance to tetracyclines, macrolides, and other antibiotics.

The study identified 123 distinct antibiotic resistance genes (ARGs) in the genus Serratia, including intrinsic and acquired resistance genes, as well as efflux pump-related genes. Key findings include the detection of various beta-lactamases, aminoglycoside resistance genes, quinolone resistance genes, and efflux pumps. Notably, the study highlights the presence of plasmid-borne ARGs in nosocomial strains and the role of efflux pumps in multidrug resistance.

The study identified multiple ESBL genes, including bla CTX-M-15, several bla SHV, bla TEM-63, and bla OXA-10, along with other AMR genes across diverse lineages of K. pneumoniae isolates from Malawi. No carbapenem resistance genes were detected, but plasmids similar to carbapenem resistance-associated plasmid pNDM-mar were found.

The study identified genes under positive selection in Pseudomonas aeruginosa outlier strains, including oprD, which is implicated in carbapenem resistance through reduced uptake.

The study identifies an extensively drug-resistant (XDR) sublineage II.1 of Salmonella Typhimurium ST313 in the Democratic Republic of the Congo, carrying resistance genes such as catA, blaTEM1, dfrA, blaSHV-2A, mphA, qnrS, and gyrA mutations, along with an IncHI2 plasmid pSTm-ST313-II.1.

The study characterizes the first mecA-positive multidrug-resistant Staphylococcus pseudintermedius isolate from an Argentinean patient, identifying several AMR genes and mutations associated with resistance to multiple antibiotics.

The study characterizes a novel mobilizable genomic island, GEI-D18A, in the multidrug-resistant strain Rheinheimera sp. D18, which carries several antibiotic resistance genes including aadA1, aacA3, tet(B), catA, dfrA37, and three sul1 genes. The transferability of GEI-D18A was confirmed through mating experiments, demonstrating its role in the conjugational transfer of antibiotic resistance genes.

The study identified various AMR genes in cefotaxime-resistant E. coli isolates from cattle and sheep in the Basque Country, including bla CTX-M-14, bla CMY-2, and others, highlighting the prevalence of ESBL and AmpC-producing strains.

The study identified multiple antimicrobial resistance genes in bacterial isolates from chronic non-healing wounds, including beta-lactamases, aminoglycoside modifying enzymes, macrolide resistance genes, and others. These genes were found in various bacterial species such as E. coli, S. aureus, P. aeruginosa, and others.

The study characterizes various AMR genes in plasmids from meat-derived E. coli isolates, highlighting the diversity and clustering of resistance genes such as bla CTX-M-1, aadA5, sul2, and others, along with their association with specific plasmid incompatibility groups.

The study identifies carbapenem-resistant Klebsiella pneumoniae sequence type 16 causing multiple outbreaks in a hospital in Vietnam. Key AMR genes include blaOXA-181, blaOXA-48, and mutations in gyrA and parC contributing to fluoroquinolone resistance. Colistin resistance was due to disruption of the mgrB gene by an IS L3-like element.

The study characterizes several AMR genes and mutations in IncFIB-4.1 and IncFIB-4.2 plasmids, highlighting their role in conferring resistance to various antibiotics.

The study identified ESBL/AmpC-producing E. coli on a dairy farm, with a high prevalence in calves. Key resistance genes included blaCTX-M-1, blaCTX-M-15, floR, strA, strB, catA, aadA, dfrA, tetA, tetR, tetY, mph(A), and TEM-105.

The study found that organic and alternative pig farming practices are associated with reduced antimicrobial resistance (AMR) in non-aureus staphylococci (NAS) compared to conventional farming. Specific AMR genes such as mecA, blaZ, blaPC1, and others were more prevalent in conventional farms, while organic farms showed lower levels of AMR genes for aminoglycosides, phenicols, and tetracyclines.

The study identifies various AMR genes including blaZ, dfrA, dfrG, ermB, catA, aac6′-aph2″, tet(M), dfrK, and ant4′ in Staphylococcus aureus and Staphylococcus pseudintermedius isolates. Additionally, a mutation in grlA (S80F) was found to confer fluoroquinolone resistance.

The study identified tet(M) and erm(B) as the most common antibiotic-resistant genes in Enterococcus faecalis isolates from South African hospitals, along with other resistance genes such as dfrG, catA, and optrA.

The study identified various antimicrobial resistance genes and mutations in Staphylococcus pseudintermedius isolates from dogs in Argentina and the United States, highlighting differences in resistance profiles between the two regions.

The study identified a multidrug-resistant E. faecalis isolate (ESC1) carrying a novel composite transposon with two aac(6')-aph(2") genes, along with several other resistance genes on plasmids, contributing to resistance against multiple antibiotics.

The study identified several AMR genes and mutations in extraintestinal E. coli populations from broilers treated with enrofloxacin. Key findings include the presence of qnrB19 and qnrS1 genes, which confer fluoroquinolone resistance, and mutations in gyrA, parC, and parE genes associated with fluoroquinolone resistance. Additionally, multiple other AMR genes were detected, indicating multidrug resistance.

