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Kuenstner JT, Xu Q, Bull TJ, Foddai ACG, Grant IR, Naser SA, Potula R, Zhang P, Shafran I, Akhanli SE, Khaiboullina S, Kruzelock R. Cytokine expression in subjects with Mycobacterium avium ssp. paratuberculosis positive blood cultures and a meta-analysis of cytokine expression in Crohn's disease. Front Cell Infect Microbiol 2024; 14:1327969. [PMID: 38415011 PMCID: PMC10896875 DOI: 10.3389/fcimb.2024.1327969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/25/2024] [Indexed: 02/29/2024] Open
Abstract
Objectives 1) Culture Mycobacterium avium ssp. paratuberculosis (MAP)from blood, 2) assess infection persistence, 3) determine Crohn's disease (CD) cytokine expression, 4) compare CD cytokine expression to tuberculosis, and 5) perform a meta-analysis of cytokine expression in CD. Methods The Temple University/Abilene Christian University (TU/ACU) study had a prospective case control design with 201 subjects including 61 CD patients and 140 non-CD controls. The culture methods included MGIT, TiKa and Pozzato broths, and were deemed MAP positive, if IS900 PCR positive. A phage amplification assay was also performed to detect MAP. Cytokine analysis of the TU/ACU samples was performed using Simple Plex cytokine reagents on the Ella ELISA system. Statistical analyses were done after log transformation using the R software package. The meta-analysis combined three studies. Results Most subjects had MAP positive blood cultures by one or more methods in 3 laboratories. In our cytokine study comparing CD to non-CD controls, IL-17, IFNγ and TNFα were significantly increased in CD, but IL-2, IL-5, IL-10 and GM-CSF were not increased. In the meta-analysis, IL-6, IL-8 and IL-12 were significantly increased in the CD patients. Conclusion Most subjects in our sample had MAP infection and 8 of 9 subjects remained MAP positive one year later indicating persistent infection. While not identical, cytokine expression patterns in MAP culture positive CD patients in the TU/ACU study showed similarities (increased IL-17, IFNγ and TNFα) to patterns of patients with Tuberculosis in other studies, indicating the possibilities of similar mechanisms of pathogen infection and potential strategies for treatment.
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Affiliation(s)
- J Todd Kuenstner
- Department of Biology, Abilene Christian University, Abilene, TX, United States
| | - Qiang Xu
- Department of Biology, Abilene Christian University, Abilene, TX, United States
| | - Tim J Bull
- Institute of Infection and Immunity, St. George's University of London, London, United Kingdom
| | - Antonio C G Foddai
- School of Health and Life Sciences, Teesside University, Middlesbrough, United Kingdom
| | - Irene R Grant
- School of Biological Sciences, Queen's University Belfast, Belfast, United Kingdom
| | - Saleh A Naser
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL, United States
| | - Raghava Potula
- Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | | | | | | | - Svetlana Khaiboullina
- Department of Microbiology and Immunology, University of Nevada, Reno, NV, United States
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Russell Kruzelock
- Department of Biology, Abilene Christian University, Abilene, TX, United States
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Greenstein RJ, Su L, Grant IR, Foddai ACG, Turner A, Nagati JS, Brown ST, Stabel JR. Comparison of a mycobacterial phage assay to detect viable Mycobacterium avium subspecies paratuberculosis with standard diagnostic modalities in cattle with naturally infected Johne disease. Gut Pathog 2021; 13:30. [PMID: 33957980 PMCID: PMC8103604 DOI: 10.1186/s13099-021-00425-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 04/29/2021] [Indexed: 11/10/2022] Open
Abstract
