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Lu TH, Chen CY, Wang WM, Liao CM. One Health-based management for sustainably mitigating tetracycline-resistant Aeromonas hydrophila-induced health risk. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 349:123943. [PMID: 38599271 DOI: 10.1016/j.envpol.2024.123943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/17/2024] [Accepted: 04/07/2024] [Indexed: 04/12/2024]
Abstract
Aeromonas hydrophila has ability to spread tetracycline resistance (tetR) under stresses of oxytetracycline (OTC), one of the most important antibiotics in aquaculture industry. Even though environmental reservoir of Aeromonas allows it to be at interfaces across One Health components, a robust modelling framework for rigorously assessing health risks is currently lacking. We proposed a One Health-based approach and leveraged recent advances in quantitative microbial risk assessment appraised by available dataset to interpret interactions at the human-animal-environment interfaces in various exposure scenarios. The dose-response models were constructed considering the effects on mortality for aquaculture species and tetR genes transfer for humans. A scenario-specific risk assessment on pond species-associated A. hydrophila infection and human gut-associated tetR genes transfer was examined. Risk-based control strategies were involved to test their effectiveness. We showed that farmed shrimp exposed to tetracycline-resistant A. hydrophila in OTC-contaminated water experienced higher infection risk (relative risk: 1.25-1.34). The tetR genes transfer risk for farmers in shrimp ponds (∼2 × 10-4) and swimmers in coastal areas (∼4 × 10-6) during autumn exceeded acceptable risk (10-6). This cautionary finding underscores the importance of accounting for monitoring, assessing, and mitigating occupational health hazards among workers in shrimp farming sectors within future One Health-based strategies for managing water infection risks. We recommend that OTC emission rate together with A. hydrophila concentration should be reduced by up to 70-99% to protect human, farmed shrimp, and environmental health. Our predictive framework can be adopted for other systems and be used as a "risk detector" for assessing tetR-related health risks that invoke potential risk management on addressing sustainable mitigation on offsetting residual OTC emission and tetR genes spread in a species-human-environmental health system.
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Affiliation(s)
- Tien-Hsuan Lu
- Department of Science Education and Application, National Taichung University of Education, Taichung, 403514, Taiwan, ROC.
| | - Chi-Yun Chen
- Department of Environmental and Global Health, College of Public Health and Health Professions, University of Florida, Gainesville, FL, 32610, USA; Center for Environmental and Human Toxicology, University of Florida, FL, 32608, USA
| | - Wei-Min Wang
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, 106319, Taiwan, ROC
| | - Chung-Min Liao
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, 106319, Taiwan, ROC
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Javed MQ, Kovalchuk I, Yevtushenko D, Yang X, Stanford K. Relationship between Desiccation Tolerance and Biofilm Formation in Shiga Toxin-Producing Escherichia coli. Microorganisms 2024; 12:243. [PMID: 38399647 PMCID: PMC10891874 DOI: 10.3390/microorganisms12020243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/12/2024] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
Shiga toxin-producing Escherichia coli (STEC) is a major concern in the food industry and requires effective control measures to prevent foodborne illnesses. Previous studies have demonstrated increased difficulty in the control of biofilm-forming STEC. Desiccation, achieved through osmotic stress and water removal, has emerged as a potential antimicrobial hurdle. This study focused on 254 genetically diverse E. coli strains collected from cattle, carcass hides, hide-off carcasses, and processing equipment. Of these, 141 (55.51%) were STEC and 113 (44.48%) were generic E. coli. The biofilm-forming capabilities of these isolates were assessed, and their desiccation tolerance was investigated to understand the relationships between growth temperature, relative humidity (RH), and bacterial survival. Only 28% of the STEC isolates had the ability to form biofilms, compared to 60% of the generic E. coli. Stainless steel surfaces were exposed to different combinations of temperature (0 °C or 35 °C) and relative humidity (75% or 100%), and the bacterial attachment and survival rates were measured over 72 h and compared to controls. The results revealed that all the strains exposed to 75% relative humidity (RH) at any temperature had reduced growth (p < 0.001). In contrast, 35 °C and 100% RH supported bacterial proliferation, except for isolates forming the strongest biofilms. The ability of E. coli to form a biofilm did not impact growth reduction at 75% RH. Therefore, desiccation treatment at 75% RH at temperatures of 0 °C or 35 °C holds promise as a novel antimicrobial hurdle for the removal of biofilm-forming E. coli from challenging-to-clean surfaces and equipment within food processing facilities.
