The study characterizes various methicillin-resistant Staphylococcus aureus (MRSA) clones, highlighting their antimicrobial resistance and virulence-associated markers, with a focus on SCC mec types and PVL status.

The study identified various tetracycline resistance genes, including tet(M), tet(L), erm(T), tet(W), tet(O), and tet(X), in the gut microbiota of a mother and her infant. It also discovered a novel composite transposon, Tn 6079, carrying tet(M), tet(L), and erm(T) in the infant's gut, highlighting the potential for horizontal gene transfer and maternal transmission of antibiotic resistance.

This paper characterizes several beta-lactamases, including TEM-1, SHV-1, CTX-M-15, and NDM-1, which confer resistance to various beta-lactam antibiotics. It also identifies erm(B) and mef(A) as mechanisms of macrolide, lincosamide, and streptogramin B resistance. Additionally, aadA1 and aac(6')-Ib are noted for aminoglycoside resistance, while catA1 and floR contribute to chloramphenicol resistance. The vanA gene is associated with glycopeptide resistance, and mcr-1 is linked to polymyxin resistance.

The study identifies novel erm(T)-carrying multiresistance plasmids from porcine and human isolates of methicillin-resistant Staphylococcus aureus ST398, which also harbor cadmium and copper resistance determinants.

The study identified the presence of the MLS B resistance gene erm(T) and the cadmium resistance operon cadDX in MSSA ST398 isolates, highlighting their resistance mechanisms.

The study identifies the ermT gene as a significant contributor to erythromycin resistance in CC398 MSSA strains, distinguishing them from CC398 LA-MRSA strains.

The study identifies methicillin-sensitive Staphylococcus aureus clonal complex 398 (MSSA CC398) as a significant clone in an ICU setting in France, highlighting its resistance to erythromycin through the presence of the ermT gene.

The study identifies a novel 5.8 kb erythromycin resistance plasmid, pBHS24B, carrying the erm(T) gene, which confers erythromycin resistance in Bacillus sp. HS24 and Bacillus subtilis 168.

The study identified ermTR and ermT genes associated with macrolide resistance, and tetM gene associated with tetracycline resistance in serotype IV group B Streptococcus strains.

The study identifies that the inducible expression of both ermB and ermT genes confers high macrolide resistance in S. gallolyticus subsp. pasteurianus isolates from China.

The study identified the presence of macrolide resistance genes msr, erm(C), and erm(T) in Staphylococcus aureus isolates following mass drug administration with azithromycin, contributing to increased prevalence of macrolide-resistant strains.

The paper discusses the role of bacteria from animals as a reservoir of antimicrobial resistance genes, highlighting the presence of various AMR genes such as erm(B), tet(M), cfr, and others in different bacterial species, emphasizing their contribution to the spread of resistance.

The study identified several AMR genes and mutations in invasive group A streptococci, including ermT, ermB, ermTR, tetM, lsaC, mef, msrD, and mutations in ParC and GyrA that confer resistance to macrolides, tetracycline, and fluoroquinolones.

The study identified several AMR genes and mutations in non-aureus staphylococci from Canadian dairy herds, including blaZ, mecA, fexA, norA, sav1866, dha, mphC, msrA, tet38, tetK, tetL, tetM, folP, and mprF. Mutations in mprF and rpoC were associated with daptomycin resistance, while mutations in cls were not linked to resistance.

The study identifies a significant increase in macrolide resistance among Streptococcus agalactiae isolates causing invasive disease in non-pregnant adults in Portugal, primarily linked to the expansion of a specific capsular-transformed lineage (CC1) harboring resistance genes such as erm(B), erm(TR), erm(T), mef(E), tet(M), tet(O), and tet(L).

The study identified several AMR genes in GBS isolates from urine in Suzhou, including tetM, ermB, mefE, lnuB, and others, associated with resistance to tetracycline, erythromycin, clindamycin, and fluoroquinolones.

