The study identifies AcrAB-TolC as a critical efflux system responsible for multidrug resistance in Salmonella enterica serovar Typhimurium DT104, along with the roles of floR and tet(G) in resistance to chloramphenicol-florfenicol and tetracyclines, respectively.

The study identified several AMR genes and mutations in Salmonella isolates causing traveler's diarrhea, including blaTEM, blaOXA-1, tetA, tetB, tetG, dfrA1, dfrA12, dfrA14, dfrA17, floR, cmlA, and a mutation in the gyrA gene. These genes and mutations contribute to resistance against ampicillin, tetracycline, trimethoprim, chloramphenicol, and quinolones.

The study developed and validated real-time PCR assays to quantify ten major classes of tetracycline resistance genes (tet) in microbiome samples, revealing significant differences in tet gene abundance between bovine and swine manures, with swine manures showing higher levels. Composting significantly reduced tet gene abundance.

The study identifies multiple AMR genes associated with multidrug-resistant Salmonella enterica serovar Typhimurium phage types DT104, DT102, and U302, including pse, floR, str, sulI, tetG, and spvC.

The study identified multiple antimicrobial resistance genes in Salmonella enterica subsp. enterica serovar Typhimurium isolates from piglets with diarrhea in Korea, including bla PSE, bla TEM, cat1, cat2, floR, strA, strB, aadA, sulI, sulII, tetA, tetC, and tetG.

The study identifies and characterizes several AMR genes within the Salmonella genomic island 1 (SGI1), including aadA2, blaPSE-1, floR, qacEΔ1sulΔ1, qacEΔ1sul1, and tet(G). These genes confer resistance to various antibiotics such as streptomycin, spectinomycin, ampicillin, chloramphenicol, florfenicol, sulfonamides, and tetracycline.

The study presents a microarray-based serogenotyping assay for Salmonella, demonstrating high correlation between genotypic and phenotypic characteristics. Several AMR genes were identified and validated, showing strong association with AMR phenotypes.

The study developed a DNA microarray for genotyping antibiotic resistance determinants in Acinetobacter baumannii clinical isolates, identifying numerous resistance genes and mutations associated with carbapenem, aminoglycoside, fluoroquinolone, and other antibiotic resistances.

The study identifies several tetracycline resistance genes (tetA, tetC, and tetG) in activated sludge exposed to tetracycline, highlighting their increased abundance and diversity under tetracycline stress. It also reveals the presence of novel tetracycline-resistant bacteria genera.

The study identified several antibiotic resistance genes including sul1, tet(A), strA, aadA, cat, tet(G), and sul2 in the microbiota of ornamental fish carriage water. These genes were found to be prevalent and associated with various bacterial families.

The study reports the draft genome sequence of MDR Pseudomonas aeruginosa strain VRFPA09, identifying several AMR genes including blaVeb-1, blaOXA-10, aadA1, aph(3')Iib, Sul1, CatB7, TetG, dfrB5, and fosA, which contribute to resistance against various antibiotics.

The study identified tet(G) in Pseudomonas sp. and tet(W) in Bacillus sp. as tetracycline resistance genes, highlighting their persistence in anaerobic digesters and the impact of raw sludge on antibiotic resistance gene content.

The study identified 65 unique resistance genes in nontyphoidal Salmonella, including bla CTX-M1 and bla SHV2a, which were first reported in retail meat isolates in the United States. The research highlights the effectiveness of whole-genome sequencing in detecting antimicrobial resistance genes and correlating them with phenotypic resistance.

The study evaluated the efficacy of peracetic acid (PAA) in reducing antibiotic resistance genes (ARGs) and indicator organisms in simulated combined sewer overflow (CSO) effluent. It identified that PAA effectively reduced the concentrations of sul 1, tet (G), and BacHum in viable cells, with varying degrees of effectiveness depending on the PAA dosage and contact time.

The study identified antibiotic resistance genes (ARGs) such as qnrA, sulI, sulII, tetG, tetM, tetO, and intI1 in liquid manure from swine feedlots and their effects on nearby groundwater. These genes were found to be associated with fluoroquinolone, sulfonamide, and tetracycline resistance.

