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Unveiling the persistent threat: recent insights into Listeria monocytogenes adaptation, biofilm formation, and pathogenicity in foodborne infections

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Abstract

Listeriosis is a severe disease caused by the foodborne pathogen Listeria monocytogenes, posing a significant risk to vulnerable populations such as the elderly, pregnant women, and newborns. While relatively uncommon, it has a high global mortality rate of 20–30%. Recent research indicates that smaller outbreaks of the more severe, invasive form of the disease occur more frequently than previously thought, despite the overall stable infection rates of L. monocytogenes over the past 10 years. The ability of L. monocytogenes to form biofilm structures on various surfaces in food production environments contributes to its persistence and challenges in eradication, potentially leading to contamination of food and food production facilities. To address these concerns, this review focuses on recent developments in epidemiology, risk evaluations, and molecular mechanisms of L. monocytogenes survival in adverse conditions and environmental adaptation. Additionally, it covers new insights into strain variability, pathogenicity, mutations, and host vulnerability, emphasizing the important events framework that elucidates the biochemical pathways from ingestion to infection. Understanding the adaptation approaches of L. monocytogenes to environmental stress factors is crucial for the development of effective and affordable pathogen control techniques in the food industry, ensuring the safety of food production.

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Data sharing is not applicable to this article as no datasets were generated or analysed during the current study.

Abbreviations

EFSA:

European Food Safety Authority

ECDC:

European Centre for Disease Prevention and Control

CDC:

Centers for Disease Control and Prevention

WGS:

Whole genome sequencing

PFGE:

Pulsed-field gel electrophoresis

FDA:

Food and Drug Administration

CFSAN:

Center for Food Safety and Applied Nutrition

SNPs:

Single Nucleotide Polymorphisms

wgMLST:

Whole genome multi-locus sequence typing

FSIS:

Food Safety and Inspection Service

EU:

European Union

RTE:

Ready-to-eat

WHO:

World health organization

NGS:

Next-generation sequencing

SSIs:

Stress survival islets

GRAS:

Generally regarded as safe

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No funding was received for the said study.

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Authors and Affiliations

Authors

Contributions

RA: conceptualization, design of the study, writing, review, and editing. VK: writing, review, and editing. AJJ: conceptualization, design of the study, writing, review, and editing.

Corresponding author

Correspondence to Jayesh J. Ahire.

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Conflicts of interest

Ahire JJ was employed by Dr. Reddy’s Laboratories Limited. Dr. Reddy’s Laboratories had no direct and indirect role in the study design/analysis/writing/publication of this review article. Other authors have no conflict of interest to declare.

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Rohilla, A., Kumar, V. & Ahire, J.J. Unveiling the persistent threat: recent insights into Listeria monocytogenes adaptation, biofilm formation, and pathogenicity in foodborne infections. J Food Sci Technol (2024). https://doi.org/10.1007/s13197-023-05918-6

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  • DOI: https://doi.org/10.1007/s13197-023-05918-6

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