Background Mycobacterium avium subspecies paratuberculosis (MAP), the cause of Johne disease, is a slow growing mycobacterium. Viable MAP detection is difficult, inconstant and time-consuming. The purpose of this study was to compare a rapid phage/qPCR assay performed on peripheral blood mononuclear cells (PBMCs) with three standard methods of MAP detection: fecal MAP PCR; plasma antigen-specific IFN-γ & serum MAP ELISA hypothesizing that, if sensitive and specific, Johne animals would be positive and Control animals negative. We studied a well characterized herd of Holstein cattle that were naturally infected with MAP and their Controls. Results With phage/qPCR 72% (23/32) of Johne and 35% (6/17) of Controls were MAP positive. With fecal PCR 75% (24/32) of Johne and 0% (0/17) of Controls were MAP positive. With plasma antigen-specific IFN-γ 69% (22/32) of Johne and 12% (2/17) of Controls were MAP positive. With serum MAP ELISA, 31% (10/32) of Johne and 0% (0/17) of Controls were MAP positive. When phage / qPCR and fecal PCR results were combined, 100% (32/32) Johne and 35% (6/17) of Control animals were MAP positive. Younger Control animals (1–3 years) had significantly fewer plaques (25 ± 17 SEM) than older Controls (4–12 years) (309 ± 134 p = 0.04). The same trend was not observed in the Johne animals (p = 0.19). Conclusions In contrast to our hypothesis, using the phage/qPCR assay we find that viable circulating MAP can rapidly be detected from the blood of animals infected with, as well as those in the Control group evidently colonized by MAP. These data indicate that the presence of viable MAP in blood does not necessarily signify that an animal must of necessity be demonstrably ill or be MAP positive by standard diagnostic methods.
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Affiliation(s)
- Robert J Greenstein
- Department of Surgery, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA. .,Laboratory of Molecular Surgical Research, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA.
| | - Liya Su
- Laboratory of Molecular Surgical Research, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA
| | - Irene R Grant
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Antonio C G Foddai
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Amy Turner
- Johne's Disease Research Project USDA-ARS-NADC, Ames, IA, USA
| | - Jason S Nagati
- Department of Medicine, Columbia University Medical Center, New York, NY, USA
| | - Sheldon T Brown
- Infectious Disease Section, James J. Peters Veterans Affairs Medical Center, Bronx, NY, USA.,Department of Medicine, Icahn School of Medicine at Mt. Sinai, New York, NY, USA
| | - Judith R Stabel
- Johne's Disease Research Project USDA-ARS-NADC, Ames, IA, USA
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Foddai ACG, Watson G, McAloon CG, Grant IR. Phagomagnetic separation-quantitative PCR: A rapid, sensitive and specific surveillance tool for viable Mycobacterium avium ssp. paratuberculosis in bulk tank and individual cow milk samples. J Dairy Sci 2021; 104:5218-5228. [PMID: 33663850 DOI: 10.3168/jds.2020-19626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/30/2020] [Indexed: 12/24/2022]
Abstract
Bulk tank milk samples from 392 Northern Ireland dairy farms and individual milk from animals (n = 293) on 4 of these farms were tested by a novel phagomagnetic separation (PhMS)-quantitative (q)PCR assay able to detect and quantify viable Mycobacterium avium ssp. paratuberculosis (MAP), to demonstrate its potential utility as a milk surveillance tool. Viable MAP were detected in 26.5% of the bulk tank milks, with MAP contamination levels ranging from 1 to 8,432 MAP/50 mL of milk; less than 2% of farms had MAP contamination levels >100 MAP/50 mL in their bulk tank milk. Follow-up PhMS-qPCR testing of milk from individual animals on 4 farms that had the highest numbers of MAP in their bulk tank milks indicated that 17 to 24% of animals in each herd were shedding viable MAP in their milk. Mean MAP numbers detected ranged between 6.7 and 42.1 MAP/50 mL of milk. No significant correlation was observed between the detection of viable MAP in bulk or individual milks by PhMS-qPCR and parallel milk ELISA results, or between PhMS-qPCR results and any other milk recording results (somatic cell count, total bacterial count, % butterfat, or % protein). Viable MAP was detected by IS900 qPCR in 52 (85.2%) Pozzato broth cultures of 61 PhMS-qPCR-positive individual milks after 12 wk of incubation, suggesting few PhMS-qPCR results were false positives. The mean sensitivities of the PhMS-qPCR assay and milk ELISA applied to individual milks were estimated by Bayesian latent class analysis to be 0.7096 and 0.2665, respectively, and mean specificities were similar (0.9626 and 0.9509). Our findings clearly demonstrate that the novel PhMS-qPCR assay could be a useful milk surveillance tool for dairy processors, or a milk monitoring tool for Johne's disease control or milk quality assurance programs.
