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<p>Antimicrobial resistance (AMR) in wildlife-associated bacteria represents a growing One Health concern. This study described the occurrence and antimicrobial susceptibility of <i>Mammaliicoccus sciuri</i> and <i>Staphylococcus</i> spp. isolated from reptiles undergoing rehabilitation in northeastern Brazil. Oropharyngeal and cloacal samples from 87 reptiles yielded 87 isolates identified by MALDI-TOF MS, and antimicrobial susceptibility was assessed by disk diffusion. Five bacterial species were detected, with a predominance of <i>M. sciuri</i> (79/87; 90.8%). Resistance to oxacillin was the most frequent finding (40/87; 46.0%), followed by erythromycin (16/87; 18.4%), while resistance to other antimicrobials remained low. In total, 46/87 (52.9%) isolates were resistant to at least one antimicrobial and 12/87 (13.8%) were classified as multidrug-resistant, mainly from bacteria isolated from <i>Iguana iguana</i>, <i>Chelonoidis carbonaria</i>, <i>Boa constrictor</i>, and <i>Tupinambis teguixin</i>. MAR indices ranged from 0.00 to 0.86, with values &gt; 0.20 in 25.3% of isolates. These findings indicate that rehabilitating reptiles may act as reservoirs of oxacillin-resistant staphylococci, reinforcing the need to include wildlife rehabilitation centers in AMR surveillance strategies.</p> Graphical Abstract <p></p>

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Antimicrobial resistance profiles of Mammaliicoccus sciuri and Staphylococcus spp. isolated from reptiles undergoing rehabilitation in Northeastern Brazil

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月27日

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  • Denny Parente de Sá Barreto Maia Leite,
  • Eduarda Beatriz Rodrigues Barbosa,
  • Victor Oliveira Herculano de Farias,
  • Valdir Vieira da Silva,
  • Lucilene Martins Trindade Gonçalves,
  • Pollyanne Raysa Fernandes de Oliveira,
  • Rafaela Silva Santos,
  • Maria Eduarda Uchôa Cavalcanti Moreira da Silva,
  • Gustavo de Oliveira Alves Pinto,
  • José Givanildo da Silva,
  • Karolina Rosa Fernandes Beraldo,
  • Maria Aparecida Juliano,
  • Rinaldo Aparecido Mota

摘要

Antimicrobial resistance (AMR) in wildlife-associated bacteria represents a growing One Health concern. This study described the occurrence and antimicrobial susceptibility of Mammaliicoccus sciuri and Staphylococcus spp. isolated from reptiles undergoing rehabilitation in northeastern Brazil. Oropharyngeal and cloacal samples from 87 reptiles yielded 87 isolates identified by MALDI-TOF MS, and antimicrobial susceptibility was assessed by disk diffusion. Five bacterial species were detected, with a predominance of M. sciuri (79/87; 90.8%). Resistance to oxacillin was the most frequent finding (40/87; 46.0%), followed by erythromycin (16/87; 18.4%), while resistance to other antimicrobials remained low. In total, 46/87 (52.9%) isolates were resistant to at least one antimicrobial and 12/87 (13.8%) were classified as multidrug-resistant, mainly from bacteria isolated from Iguana iguana, Chelonoidis carbonaria, Boa constrictor, and Tupinambis teguixin. MAR indices ranged from 0.00 to 0.86, with values > 0.20 in 25.3% of isolates. These findings indicate that rehabilitating reptiles may act as reservoirs of oxacillin-resistant staphylococci, reinforcing the need to include wildlife rehabilitation centers in AMR surveillance strategies.

Graphical Abstract