The study identified 22 different resistance genes and gene variants, including erm(B), aph(3')-IIIa, aadE, catA, lnu(C), blaOXA, sat4, tet(O), and point mutations in gyrA, 23S rRNA, and rpsL, associated with antimicrobial resistance in thermotolerant Campylobacter spp.

The study identifies multiple AMR genes and mutations in multidrug-resistant E. coli strains causing infections in dogs and cats, including bla CTX-M-14, bla CTX-M-15, bla CTX-M-27, bla CTX-M-55, bla CMY-2, bla CMY-148, aac(6')-Ib-cr, qnrS1, qnrB6, aadA2, aadA5, aadA16, ant(3′′)-Ia, aph(3′)-Ia, aph(3′′)-Ib, aph(6)-Id, rmtB, floR, cmlA, catA, sul1, sul2, sul3, dfrA12, dfrA14, dfr17, dfrA27, tet(A), tet(B), tet(M), mph(A), erm(B), lnu(F), and arr-3, as well as the gyrA:p.S83L mutation.

The study identifies catA and cmlA as the primary genes responsible for chloramphenicol resistance in E. coli and Salmonella isolates from Thailand, highlighting their persistence through co-selection and horizontal gene transfer.

The study identified multiple antimicrobial resistance genes in pan-drug resistant Proteus mirabilis isolates, including genes conferring resistance to aminoglycosides, beta-lactams, tetracyclines, sulfonamides, and others. These genes were found on the chromosome and contributed to the isolates' resistance to various antibiotic classes.

The study demonstrates the successful detection of various antimicrobial resistance genes, including blaCTX-M-15, blaCTX-M-2, blaTEM-1, blaSHV, catA, tet(J), blaOXA-356, fosB, and mepA, using nanopore sequencing in spiked urine samples.

The study identifies multiple multidrug-resistant genes in Providencia pseudovermicola sp. nov., including bla CTX-M-14, bla CMY-6, bla NDM-1, qnrD1, aadA, armA, msrE, mphE, lnuF, rmtC, aac(6')-Ib10, sul1, aph(3')-Ia, qacEΔ1, and dfrA1, highlighting the significance of these genes in conferring resistance to various antibiotics.

Four raw beef isolates harbored at least one gene conferring resistance to beta-lactam (blaTEM-1), chloramphenicol (catA), fosfomycin (fosA7), quinolone (qnrD1), or tetracycline (tet(A)).

The study identified several AMR genes in Salmonella isolates from livestock and their environment in Thailand, including aadA1, aadA2, aadB, aac(6')-Ia, blaTEM, tetA, tetB, catA, catB, cmlA, sulI, and dfrA1, which confer resistance to various antibiotics such as aminoglycosides, beta-lactams, tetracyclines, chloramphenicol, sulfamethoxazole, and trimethoprim.

The study identifies various AMR genes and mutations in Pseudomonas paraeruginosa, including carbapenemases like blaVIM-2, blaVIM-6, blaVIM-28, and blaKPC-2, as well as efflux pump genes (mexAB-oprM, mexCD-oprJ, etc.), and mutations in oprD, mexS, mexR, mexZ, lasR, mvfR, and vqsM that contribute to antibiotic resistance.

The study identified multiple AMR genes in Clostridium perfringens isolates from Egyptian broiler farms, including aminoglycoside, beta-lactam, macrolide, quinolone, sulfonamide, tetracycline, and trimethoprim resistance genes. High prevalence of multidrug-resistant strains was observed.

The study identified multiple AMR genes in Clostridium perfringens isolates from Egyptian broiler farms, including aminoglycoside, beta-lactam, macrolide, quinolone, sulfonamide, tetracycline, and trimethoprim resistance genes. High prevalence of multidrug-resistant strains was observed.

The study characterizes saCAT1, a type-A chloramphenicol acetyltransferase from Staphylococcus aureus, which confers resistance to chloramphenicol through enzymatic inactivation. The structural and biochemical analysis reveals the molecular basis of its catalytic activity and substrate specificity.

Arsenic and microplastics significantly influenced the spread of antibiotic resistance genes (ARGs) during vermicomposting, with specific genes like bla ampC, bla LRA-1, bla FEZ-1, aph(3′)-II, ermB, vanY, mefA, catA, tetX4, bla IMP-11, aadK, ant(3′)-Ih-aac(6′)-Id, ermG, bla OXA-119, tetR, vatE, smeE, mexD, bla OXA-3, amrB, tetY, class A beta-lactamase, dfrA1, alanine adenosyltransferase JOHN-1, mdtB, mdtE, and erm-41 being enriched under various treatment conditions.

The study identified multiple antibiotic resistance genes in lactic acid bacteria (LAB) from livestock environments, including van(T), erm(B), cat(A), tet(W), lsa(D), arr, van(Y), and qac(G). These genes conferred resistance to various antibiotics, highlighting the potential for horizontal gene transfer and the importance of monitoring LAB for AMR.