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Affiliation(s)
- Antonio C G Foddai
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, Northern Ireland, United Kingdom
| | - Gary Watson
- Dale Farm Cooperative Limited, Dale Farm House, 15 Dargan Rd, Belfast BT3 9LS, Northern Ireland, United Kingdom
| | - Conor G McAloon
- Section of Herd Health and Animal Husbandry, School of Veterinary Medicine, University College Dublin, Dublin D04 W6F6, Ireland
| | - Irene R Grant
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, Northern Ireland, United Kingdom.
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Steuer P, Tejeda C, Martinez O, Ramirez-Reveco A, González N, Grant IR, Foddai ACG, Collins MT, Salgado M. Effectiveness of copper ions against Mycobacterium avium subsp. paratuberculosis and bacterial communities in naturally contaminated raw cow's milk. J Appl Microbiol 2020; 131:146-154. [PMID: 33151641 DOI: 10.1111/jam.14923] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/02/2020] [Indexed: 01/14/2023]
Abstract
AIM The focus of the present study was to evaluate the copper ions treatment on the viability of Mycobacterium avium subsp. paratuberculosis (MAP) and other bacterial communities in cow's milk. METHODS AND RESULTS A copper ions treatment was evaluated in naturally contaminated cow's milk to assay MAP load and/or viability, and relative abundance of other bacterial communities. In addition, physical-chemical analyses of the milk were also performed. All analyses were carried out before and after a copper ions treatment. After copper ions treatment, pH and copper concentration markedly increased in milk; the numbers of viable MAP significantly decreased. The relative abundance of the four target phyla decreased, with the phyla Bacteroidetes and Firmicutes surviving treatment in higher proportions (4 and 2·1% of original populations, respectively). A progressively higher percentage of dead bacterial cells after 5 and 20 min copper ions treatments was found (12 and 35%, respectively). CONCLUSION With the exception of some MAP-tolerant strains, we have once again demonstrated that copper ions have a significant inactivating effect on MAP as well as certain other bacterial communities found in naturally contaminated cow's milk. SIGNIFICANCE AND IMPACT OF THE STUDY This study showed a significant inactivation of both MAP and other bacteria by copper ions in raw cow's milk, information that could be useful as a tool for MAP control.
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Affiliation(s)
- P Steuer
- Instituto de Medicina Preventiva Veterinaria, Valdivia, Chile.,Facultad de Ciencias Veterinarias, Escuela de Graduados, Valdivia, Chile
| | - C Tejeda
- Instituto de Medicina Preventiva Veterinaria, Valdivia, Chile
| | - O Martinez
- Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Valdivia, Chile
| | | | - N González
- Instituto de Medicina Preventiva Veterinaria, Valdivia, Chile
| | - I R Grant
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - A C G Foddai
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - M T Collins
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI, USA
| | - M Salgado
- Instituto de Medicina Preventiva Veterinaria, Valdivia, Chile
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Foddai ACG, Grant IR. A novel one-day phage-based test for rapid detection and enumeration of viable Mycobacterium avium subsp. paratuberculosis in cows' milk. Appl Microbiol Biotechnol 2020; 104:9399-9412. [PMID: 32970181 PMCID: PMC7567713 DOI: 10.1007/s00253-020-10909-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/10/2020] [Accepted: 09/13/2020] [Indexed: 02/04/2023]
Abstract