The study identified several AMR genes in Pseudomonas aeruginosa strains from different geographic locations, including beta-lactamases, aminoglycoside resistance genes, fosfomycin resistance, chloramphenicol resistance, sulfonamide resistance, quaternary ammonium compound resistance, tetracycline resistance, and others. Indian eye isolates exhibited a higher diversity of resistance genes compared to Australian isolates.

The study identified several antimicrobial resistance genes in Salmonella enterica subsp. enterica serovar Typhimurium monophasic variants, including blaTEM, aadA, strA, strB, tet(A), tet(B), tet(G), sul1, sul2, sul3, and floR, which confer resistance to ampicillin, streptomycin, oxytetracycline, sulfisoxazole, and chloramphenicol.

The study identified various AMR genes and mutations in carbapenem-resistant Klebsiella pneumoniae isolates, including bla KPC-2, bla KPC-3, bla NDM-1, bla OXA-48, ampC, qnrB, qnrS, aac(6')-Ib-cr, armA, rmtB, tet(A), tet(B), tet(D), tet(G), sul1, sul2, sul3, dfrA1, dfrA12, dfrA14, dfrA25, dfrA26, dfrA30, oqxA, oqxB, and mgrB, as well as mutations in ompK35, ompK36, gyrA, parC, phoP, phoQ, pmrA, and pmrB, which contribute to resistance against multiple antibiotics.

The study identifies the tet(G) gene as a mediator of chlortetracycline resistance in multidrug-resistant Salmonella enterica serovar Typhimurium DT104, demonstrating its role in enhancing tonsil colonization and fecal shedding.

The study identifies two tetracycline resistance genes, tetR and tetG, in Pandoraea sp. XY-2, suggesting its capability to biodegrade tetracycline.

The study found that oral administration of florfenicol increased the abundance and diversity of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in the gut of Piaractus mesopotamicus. Several ARGs, including floR, mexQ, macB, and others, were identified as being associated with multidrug resistance and efflux pump mechanisms.

The study identified various AMR genes and mutations in Salmonella enterica serovar Typhimurium, including aadA, strAB, blaTEM, blaCARB, floR, cmlA1, catA1, qnrB19, sul1, sul2, sul3, dfrA1, dfrA12, dfrA14, tetA, tetB, tetC, tetG, and mutations in gyrA. These genes and mutations were validated through whole genome sequencing and phenotypic ASTs.

The study identified multiple AMR genes in extensively drug-resistant Klebsiella pneumoniae isolates, including beta-lactamases (blaSHV-11, blaTEM-1B, blaVEB-1, blaOXA-10, blaKPC-2, blaOXA-9, blaVIM-27, blaCTX-M-15, blaOXA-1, blaOXA-48), aminoglycoside resistance genes (aadA1, ant(2'')-Ia, aph(6)-Id, arr-2, aadA24, aph(3')-Ia, aph(6)-Id, aac(3)-IIa, aac(6')Ib-cr, aac(6')-Ib, aac(6')-Ib-cr), sulfonamide resistance genes (sul1, sul2), tetracycline resistance genes (tet(A), tet(G)), trimethoprim resistance genes (dfrA1, dfrA14, dfrA23), chloramphenicol resistance genes (cmlA1, catB4), and others.

The study identifies various AMR genes in GC1 Group 1 and Outgroup Group 3 genomes, including aac(6')-Ib, aph(3')-Ia, aac(3)-IIa, sul1, sul2, tet(A), tet(G), catA1, intI1, intI2, and efflux pumps adeABC, adeIJK, and adeFGH. These genes contribute to multidrug resistance in Acinetobacter baumannii.

The study identified various antimicrobial resistance genes in E. coli isolates from wild boar in Tuscany, including blaCMY-2, sul1, sul2, tetG, aadA1, and strA-strB, indicating significant resistance to beta-lactams, sulfonamides, tetracyclines, and streptomycin.

The paper discusses the antibiotic resistance profiles and molecular mechanisms of Acinetobacter baumannii, highlighting the presence of various beta-lactamases such as blaOXA-23, blaOXA-51, blaOXA-24/40, blaOXA-58, blaOXA-143, blaOXA-235, blaIMP, blaVIM, and blaNDM, as well as aminoglycoside-modifying enzymes like aac(6')-Ib, aph(3')-Ia, and ant(2'')-Ia. It also identifies efflux pumps such as adeABC and tetracycline resistance genes like tet(A).