High levels of Bifidobacterium in early life are associated with reduced levels of antimicrobial resistance (AMR) in the gut microbiome. Specifically, the gene ermX, encoding a 23S rRNA methyltransferase, was found to be significantly enriched in high-Bifidobacterium samples and is associated with resistance to macrolides, lincosamides, and streptogramin B.

The study identifies the ermT gene as the primary mechanism of erythromycin resistance in spa type t571 strains of methicillin-susceptible Staphylococcus aureus.

The study reports a case of severe disseminated infection caused by methicillin-sensitive Staphylococcus aureus (MSSA) clonal complex 398, which exhibited resistance to penicillin, erythromycin, and clindamycin due to the presence of the blaZ and erm(T) genes.

The study characterizes the AMR genes and mutations in Streptococcus gallolyticus subsp. pasteurianus isolates from China, identifying erm(B), erm(A), erm(T), mef(A/E), tet(L), tet(O), and tet(M) as major contributors to erythromycin, clindamycin, and tetracycline resistance.

The study found that manure application increased the occurrence of antibiotic resistance genes (ARGs) in the rhizosphere and phyllosphere of cherry radish, but not in the endophytic bacterial microbiota of the root, which is the edible part of the plant.

The study identifies specific AMR genes such as tet(M), erm(B), mef(A), msr(D), tet(O), erm(A), ant(6)-Ia, aph(3')-III, and erm(T) associated with resistance to tetracycline, erythromycin, clindamycin, and aminoglycosides in group A Streptococcus (GAS) strains. These genes are linked to high-frequency resistance in certain emm types, particularly emm11, emm75, emm77, and emm92, which are overrepresented in invasive GAS infections.

The study identified several antimicrobial resistance genes, including blaZ, tet(K), tet(L), tet(M), and various erm genes, in Staphylococcus aureus isolates from food products in Denmark. Additionally, the tst gene was detected in CC398 and CC45 isolates, indicating the presence of toxic shock syndrome toxin.

The study identifies various AMR genes and mutations in Enterococcus faecium and Enterobacter hormaechei isolates from a liver transplant patient, highlighting their roles in resistance to multiple antibiotics.

The study identified two transferrable ARGs, Erm(T) and tcr3, which conferred resistance to macrolide and tetracycline, respectively, in weaned piglets exposed to low-dose antibiotics.

The study identified two transferrable ARGs, Erm(T) and tcr3, which conferred resistance to macrolide and tetracycline, respectively, in weaned piglets exposed to low-dose antibiotics.

The study found that 94% of the evaluated commercial probiotics contained at least one transferable antimicrobial resistance (AMR) gene, with 82% containing two or more. The most commonly detected AMR genes were tetK (68%) and sul2 (60%).

The study identifies several antimicrobial resistance (AMR) genes in plasmidomes from global sewage samples, highlighting the prevalence of macrolide, lincosamide, streptogramin B, and quinolone resistance genes on plasmids.

The study identified various antibiotic resistance genes in Staphylococcus aureus isolates from coastal beaches and rivers on the island of Hawai'i, highlighting the presence of multidrug-resistant strains.

The study identifies various antimicrobial resistance genes in CoNS species, including mecA, norA, vatB, vgaB, lsaB, erm(43), ermT, fusD, fusF, and salA, which confer resistance to beta-lactams, fluoroquinolones, lincosamides, macrolides, streptogramins, fusidic acid, and other antimicrobial agents. These genes are associated with horizontal gene transfer and recombination, highlighting the dynamic nature of CoNS evolution.

The study reports two false-negative results in detecting meticillin-resistant Staphylococcus aureus (MRSA) using the Cepheid Xpert MRSA NxG assay. The isolates were resistant to multiple antibiotics, including beta-lactams, aminoglycosides, and tetracyclines, and carried resistance genes such as blaZ, mecA, erm(T), aac(6')-aph(2"), tet(L), and tet(M).