Abstract Bacteriophage-based methods for the rapid detection of viable Mycobacterium avium subsp. paratuberculosis (MAP) in veterinary specimens are a recent addition to the Johne’s disease diagnostic toolbox. Here, we report the use of D29 mycobacteriophage-coated tosylactivated paramagnetic beads to capture and concentrate MAP cells from samples (termed phagomagnetic separation, PhMS) and then naturally lyse viable MAP cells (from the inside out) to provide DNA for IS900 qPCR purposes. Transmission electron microscopy confirmed that D29 phages had bound to beads in the correct orientation and that the phage-coated beads captured MAP cells from a suspension. During test optimization, conventional IS900 PCR results were used to subjectively assess the effect of different phage:bead coating ratios, differing amounts of coated beads during PhMS, optimal incubation time post-PhMS to obtain maximal MAP DNA, and the potential benefit of a brief heat shock (55 °C/1 min) prior to IS900 TaqMan qPCR. The limit of detection 50% (LOD50%) of the optimised PhMS-qPCR assay was 10.00 MAP cells/50 ml milk (95% CI 1.20–82.83). Finally, in order to demonstrate the new assay’s ability to detect viable MAP in naturally contaminated milk, bulk tank milk samples from 100 dairy farms were tested. Forty-nine (49%) of these tested PhMS-qPCR-positive, with viable MAP numbers detected ranging from 3–126 MAP/50 ml. The novel PhMS-qPCR assay is a sensitive, specific and easy-to-apply phage-based assay for viable MAP, with potential application for milk surveillance or diagnosis of Johne’s disease. Key points • Phage-coated magnetic beads could capture, concentrate and lyse MAP cells from milk. • PhMS-qPCR assay proved to be a rapid, sensitive and specific test for viable MAP. • A potential application of PhMS-qPCR assay for milk surveillance was demonstrated.
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Affiliation(s)
- Antonio C G Foddai
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, Northern Ireland, BT9 5DL, UK
| | - Irene R Grant
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, Northern Ireland, BT9 5DL, UK.
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Foddai ACG, Grant IR. Methods for detection of viable foodborne pathogens: current state-of-art and future prospects. Appl Microbiol Biotechnol 2020; 104:4281-4288. [PMID: 32215710 PMCID: PMC7190587 DOI: 10.1007/s00253-020-10542-x] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 12/21/2022]
Abstract
The ability to rapidly detect viable pathogens in food is important for public health and food safety reasons. Culture-based detection methods, the traditional means of demonstrating microbial viability, tend to be laborious, time consuming and slow to provide results. Several culture-independent methods to detect viable pathogens have been reported in recent years, including both nucleic acid-based (PCR combined with use of cell viability dyes or reverse-transcriptase PCR to detect messenger RNA) and phage-based (plaque assay or phage amplification and lysis plus PCR/qPCR, immunoassay or enzymatic assay to detect host DNA, progeny phages or intracellular components) methods. Some of these newer methods, particularly phage-based methods, show promise in terms of speed, sensitivity of detection and cost compared with culture for food testing. This review provides an overview of these new approaches and their food testing applications, and discusses their current limitations and future prospects in relation to detection of viable pathogens in food. KEY POINTS: • Cultural methods may be 'gold standard' for assessing viability of pathogens, but they are too slow. • Nucleic acid-based methods offer speed of detection but not consistently proof of cell viability. • Phage-based methods appear to offer best alternative to culture for detecting viable pathogens.
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Affiliation(s)
- Antonio C G Foddai
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK
| | - Irene R Grant
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK.