The study identified 55 different antimicrobial resistance determinants in diarrheal pathogens, highlighting the presence of genes conferring resistance to multiple antibiotic classes, including beta-lactams, aminoglycosides, macrolides, tetracyclines, phenicols, sulfonamides, and others. Notably, carbapenemase genes like bla OXA-48 and bla NDM were detected in certain isolates, indicating emerging resistance concerns.

The study identified several AMR genes and mutations in enterovirulent E. coli isolates from adult patients in Cameroon, including blaTEM, blaOxa, cat1, cat2, tetB, tetA, tetG, sul2, and dfrA12, along with mutations in gyrA and parC contributing to quinolone resistance.

The report highlights the prevalence of antimicrobial resistance in zoonotic and indicator bacteria, focusing on Salmonella, Campylobacter, and E. coli. It notes high resistance levels to ampicillin, sulfonamides, and tetracyclines in Salmonella and E. coli isolates, along with rising resistance to fluoroquinolones in certain serovars. Carbapenemase-producing E. coli and Salmonella were rarely detected.

The study identified 60 antimicrobial resistance genes (ARGs), 4 disinfectant resistance genes (DRGs), and 33 heavy metal resistance genes (HMRGs) in 450 Salmonella strains isolated from diseased animals. These genes contributed to resistance against multiple antimicrobial classes, including aminoglycosides, beta-lactams, tetracyclines, sulfonamides, and phenicols.

The study identifies ermF, intI1, and mphA as genes that show positive selection under specific antibiotic concentrations, highlighting their role in antibiotic resistance development at low concentrations.

The study found that pyrolysis of biowastes effectively reduced the abundance of antibiotic resistance genes (ARGs) such as tetracycline resistance genes (tetC, tetG, tetM, tetO, tetW), sulfonamide resistance genes (sul1, sul2), and class 1 integron-integrase gene (intI1) in swine manure and sewage sludge.

This study identified various antibiotic resistance genes (ARGs) in sewer biofilms, including sul1, blaTEM, tet(G), tet(O), tet(W), and ermF, which were detected in field and simulated sewer biofilm samples. The research also explored the effects of disinfection protocols on biofilm persistence.

The study identifies the presence of the blaCARB-2 gene along with other resistance genes such as aac(6')-Iaa, aadA2b, sul1, tetG, floR, and qacEΔ1 in multidrug-resistant Salmonella Typhimurium ST19 strains.

The study identified multiple AMR genes in a multidrug-resistant Klebsiella pneumoniae isolate from a Red Kangaroo, including beta-lactamases (bla DHA–3, bla SHV–1, bla CTX–M–14, bla TEM–191, bla TEM–1, bla CTX–M–3), aminoglycoside resistance genes (aph(3″)-Ib, aph(6)-Id, aac(3)-IIa, aac(6′)-Ib-cr, aadA16, arr-3), quinolone resistance genes (qnrS1, qnrB2), macrolide resistance gene (mphA), sulfonamide resistance genes (sul3, sul1), dihydrofolate reductase (dfrA3, dfrA27), chloramphenicol resistance gene (floR), tetracycline resistance genes (tetG, tetR), and multidrug efflux pump (qacEΔ1).

The study identified various AMR genes in ESBL-producing E. coli from wild birds and cattle in Nigeria, including bla CTX-M1/15, bla CTX-M9, strB, sul2, tetA, and others. These genes were associated with resistance to multiple antibiotics, highlighting the potential for inter-species transmission of AMR bacteria.

The study identified various carbapenemase genes (blaNDM-1, blaNDM-5, blaVIM-1, blaVIM-6, blaOXA-23, blaOXA-58, blaOXA-66, blaOXA-69, blaOXA-91, blaOXA-181, blaOXA-50) and other resistance genes (such as armA, rmtC, rmtF, aac(3)-I, aadA1, aph(3')-Ia, aph(3')-VI, aph(3')-Via, aph(6')-Id, mphE, msrE, mphA, ereA, dfrA1, dfrA12, dfrA14, dfrA17, dfrA20, sul1, sul2, tetB, tetD, tetG, tet39, qnrVC1, qnrS1, qnrB4, floR, catA1, catA2, catB3, catB7, cmlA1, cmlA5, arr-3, arr-2, sat2, acrF, mdtM, emrD, mexA, mexE, mexX, kdeA, oxa-10, oxa-395, oxa-396, oxa-846, adc-25, dha-1, act-16, cmY, ctx-m-15, shv-67, tem-1b) in carbapenem non-susceptible clinical isolates of gram-negative bacteria in Kenya, highlighting the diversity and prevalence of multidrug resistance.