The study characterizes a carbapenem-resistant hypervirulent Klebsiella pneumoniae strain that harbors a conjugative virulence plasmid and a bla KPC–2-bearing plasmid. The virulence plasmid contains multiple resistance genes, including bla KPC–2, qnrB4, bla DHA–1, sul1, msr(E), mph(E), bla TEM–1B, aac(3)-IId, bla SHV–12, mph(A), bla CTX–M–65, bla TEM–1B, fosA3, and rmtB. The study also shows that these plasmids can be transferred to other bacterial strains, contributing to the spread of multidrug-resistant and hypervirulent K. pneumoniae.

The study identified mecC-positive MRSA strains ST425-t742 and ST130-t843 in surface waters, along with various AMR genes such as mecC, blaZ, ermT, msr(A/B), vgaA, tetL, mecA, mph(C), aac(6')-Ie-aph(2'')-Ia, aph(3')-IIIa, dfrA, fusB, and catpC221 in Staphylococcus aureus and coagulase-negative staphylococci.

The study identified the erm(T) gene in two Streptococcus suis isolates, SC262-ST954 and SC117-ST1314, which conferred macrolide-lincosamide resistance. The gene was located on a plasmid and an ICE, and was transmissible to other bacteria like S. aureus and S. pneumoniae.

The study identified various antimicrobial resistance genes in feline and canine Staphylococcus aureus and Staphylococcus pseudintermedius isolates, including blaZ, mecA, mecC, tet(K), tet(M), erm(A), erm(B), erm(C), erm(T), msr(A), aadE, aacA-aphD, aphA3, aadD, dfrG, lnu(B), and lsa(E). These genes conferred resistance to multiple antibiotics such as penicillins, tetracyclines, macrolides, aminoglycosides, and others.

The study identified various antimicrobial resistance genes in Staphylococcus aureus isolates from cattle, farm workers, and their environment, highlighting the potential for transmission between hosts and the need for monitoring AMR in One Health contexts.

The study identified ermG as a gene that increased in abundance in the feces of treated pigs compared to those that did not receive post-PRRS antimicrobials, indicating its role in macrolide, lincosamide, and streptogramin B resistance.

The study identifies four novel ICEHpa1 variants (ICE Gpa1818, ICE Gpa1808, ICE Gpa1807, and ICE Gpa1815) carrying diverse resistance genes, including tetracycline, streptomycin, gentamicin, sulfamethoxazole/trimethoprim, florfenicol, and amoxicillin resistance genes.

The study identifies various AMR genes in Enterococcus faecium, including vanA, vanB, ermB, ermT, ermA, aad(6), aph(3')-IIIa, aac(6')-Ie-aph(2')-Ia, sat-4, tetM, tet(W/N/W), dfrG, dfrF, lnuB, optrA, and lsaE, which are associated with different habitats and geographic locations.

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 18 AMR genes in non-serotype 2 Streptococcus suis isolates from healthy pigs, including genes conferring resistance to aminoglycosides, macrolides, lincosamides, tetracyclines, oxazolidinones, nucleosides, and phenicols.

The study evaluated the accuracy of whole-genome sequencing (WGS) for predicting antimicrobial resistance in enterococcal clinical isolates. It identified several AMR genes and mutations, including aac(6')-aph(2"), erm(B), erm(T), tet(L), tet(M), vanA, vanB, vanD, optrA, poxtA, and mutations in gyrA and parC, which were validated through genomic sequencing and phenotypic AST.

The study identified various antibiotic resistance genes (ARGs) in pig manure samples from different regions of Shanxi, China, highlighting the prevalence of tetracycline, aminoglycoside, macrolide, and phenicol resistance genes. Key ARGs included tet(W), tet(40), tet(Q), erm(B), erm(F), mef(A), aph(3')-III, ant(6)-Ia, cfr(C), floR, blaACI-1, optrA, cat, cfxA4, cfxA5, blaCTX-M-105, blaCTX-M-65, fexB, erm(T), mdf(A), and ole(B).

