Coagulase-negative staphylococci carrying cfr and PVL genes, and MRSA/MSSA-CC398 in the swine farm environment.

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  • Additional Information
    • Source:
      Publisher: Elsevier Scientific Pub. Co Country of Publication: Netherlands NLM ID: 7705469 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-2542 (Electronic) Linking ISSN: 03781135 NLM ISO Abbreviation: Vet Microbiol Subsets: MEDLINE
    • Publication Information:
      Original Publication: Amsterdam, Elsevier Scientific Pub. Co.
    • Subject Terms:
      Bacterial Proteins/*genetics ; Bacterial Toxins/*genetics ; Exotoxins/*genetics ; Leukocidins/*genetics ; Staphylococcal Infections/*veterinary ; Staphylococcus/*genetics; Air Microbiology ; Animals ; Anti-Bacterial Agents/pharmacology ; Bacterial Typing Techniques ; Coagulase ; Drug Resistance, Multiple, Bacterial/genetics ; Farms ; Genes, Bacterial ; Manure/microbiology ; Methicillin/pharmacology ; Methicillin-Resistant Staphylococcus aureus/drug effects ; Methicillin-Resistant Staphylococcus aureus/genetics ; Microbial Sensitivity Tests ; Multilocus Sequence Typing ; Staphylococcus/drug effects ; Staphylococcus aureus/drug effects ; Staphylococcus aureus/genetics ; Swine ; Virulence Factors/genetics
    • Abstract:
      This work aimed at characterizing four Staphylococcus aureus and 68 coagulase-negative staphylococci (CoNS), recovered from the air and liquid manure tank of two swine farms with intensive- and semi-extensive-production types, for their antimicrobial resistance pheno-/genotypes and their virulence gene content. Molecular typing was performed by spa typing, MLST, agr typing, and SCCmec typing, where applicable. Conjugation experiments were performed to assess the transferability of the linezolid resistance gene cfr, and its genetic environment was determined by Whole-Genome-Sequencing. The four S. aureus (intensive-production farm, IP-farm) were typed as t011-agrI-CC398-ST398, were scn-negative and two of them were methicillin-resistant (MRSA) with the mecA gene (SCCmec-V). Multidrug resistance was seen in 87 % of the CoNS. Statistically significant differences among the antimicrobial resistance rates of CoNS from the two farms were observed for cefoxitin, aminoglycosides, tetracycline, ciprofloxacin and trimethoprim-sulfamethoxazole. Eight methicillin-resistant CoNS, which were recovered from the IP-farm, carried the mecA gene. One S. simulans isolate was PVL-positive and three S. cohnii eta-positive. One S. equorum and one S. arlettae showed linezolid resistance and carried the cfr gene (IP-farm), which was non-transferable by conjugation into S. aureus. The cfr genetic context in both isolates was identical, with the lsa(B) gene located upstream of cfr. The environment of swine farms might contribute to the dissemination of CoNS that show multidrug resistance and harbor important virulence factors.
      Competing Interests: Declaration of Competing Interest None.
      (Copyright © 2020 Elsevier B.V. All rights reserved.)
    • Contributed Indexing:
      Keywords: CoNS; Linezolid resistance; MRSA-CC398; PVL; Swine-farm; cfr
    • Accession Number:
      0 (Anti-Bacterial Agents)
      0 (Bacterial Proteins)
      0 (Bacterial Toxins)
      0 (CFR protein, Staphylococcus aureus)
      0 (Coagulase)
      0 (Exotoxins)
      0 (Leukocidins)
      0 (Manure)
      0 (Panton-Valentine leukocidin)
      0 (Virulence Factors)
      Q91FH1328A (Methicillin)
    • Publication Date:
      Date Created: 20200411 Date Completed: 20201124 Latest Revision: 20201124
    • Publication Date:
      20240829
    • Accession Number:
      10.1016/j.vetmic.2020.108631
    • Accession Number:
      32273010