Three antibiotic resistance genes (sul 1, bla TEM, and tet (G)) were actively transcribed in sewer systems, indicating their potential role in antibiotic resistance. These genes were detected in sewer sediment samples, suggesting their involvement in the spread of resistance in environmental settings.

Ursolic acid reduced the expression of tetracycline resistance genes in the gut microbiota of antibiotic-exposed mice.

Ursolic acid reduced the expression of tetracycline resistance genes in the gut microbiota of antibiotic-exposed mice.

The study identified multiple antimicrobial resistance genes in Delftia tsuruhatensis TR1180, including blaOXA-118, oqxB, dfrA16, aac(6')-Ib3, aadA2, sul1, floR, and tet(G), which correspond to the strain's resistance to beta-lactams, fluoroquinolones, sulfonamides, aminoglycosides, and tetracyclines.

The study identified multiple tetracycline resistance genes (tet(A), tet(B), tet(C), tet(D), tet(E), and tet(G)) in Salmonella spp. strains isolated from animals and food, highlighting the prevalence of these genes and their potential role in the spread of antibiotic resistance.

The study identified several antibiotic resistance genes in Salmonella enteritidis, including sul2, sul3, blaTEM-1-like, tet(A), and tet(G). These genes contribute to resistance against sulfamethoxazole, ampicillin, cefoxitin, cefotaxime, cefoperazone, ceftriaxone, cefepime, and tetracycline.

The study identified streptomycin and tetracycline resistance-conferring genes in South African Salmonella enterica lineages, highlighting the presence of antimicrobial resistance in animal and animal product isolates.

The study identified multiple antibiotic resistance genes in clinical Pseudomonas aeruginosa isolates, including blaVIM-2, blaOXA-396, blaOXA-488, floR, tetG, sul1, dfrA5, dfrB2, dfrB5, aph(3)-Ib, blaPAO, catB7, and fosA, which confer resistance to various antibiotics such as beta-lactams, chloramphenicol, tetracycline, sulfonamides, trimethoprim, aminoglycosides, and fosfomycin.

The study examined the impact of antibiotic therapies on the dynamics and composition of resistance genes in the animal gut microbiota, identifying several AMR genes such as blaTEM, tetA, strA, strB, intI1, tetM, mel, floR, mcr-2, oqx B, tetC, tetG, tetO, tetW, tetX, ermB, ermF, sul1, sul2, and others, which were experimentally validated in Escherichia coli.

The study presents the MALDI Tet(X)-plus test, a rapid and reliable method for detecting Tet(X)-producers, non-Tet(X)-producing tetracycline-resistant, and tetracycline-susceptible Gram-negative bacteria. It identifies various tetracycline resistance genes such as tet(A), tet(B), tet(D), tet(G), tet(M), tet(X3), tet(X4), tet(X2)-tet(X6), tet(X3)-tet(X6), and TMexCD1-TOprJ1.

The study identified GES-5-producing ST235 and VIM-2-producing ST233 sub-lineages of Pseudomonas aeruginosa in Saudi Arabia, highlighting their global dissemination and the presence of various resistance genes including blaGES-5, blaVIM-2, and others.

The study identifies multiple antimicrobial resistance genes in Delftia tsuruhatensis, including aminoglycoside, sulfonamide, trimethoprim, tetracycline, and phenicol resistance genes, indicating the potential for multidrug resistance in this species.

The study identified several tetracycline resistance genes (tetA, tetG), a cadmium resistance gene (czcA), and a mobile genetic element (intI1) that were significantly enriched under co-exposure to cadmium and doxycycline in ditch wetlands.