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Affiliation(s)
- Muhammad Qasim Javed
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (M.Q.J.); (I.K.); (D.Y.)
| | - Igor Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (M.Q.J.); (I.K.); (D.Y.)
| | - Dmytro Yevtushenko
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (M.Q.J.); (I.K.); (D.Y.)
| | - Xianqin Yang
- Agriculture and Agri-Food Canada, Lacombe, AB T4L 1V7, Canada;
| | - Kim Stanford
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada; (M.Q.J.); (I.K.); (D.Y.)
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Dankwa EA, Brouwer AF, Donnelly CA. Structural identifiability of compartmental models for infectious disease transmission is influenced by data type. Epidemics 2022; 41:100643. [PMID: 36308994 PMCID: PMC9772104 DOI: 10.1016/j.epidem.2022.100643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 09/05/2022] [Accepted: 10/14/2022] [Indexed: 12/29/2022] Open
Abstract
If model identifiability is not confirmed, inferences from infectious disease transmission models may not be reliable, so they might result in misleading recommendations. Structural identifiability analysis characterises whether it is possible to obtain unique solutions for all unknown model parameters, given the model structure. In this work, we studied the structural identifiability of some typical deterministic compartmental models for infectious disease transmission, focusing on the influence of the data type considered as model output on the identifiability of unknown model parameters, including initial conditions. We defined 26 model versions, each having a unique combination of underlying compartmental structure and data type(s) considered as model output(s). Four compartmental model structures and three common data types in disease surveillance (incidence, prevalence and detected vector counts) were studied. The structural identifiability of some parameters varied depending on the type of model output. In general, models with multiple data types as outputs had more structurally identifiable parameters, than did models with a single data type as output. This study highlights the importance of a careful consideration of data types as an integral part of the inference process with compartmental infectious disease transmission models.
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Affiliation(s)
- Emmanuelle A Dankwa
- Department of Statistics, University of Oxford, 24-29 St Giles', Oxford, United Kingdom
| | - Andrew F Brouwer
- Department of Epidemiology, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029, USA
| | - Christl A Donnelly
- Department of Statistics, University of Oxford, 24-29 St Giles', Oxford, United Kingdom; Department of Infectious Disease Epidemiology, Faculty of Medicine, School of Public Health, Imperial College London, United Kingdom.
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AbdelMassih A, Sedky A, Shalaby A, Shalaby AF, Yasser A, Mohyeldin A, Amin B, Saleheen B, Osman D, Samuel E, Abdelfatah E, Albustami E, ElGhamry F, Khaled H, Amr H, Gaber H, Makhlouf I, Abdeldayem J, El-Beialy JW, Milad K, El Sharkawi L, Abosenna L, Safi MG, AbdelKareem M, Gaber M, Elkady M, Ihab M, AbdelRaouf N, Khaled R, Shalata R, Mahgoub R, Jamal S, El Hawary SED, ElRashidy S, El Shorbagy S, Gerges T, Kassem Y, Magdy Y, Omar Y, Shokry Y, Kamel A, Hozaien R, El-Husseiny N, El Shershaby M. From HIV to COVID-19, Molecular mechanisms of pathogens' trade-off and persistence in the community, potential targets for new drug development. BULLETIN OF THE NATIONAL RESEARCH CENTRE 2022; 46:194. [PMID: 35818410 PMCID: PMC9258762 DOI: 10.1186/s42269-022-00879-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND On the staggering emergence of the Omicron variant, numerous questions arose about the evolution of virulence and transmissibility in microbes. MAIN BODY OF THE ABSTRACT The trade-off hypothesis has long speculated the exchange of virulence for the sake of superior transmissibility in a wide array of pathogens. While this certainly applies to the case of the Omicron variant, along with influenza virus, various reports have been allocated for an array of pathogens such as human immunodeficiency virus (HIV), malaria, hepatitis B virus (HBV) and tuberculosis (TB). The latter abide to another form of trade-off, the invasion-persistence trade-off. In this study, we aim to explore the molecular mechanisms and mutations of different obligate intracellular pathogens that attenuated their more morbid characters, virulence in acute infections and invasion in chronic infections. SHORT CONCLUSION Recognizing the mutations that attenuate the most morbid characters of pathogens such as virulence or persistence can help in tailoring new therapies for such pathogens. Targeting macrophage tropism of HIV by carbohydrate-binding agents, or targeting the TMPRSS2 receptors to prevent pulmonary infiltrates of COVID-19 is an example of how important is to recognize such genetic mechanisms.