The study identified several AMR genes in Staphylococcus aureus isolates from white stork nestlings, including blaZ, ermA, ermT, tetK, and lnuA, which confer resistance to penicillin, erythromycin, clindamycin, and tetracycline. Most isolates were methicillin-susceptible (MSSA) with low levels of AMR.

The study identified the emergence of erythromycin-resistant invasive group A Streptococcus (iGAS) in West Virginia, with a high prevalence of resistance mediated by the ermT, ermA, ermB, and mefA genes. The majority of isolates were resistant to erythromycin and clindamycin, with emm92 and emm11 being the most common emm types.

The study identified numerous antimicrobial resistance (AMR) genes in methicillin-resistant Staphylococcus aureus (MRSA) CC398 isolates from diseased swine in Germany, including beta-lactam, tetracycline, macrolide, lincosamide, streptogramin B, phenicol, aminoglycoside, and fluoroquinolone resistance genes. These genes were often located on small transposons or plasmids, contributing to the multidrug resistance profile of the isolates.

The study identified several antimicrobial resistance genes in Clostridium perfringens isolates from poultry with necrotic enteritis, including tetA, tetB, tet44, InuP, erm(T), and ant(6)-Ib. The erm(T) gene was reported for the first time in C. perfringens and conferred resistance to erythromycin.

The study identified the presence of the tetracycline resistance gene tetK in Mammaliicoccus sciuri isolates, which was associated with tetracycline resistance. The gene was found on small plasmids, suggesting a potential mechanism for horizontal gene transfer.

The study identified several antibiotic resistance genes (ARGs) in porcine fecal microbiota, including aacA-aphD, ermT, lnuB, strB, sul2, tetA, tetM, and blaTEM, which showed increased abundance in antibiotic-treated pigs compared to untreated pigs.

The study identifies erm(C), erm(A), erm(T), msr(A), and mph(C) as key genes contributing to erythromycin resistance in methicillin-susceptible Staphylococcus aureus (MSSA) isolates in Spain, with a notable increase in erm(T) prevalence post-2013.

The study identified a novel plasmid-mediated antimicrobial resistance in Bhargavaea beijingensis strain PS04, carrying the ermT and tet(L) genes, which confer resistance to macrolides, lincosamides, streptogramin B, and tetracycline.

The study identifies multiple multidrug-resistant bacteria, including Enterococcus faecium and Klebsiella pneumoniae, carrying various resistance genes such as msr(C), erm(T), aac(6')-li, dfrG, ant(6)-la, aph(3")-Ib, sul2, and aph(6)-ld, which confer resistance to multiple antibiotics.

The study identified various antimicrobial resistance genes in Enterococcus spp. isolated from livestock and raw meat in Ghana, including genes conferring resistance to erythromycin, tetracycline, chloramphenicol, and other antibiotics. Notable genes include aac(6')-Ii, aph(3')-III, ant(6)-Ia, erm(B), erm(T), msr(C), lsa(A), lsa(E), lnu(B), tet(L), tet(M), tet(S), dfrG, cat, pbp5, and ClpL.

The study identified tetracycline resistance mediated by tetM, erythromycin and clindamycin resistance mediated by ermB, ermT, and mefA in Streptococcus pyogenes isolates from pediatric invasive infections in Spain.

The study identified multidrug-resistant Enterococcus faecium strains carrying resistance genes such as aac(6')-Ii, erm(B), erm(T), tet(L), tet(M), and msr(C), as well as mutations in gyrA and parC contributing to ciprofloxacin resistance.

The study identifies several antibiotic-resistance genes associated with febrile neutropenia in pediatric oncology patients undergoing hematopoietic stem cell transplantation, including msr(C), dfrG, erm(T), VanHAX, aac(6')-Ib, aph(3')-III, ant(6)-Ia, and aac(6')-Ii.