The study identified multiple AMR genes and mutations in P. aeruginosa isolates from Kenya, including carbapenemases (blaNDM-1, blaVIM-6), fluoroquinolone resistance genes (qnrVC1, crpP), aminoglycoside resistance genes (aac(3)-IId, aph(3')-Ib, ant(3'')-Ia), tetracycline resistance genes (tetA, tetG), phenicol resistance genes (floR, cmlA), sulfonamide resistance gene (sul), trimethoprim resistance gene (dfrB), glycopeptide resistance gene (ble), and macrolide resistance gene (EreA). Additionally, mutations in gyrA and parC were associated with fluoroquinolone resistance.

The study identified multiple antimicrobial resistance genes in Salmonella enterica isolates from a mixed-use watershed in Georgia, USA, including bla CMY-2, aadA2, strA, strB, sul1, sul2, tetA, tetC, floR, and dfrA12, which conferred resistance to various antibiotics such as ceftiofur, ceftriaxone, streptomycin, sulfisoxazole, tetracycline, chloramphenicol, and trimethoprim.

The study identifies several AMR genes and mutations associated with resistance to various antibiotics in wastewater environments, highlighting the role of these genes in the spread of antimicrobial resistance.

The study identified multiple antimicrobial resistance genes in Listeria monocytogenes isolates from milk and milk products, including beta-lactamase genes (bla TEM, bla SHV, bla Z), tetracycline resistance genes (tet A, tet D, tet G, tet K, tet M), sulfonamide resistance genes (sul 1, sul 2), and an aminoglycoside resistance gene (aph (3)-IIa (aphA2)).

The study identified several AMR genes in Pseudomonas aeruginosa strains isolated from equine and other veterinary samples, including beta-lactamases, aminoglycoside modifying enzymes, quinolone resistance genes, sulfonamide resistance genes, phenicol resistance genes, tetracycline resistance genes, and efflux pumps. Additionally, genes conferring resistance to quaternary ammonium compounds were detected.

The study identifies various tetracycline resistance genes (tetC, tetE, tetG, tetM, tetO, tetQ, tetW, tetX), sulfonamide resistance gene (sulI), aminoglycoside resistance genes (ant(2')-Ia, ant(3')-Ia, aph(6')-Id, aph(33')-Ib, aac(6')-Ib), beta-lactam resistance genes (blaGES, blaVEB), chloramphenicol resistance gene (catB3), MLS resistance genes (ereA, ermB), and multidrug resistance genes (acrB, mexB, mexF) in municipal sewage treatment plants, highlighting their association with mobile genetic elements and microbial communities.

The study identified multiple AMR genes and efflux pump systems in P. aeruginosa persister isolates, highlighting their multidrug-resistant phenotype and biofilm-forming capabilities.

The study identified blaOXA-23 and blaNDM-1 as the most common carbapenem resistance genes in Acinetobacter baumannii isolates from Nigerian hospitals, along with several other AMR genes and mutations contributing to multidrug resistance.

The study identified multiple antimicrobial resistance genes in invasive Salmonella enterica isolates from children with bacteremia in north-central Nigeria, including bla TEM, flo R, qnr A, tet A, tet B, and tet G. These genes conferred resistance to various antibiotics such as ampicillin, trimethoprim-sulfamethoxazole, chloramphenicol, tetracycline, and ciprofloxacin.

The study identified multidrug-resistant non-typhoidal Salmonella in migratory birds in Bangladesh, highlighting the presence of various AMR genes such as blaCARB-2, floR, sul1, tet(G), dfrA1, and mutations in gyrA and parC associated with quinolone resistance.

The study identified several AMR genes, including blaCTX-M-2, blaKPC-2, and tetG, in P. aeruginosa isolates from Brazil. These genes conferred resistance to various beta-lactam and tetracycline antibiotics.

The study identifies multiple acquired antibiotic resistance genes in the Pseudomonas fluorescens strain GXZC, including those conferring resistance to aminoglycosides, tetracyclines, and sulfonamides. The strain exhibits multidrug resistance and poses a risk in boar semen preservation.

The study identifies bla NDM-1-positive carbapenem-resistant Pseudomonas aeruginosa isolates belonging to the international high-risk clone ST773 in the Gauteng region, South Africa. These isolates harbor various antibiotic resistance genes, including bla NDM-1, aad A11, qnr VC1, flo R2/cml A9, rmt B4, tet G, bla OXA-906, and bla PDC-19b, contributing to their extensive drug resistance.

