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Aljuwayd M, Malli IA, Olson EG, Ricke SC, Rothrock MJ, Kwon YM. Disinfectants and one health review: The role of reactive oxygen species in the bactericidal activity of chlorine against Salmonella. One Health 2025; 20:100989. [PMID: 40035020 PMCID: PMC11874720 DOI: 10.1016/j.onehlt.2025.100989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 01/19/2025] [Accepted: 02/05/2025] [Indexed: 03/05/2025] Open
Abstract
Salmonella are among the most common foodborne pathogens in humans, and they are associated with mild to severe diseases commonly referred to as salmonellosis. The genus resides in various animals' intestinal tracts, including humans. It is one of the most diverse genera of bacteria, including over 2500 serovars. Consumption of poultry products contaminated with Salmonella is a significant source of disease transmission in humans. Because of this food safety concern, the poultry industry and governments spend billions of dollars on Salmonella containment methods. However, a completely effective strategy is yet to be established. Chlorine has been commonly used as a disinfectant in the poultry industry. In humans, antibiotic therapy is the primary means for managing Salmonella infection. However, widespread use of both compounds at sub-inhibitory concentrations has allowed resistant strains to emerge and rapidly spread globally. Both antimicrobial compounds involve generating reactive oxygen species (ROS) as a bactericidal mechanism of action. However, ROS generation and its association with bacterial survival and growth inhibition have not been widely explored. Thus, a better understanding of ROS generation during antimicrobial treatments may help devise better Salmonella containment strategies.
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Affiliation(s)
- Mohammed Aljuwayd
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA
- College of Medical Applied Sciences, The Northern Border University, Arar 91431, Saudi Arabia
| | - Israa Abdullah Malli
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Jeddah 21423, Saudi Arabia
- King Abdullah International Medical Research Center, Jeddah 22384, Saudi Arabia
| | - Elena G. Olson
- Meat Science and Animal Biologics Discovery Program, Department of Animal and Dairy Sciences, University of Wisconsin, Madison, WI 53706, USA
| | - Steven C. Ricke
- Meat Science and Animal Biologics Discovery Program, Department of Animal and Dairy Sciences, University of Wisconsin, Madison, WI 53706, USA
| | - Michael J. Rothrock
- United States Department of Agriculture, Agricultural Research Service, Athens, GA 30605, USA
| | - Young Min Kwon
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA
- Department of Poultry Science, University of Arkansas System, Division of Agriculture, Fayetteville, AR 72701, USA
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Richards AK, Kue S, Norris CG, Shariat NW. Genomic and phenotypic characterization of Salmonella enterica serovar Kentucky. Microb Genom 2023; 9:001089. [PMID: 37750759 PMCID: PMC10569734 DOI: 10.1099/mgen.0.001089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/27/2023] [Indexed: 09/27/2023] Open
Abstract
Non-typhoidal Salmonella are extremely diverse and different serovars can exhibit varied phenotypes, including host adaptation and the ability to cause clinical illness in animals and humans. In the USA, Salmonella enterica serovar Kentucky is infrequently found to cause human illness, despite being the top serovar isolated from broiler chickens. Conversely, in Europe, this serovar falls in the top 10 serovars linked to human salmonellosis. Serovar Kentucky is polyphyletic and has two lineages, Kentucky-I and Kentucky-II; isolates belonging to Kentucky-I are frequently isolated from poultry in the USA, while Kentucky-II isolates tend to be associated with human illness. In this study, we analysed whole-genome sequences and associated metadata deposited in public databases between 2017 and 2021 by federal agencies to determine serovar Kentucky incidence across different animal and human sources. Of 5151 genomes, 90.3 % were from isolates that came from broilers, while 5.9 % were from humans and 3.0 % were from cattle. Kentucky-I isolates were associated with broilers, while isolates belonging to Kentucky-II and a new lineage, Kentucky-III, were more commonly associated with cattle and humans. Very few serovar Kentucky isolates were associated with turkey and swine sources. Phylogenetic analyses showed that Kentucky-III genomes were more closely related to Kentucky-I, and this was confirmed by CRISPR-typing and multilocus sequence typing (MLST). In a macrophage assay, serovar Kentucky-II isolates were able to replicate over eight times better than Kentucky-I isolates. Analysis of virulence factors showed unique patterns across these three groups, and these differences may be linked to their association with different hosts.