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Grant IR, Foddai ACG, Tarrant JC, Kunkel B, Hartmann FA, McGuirk S, Hansen C, Talaat AM, Collins MT. Viable Mycobacterium avium ssp. paratuberculosis isolated from calf milk replacer. J Dairy Sci 2017; 100:9723-9735. [PMID: 28987590 DOI: 10.3168/jds.2017-13154] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 08/19/2017] [Indexed: 12/31/2022]
Abstract
When advising farmers on how to control Johne's disease in an infected herd, one of the main recommendations is to avoid feeding waste milk to calves and instead feed calf milk replacer (CMR). This advice is based on the assumption that CMR is free of viable Mycobacterium avium ssp. paratuberculosis (MAP) cells, an assumption that has not previously been challenged. We tested commercial CMR products (n = 83) obtained from dairy farms around the United States by the peptide-mediated magnetic separation (PMS)-phage assay, PMS followed by liquid culture (PMS-culture), and direct IS900 quantitative PCR (qPCR). Conventional microbiological analyses for total mesophilic bacterial counts, coliforms, Salmonella, coagulase-negative staphylococci, streptococci, nonhemolytic Corynebacterium spp., and Bacillus spp. were also performed to assess the overall microbiological quality of the CMR. Twenty-six (31.3%) of the 83 CMR samples showed evidence of the presence of MAP. Seventeen (20.5%) tested positive for viable MAP by the PMS-phage assay, with plaque counts ranging from 6 to 1,212 pfu/50 mL of reconstituted CMR (average 248.5 pfu/50 mL). Twelve (14.5%) CMR samples tested positive for viable MAP by PMS-culture; isolates from all 12 of these samples were subsequently confirmed by whole-genome sequencing to be different cattle strains of MAP. Seven (8.4%) CMR samples tested positive for MAP DNA by IS900 qPCR. Four CMR samples tested positive by both PMS-based tests and 5 CMR samples tested positive by IS900 qPCR plus one or other of the PMS-based tests, but only one CMR sample tested positive by all 3 MAP detection tests applied. All conventional microbiology results were within current standards for whole milk powders. A significant association existed between higher total bacterial counts and presence of viable MAP indicated by either of the PMS-based assays. This represents the first published report of the isolation of viable MAP from CMR. Our findings raise concerns about the potential ability of MAP to survive manufacture of dried milk-based products.
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Affiliation(s)
- Irene R Grant
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom BT9 7BL.
| | - Antonio C G Foddai
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom BT9 7BL
| | | | - Brenna Kunkel
- Department of Pathobiological Sciences, Madison 53706
| | - Faye A Hartmann
- Clinical Microbiology Laboratory, University of Wisconsin Veterinary Care, Madison 53706
| | - Sheila McGuirk
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison 53706
| | | | - Adel M Talaat
- Department of Pathobiological Sciences, Madison 53706
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Foddai ACG, Grant IR, Dean M. Efficacy of Instant Hand Sanitizers against Foodborne Pathogens Compared with Hand Washing with Soap and Water in Food Preparation Settings: A Systematic Review. J Food Prot 2016; 79:1040-54. [PMID: 27296611 DOI: 10.4315/0362-028x.jfp-15-492] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hands can be a vector for transmitting pathogenic microorganisms to foodstuffs and drinks, and to the mouths of susceptible hosts. Hand washing is the primary barrier to prevent transmission of enteric pathogens via cross-contamination from infected persons. Conventional hand washing involves the use of water, soap, and friction to remove dirt and microorganisms. The availability of hand sanitizing products for use when water and soap are unavailable has increased in recent years. The aim of this systematic review was to collate scientific information on the efficacy of hand sanitizers compared with washing hands with soap and water for the removal of foodborne pathogens from the hands of food handlers. An extensive literature search was carried out using three electronic databases: Web of Science, Scopus, and PubMed. Twenty-eight scientific publications were ultimately included in the review. Analysis of this literature revealed various limitations in the scientific information owing to the absence of a standardized protocol for evaluating the efficacy of hand products and variation in experimental conditions. However, despite conflicting results, scientific evidence seems to support the historical skepticism about the use of waterless hand sanitizers in food preparation settings. Water and soap appear to be more effective than waterless products for removal of soil and microorganisms from hands. Alcohol-based products achieve rapid and effective inactivation of various bacteria, but their efficacy is generally lower against nonenveloped viruses. The presence of food debris significantly affects the microbial inactivation rate of hand sanitizers.
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Affiliation(s)
- Antonio C G Foddai
- Department of Life Sciences, School of Health and Life Sciences, Glasgow Caledonian University, Cowcaddens Road, Glasgow G4 0BA, Scotland, UK
| | - Irene R Grant
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast BT9 5BN, Northern Ireland, UK
| | - Moira Dean
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast BT9 5BN, Northern Ireland, UK.
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