The study identifies several antibiotic resistance genes (ARGs) in greywater and filter bed samples, including blaTEM, sul1, intI1, tetG, tetW, and others, indicating the presence of resistance to beta-lactams, sulfonamides, tetracyclines, and other antibiotics. The research highlights the variability in ARG removal efficiency by constructed wetlands and the potential for ARG proliferation in treated greywater.

Four Acinetobacter lwoffii strains were isolated from the milk of cows with subclinical mastitis in China. These strains exhibited multidrug resistance and carried 17 resistance genes, including beta-lactamase, aminoglycoside-modifying, fluoroquinolone, tetracycline, sulfonamide, and chloramphenicol resistance genes.

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.

The study identifies the first detection of high-level aminoglycoside-resistant Klebsiella pneumoniae and Enterobacter cloacae isolates in Uruguay, carrying 16S rRNA methyltransferases (rmtB, rmtC, rmtD) along with carbapenemase genes (bla NDM-5, bla NDM-1).

The study identifies specific tetracycline resistance mechanisms (efflux pumps, ribosomal protection proteins, and type 1 tetracycline destructases) that are preferentially selected by different generations of tetracycline antibiotics, highlighting the evolutionary dynamics of resistance.

The study identified several AMR genes in Morganella clinical isolates, including tet(B), sul1, catA2, sul2, floR, aadA1, and others, contributing to resistance against various antibiotics.

The study identified acquired antimicrobial resistance genes in B. cenocepacia isolates from a bacteraemia outbreak, including aphA6, blaNDM-1, blaPME-1, sul1, and tetG, which conferred resistance to aminoglycosides, carbapenems, sulfonamides, and tetracyclines. No acquired AMR genes were found in the STNF outbreak isolates.

The study identifies a wide range of antibiotic resistance genes in the Enterobacter hormaechei complex, highlighting its multidrug-resistant nature and the role of mobile genetic elements in the dissemination of resistance.

The study identified several AMR genes and mutations in colistin-resistant P. aeruginosa isolates, including blaNDM-1, blaOXA-1028, blaOXA-904, and mutations in phoQ and basR genes associated with colistin resistance.

The study identified several AMR genes and mutations in colistin-resistant P. aeruginosa isolates, including blaNDM-1, blaOXA-1028, blaOXA-904, and mutations in phoQ and basR genes associated with colistin resistance.

The paper discusses the multidrug resistance mechanisms of Pseudomonas aeruginosa, including beta-lactamases, aminoglycoside modifying enzymes, efflux pumps, and mutations in porin genes. It highlights the role of these mechanisms in antibiotic resistance and the challenges they pose in treating infections.

Bacteriovorax sp. As-1 exhibits resistance to multiple antibiotics, primarily due to mutations in the gyrA gene, specifically S90Y and G94R, which are associated with reduced fluoroquinolone susceptibility.

The study identified 15 AMR genes significantly more frequent in high-risk P. aeruginosa clones, including aminoglycoside, beta-lactam, phenicol, fluoroquinolone, trimethoprim, sulfonamide, and tetracycline resistance genes. These genes are often associated with mobile genetic elements, indicating a mobility-linked resistome in high-risk clones.

The study identifies various AMR genes and mutations in Klebsiella pneumoniae, highlighting knowledge gaps in existing annotation tools and databases for accurate resistance prediction.

The study identified a high prevalence of trimethoprim resistance genes (dfrA1, dfrA15, dfrA31) and other resistance genes such as floR, strA, strB, varG, blaCARB-2, aadA1, aadA2, sul1, sul2, catB9, tet(C), tet(G), tet(59), qacEdelta, and blaCMY-4 in Vibrio cholerae isolates from Africa. Fluoroquinolone resistance mutations (gyrA_S83I and parC_S85L) and nitrofuran resistance mutations (nfsA_R169C and nfsB_Q5*) were also prevalent.

The study identifies multiple antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in hospital wastewaters across Lebanon, highlighting the prevalence of resistance to beta-lactams, aminoglycosides, tetracyclines, sulfonamides, and glycopeptides.