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Affiliation(s)
- Amber K. Richards
- Department of Population Health, University of Georgia, Athens, GA, USA
| | - Song Kue
- Department of Population Health, University of Georgia, Athens, GA, USA
| | - Connor G. Norris
- Department of Population Health, University of Georgia, Athens, GA, USA
| | - Nikki W. Shariat
- Department of Population Health, University of Georgia, Athens, GA, USA
- Center for Food Safety, University of Georgia, Griffin, GA, USA
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Gopinath GR, Jang H, Beaubrun JJG, Gangiredla J, Mammel MK, Müller A, Tamber S, Patel IR, Ewing L, Weinstein LM, Wang CZ, Finkelstein S, Negrete F, Muruvanda T, Allard M, Sockett DC, Pagotto F, Tall BD, Stephan R. Phylogenomic Analysis of Salmonella enterica subsp. enterica Serovar Bovismorbificans from Clinical and Food Samples Using Whole Genome Wide Core Genes and kmer Binning Methods to Identify Two Distinct Polyphyletic Genome Pathotypes. Microorganisms 2022; 10:microorganisms10061199. [PMID: 35744717 PMCID: PMC9228720 DOI: 10.3390/microorganisms10061199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 12/04/2022] Open
Abstract
Salmonella enterica subsp. enterica serovar Bovismorbificans has caused multiple outbreaks involving the consumption of produce, hummus, and processed meat products worldwide. To elucidate the intra-serovar genomic structure of S. Bovismorbificans, a core-genome analysis with 2690 loci (based on 150 complete genomes representing Salmonella enterica serovars developed as part of this study) and a k-mer-binning based strategy were carried out on 95 whole genome sequencing (WGS) assemblies from Swiss, Canadian, and USA collections of S. Bovismorbificans strains from foodborne infections. Data mining of a digital DNA tiling array of legacy SARA and SARB strains was conducted to identify near-neighbors of S. Bovismorbificans. The core genome analysis and the k-mer-binning methods identified two polyphyletic clusters, each with emerging evolutionary properties. Four STs (2640, 142, 1499, and 377), which constituted the majority of the publicly available WGS datasets from >260 strains analyzed by k-mer-binning based strategy, contained a conserved core genome backbone with a different evolutionary lineage as compared to strains comprising the other cluster (ST150). In addition, the assortment of genotypic features contributing to pathogenesis and persistence, such as antimicrobial resistance, prophage, plasmid, and virulence factor genes, were assessed to understand the emerging characteristics of this serovar that are relevant clinically and for food safety concerns. The phylogenomic profiling of polyphyletic S. Bovismorbificans in this study corresponds to intra-serovar variations observed in S. Napoli and S. Newport serovars using similar high-resolution genomic profiling approaches and contributes to the understanding of the evolution and sequence divergence of foodborne Salmonellae. These intra-serovar differences may have to be thoroughly understood for the accurate classification of foodborne Salmonella strains needed for the uniform development of future food safety mitigation strategies.
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Affiliation(s)
- Gopal R. Gopinath
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
- Correspondence: ; Tel.: +1-240-402-3612
| | - Hyein Jang
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Junia Jean-Gilles Beaubrun
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
- Biological Analysis Division, Public Health Command Europe Laboratory Sciences, Room 102, Bldg 3810, Kirchberg Kaserne, RP 66849 Landstuhl, Germany
| | - Jayanthi Gangiredla
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Mark K. Mammel
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Andrea Müller
- Institute for Food Safety and Hygiene, University of Zurich, CH-8057 Zurich, Switzerland; (A.M.); (R.S.)
| | - Sandeep Tamber
- Food Directorate, Bureau of Microbial Hazards/Health Canada, Ottawa, ON K1A 0K9, Canada; (S.T.); (F.P.)
| | - Isha R. Patel
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Laura Ewing
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Leah M. Weinstein
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Caroline Z. Wang
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Samantha Finkelstein
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Flavia Negrete
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Tim Muruvanda
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD 20740, USA; (T.M.); (M.A.)
| | - Marc Allard
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD 20740, USA; (T.M.); (M.A.)
| | - Donald C. Sockett
- Wisconsin Veterinary Diagnostic Laboratory, University of Wisconsin-Madison, Madison, WI 53706, USA;
| | - Franco Pagotto
- Food Directorate, Bureau of Microbial Hazards/Health Canada, Ottawa, ON K1A 0K9, Canada; (S.T.); (F.P.)
| | - Ben D. Tall
- Center of Food Safety and Applied Nutrition, U.S. Food and Drug Administration, Laurel, MD 20708, USA; (H.J.); (J.J.-G.B.); (J.G.); (M.K.M.); (I.R.P.); (L.E.); (L.M.W.); (C.Z.W.); (S.F.); (F.N.); (B.D.T.)
| | - Roger Stephan
- Institute for Food Safety and Hygiene, University of Zurich, CH-8057 Zurich, Switzerland; (A.M.); (R.S.)
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