Antibiotic-resistant Salmonella in the food supply and the potential role of antibiotic alternatives for control

Divek V.T. Nair, Kumar Venkitanarayanan, Anup Kollanoor Johny

Research output: Contribution to journalReview articlepeer-review

203 Scopus citations


Salmonella enterica is one of the most ubiquitous enteropathogenic bacterial species on earth, and comprises more than 2500 serovars. Widely known for causing non-typhoidal foodborne infections (95%), and enteric (typhoid) fever in humans, Salmonella colonizes almost all warm- and cold-blooded animals, in addition to its extra-animal environmental strongholds. The last few decades have witnessed the emergence of highly virulent and antibiotic-resistant Salmonella, causing greater morbidity and mortality in humans. The emergence of several Salmonella serotypes resistant to multiple antibiotics in food animals underscores a significant food safety hazard. In this review, we discuss the various antibiotic-resistant Salmonella serotypes in food animals and the food supply, factors that contributed to their emergence, their antibiotic resistance mechanisms, the public health implications of their spread through the food supply, and the potential antibiotic alternatives for controlling them.

Original languageEnglish (US)
Article number167
Issue number10
StatePublished - Oct 2018

Bibliographical note

Publisher Copyright:
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (


  • Antibiotic alternatives
  • Antibiotic resistant
  • Control
  • Food supply
  • Salmonella
  • Serotypes


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