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<p>The growing prevalence of antimicrobial resistance poses a global threat to human and animal health. In this study, we investigated the occurrence and genetic basis of antimicrobial resistance in a Magellanic Penguin (<i>Spheniscus magellanicus</i>) rescued off the coast of Rio de Janeiro, Brazil. The penguin presented a bacterial infection, identified as <i>Klebsiella pneumoniae</i>. Molecular analysis revealed the presence of several resistance genes, including those that confer resistance to carbapenems, beta-lactams, quinolones, and other classes of antibiotics. The bacterial strain belonged to Sequence Type 70 (ST70), a clone previously associated with human nosocomial infections. This study highlights the potential of migratory penguins as vectors of antimicrobial-resistant microorganisms, emphasizing the need for a One Health approach to address the complex interaction between environmental factors, animal health, and human well-being. The findings underscore the urgency of implementing strategies to mitigate the spread of multidrug-resistant bacteria in natural and urban environments.</p>

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Multidrug-resistant Klebsiella pneumoniae ST70 harboring blaNDM in a migratory Penguin

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月1日

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  • Sandryelle Merces Freire,
  • Annelise Kyllar,
  • Marina Côrtes,
  • Thiago P. G. Chagas,
  • Felipe Pinheiro,
  • Renata F. A. Pereira,
  • Fabio Aguiar-Alves,
  • Bruno Penna

摘要

The growing prevalence of antimicrobial resistance poses a global threat to human and animal health. In this study, we investigated the occurrence and genetic basis of antimicrobial resistance in a Magellanic Penguin (Spheniscus magellanicus) rescued off the coast of Rio de Janeiro, Brazil. The penguin presented a bacterial infection, identified as Klebsiella pneumoniae. Molecular analysis revealed the presence of several resistance genes, including those that confer resistance to carbapenems, beta-lactams, quinolones, and other classes of antibiotics. The bacterial strain belonged to Sequence Type 70 (ST70), a clone previously associated with human nosocomial infections. This study highlights the potential of migratory penguins as vectors of antimicrobial-resistant microorganisms, emphasizing the need for a One Health approach to address the complex interaction between environmental factors, animal health, and human well-being. The findings underscore the urgency of implementing strategies to mitigate the spread of multidrug-resistant bacteria in natural and urban environments.