The study identified various AMR genes including blaZ, mecA, erm(A), erm(C), erm(T), mph(C), msr(A), vga(A), lsaB, ant4′, aac6′-aph2″, tet(K), tet(M), dfrA, dfrG, catPC221, and mupA in CoNS isolates from healthy dogs and dog-owners. Additionally, a linezolid-resistant S. epidermidis isolate was found to have multiple amino acid substitutions in 50S ribosomal proteins L3 and L4.

The study identified various antimicrobial resistance genes in Staphylococcus aureus isolates from Vermont dairy farms, including beta-lactam resistance genes (blaZ, blaI, blaR), tetracycline resistance genes (tet(K), tet(38)), erythromycin resistance genes (erm(T), erm(A)), lincomycin resistance gene (lnu(G)), aminoglycoside resistance genes (aaC3, ant(9)-la), multidrug resistance efflux pumps (lmrS, mepA, mepR, mepB, norA, norB, arlS, arlR, mgrA), and fosfomycin resistance gene (fosB).

The study identifies several AMR genes and mutations in Enterococcus isolates, including vanB for vancomycin resistance, lsaA, lsaE, lnuB for lincosamide resistance, tetM and tetL for tetracycline resistance, aac6'-Ii, aac6'-aph2'', aph3'-III, and ant6-Ia for aminoglycoside resistance, msrC, ermB, and ermT for macrolide resistance, and mutations in gyrA, parC, pbp5, and 23S rRNA for fluoroquinolone, penicillin, and linezolid resistance.

The study identifies multiple AMR genes and mutations in CoNS isolates from various hosts, highlighting the spread of multidrug resistance and the role of mobile genetic elements in the dissemination of resistance traits.

The study identified a bovine isolate carrying the extended-spectrum beta-lactamase gene blaTEM-116, highlighting concerns about antimicrobial resistance in dairy farm environments. Multiple antimicrobial resistance genes were detected in both bovine and human isolates, including genes conferring resistance to tetracyclines, penicillins, fosfomycin, and aminoglycosides.

The study presents a comprehensive meta-analysis of antibiotic resistance in bacteria isolated from mammalian wild game, highlighting the prevalence of various AMR genes and mutations across different bacterial species.

The study identified several AMR genes and mutations in Glaesserella parasuis isolates from South China, including bla ROB–1, catA3, floR, erm(T), tet(B), and tet(H) for resistance to amoxicillin, chloramphenicol, florfenicol, erythromycin, and tetracycline, as well as mutations in gyrA, parC, and parE for enrofloxacin resistance.

The study identified the macrolide resistance gene erm(T) and the A2059G mutation in 23S rRNA in Glaesserella parasuis. It also characterized ICEs carrying erm(T) for the first time in this species.

The study identified ermT, folP, lmrP, and group_31 as genes associated with antimicrobial resistance in emm 89 Streptococcus pyogenes strains from Japan.

The study identifies various antimicrobial resistance genes in Staphylococcus aureus isolates from patients with chronic rhinosinusitis, including blaI, blaZ, blaPC1, blaR1, erm(T), erm(A), tet(38), mepA, fosB, and ermC, which confer resistance to penicillin, macrolides, lincosamides, streptogramins, tetracycline, and fosfomycin.

The study identifies the emergence of a mef(A)-msr(D) positive emm2-ST55 lineage as a major driver of increased macrolide resistance in Streptococcus pyogenes pharyngitis in Portugal between 2014 and 2019. It also characterizes various macrolide resistance genes including erm(A), erm(B), erm(T), tet(O), and tet(M) associated with different genetic lineages.

The study reports the first detection of livestock-associated Methicillin-Resistant Staphylococcus aureus ST398 in wild birds in Brazil, highlighting the emergence of antimicrobial-resistant S. aureus in a protected Atlantic Forest fragment. The MRSA isolates exhibited a broad resistome, including genes for resistance to multiple antimicrobial classes.

The study identified erm(T), tet(K), and tet(M) as the primary AMR genes in S. aureus isolates from mastitis in Sardinia, with low resistance rates to erythromycin and tetracycline.