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Affiliation(s)
- Antoine AbdelMassih
- Pediatric Department, Pediatric Cardiology Unit, Faculty of Medicine, Cairo University Children Hospital, Cairo University, Kasr Al Ainy Street, Cairo, 12411 Egypt
| | - Abrar Sedky
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Shalaby
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - AlAmira-Fawzia Shalaby
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Alia Yasser
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Aya Mohyeldin
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Basma Amin
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Basma Saleheen
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Dina Osman
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Elaria Samuel
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Emmy Abdelfatah
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Eveen Albustami
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Farida ElGhamry
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Habiba Khaled
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hana Amr
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hanya Gaber
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ismail Makhlouf
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Janna Abdeldayem
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Karim Milad
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Laila El Sharkawi
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Lina Abosenna
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Madonna G. Safi
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mariam AbdelKareem
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Marwa Gaber
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mirna Elkady
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed Ihab
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nora AbdelRaouf
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rawan Khaled
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Reem Shalata
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rudayna Mahgoub
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Sarah Jamal
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Seif El-Din El Hawary
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Shady ElRashidy
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Sherouk El Shorbagy
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Tony Gerges
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Yara Kassem
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Yasmeen Magdy
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Yasmin Omar
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Yasmine Shokry
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Aya Kamel
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rafeef Hozaien
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Nadine El-Husseiny
- Faculty of Dentistry, Cairo University, Cairo, Egypt
- Pixagon Graphic Design Agency, Cairo, Egypt
| | - Meryam El Shershaby
- Internship Research Program (Research Accessibility Team), Faculty of Medicine, Cairo University, Cairo, Egypt
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Li F, Xiong XS, Yang YY, Wang JJ, Wang MM, Tang JW, Liu QH, Wang L, Gu B. Effects of NaCl Concentrations on Growth Patterns, Phenotypes Associated With Virulence, and Energy Metabolism in Escherichia coli BW25113. Front Microbiol 2021; 12:705326. [PMID: 34484145 PMCID: PMC8415458 DOI: 10.3389/fmicb.2021.705326] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/21/2021] [Indexed: 12/02/2022] Open
Abstract
According to the sit-and-wait hypothesis, long-term environmental survival is positively correlated with increased bacterial pathogenicity because high durability reduces the dependence of transmission on host mobility. Many indirectly transmitted bacterial pathogens, such as Mycobacterium tuberculosis and Burkhoderia pseudomallei, have high durability in the external environment and are highly virulent. It is possible that abiotic stresses may activate certain pathways or the expressions of certain genes, which might contribute to bacterial durability and virulence, synergistically. Therefore, exploring how bacterial phenotypes change in response to environmental stresses is important for understanding their potentials in host infections. In this study, we investigated the effects of different concentrations of salt (sodium chloride, NaCl), on survival ability, phenotypes associated with virulence, and energy metabolism of the lab strain Escherichia coli BW25113. In particular, we investigated how NaCl concentrations influenced growth patterns, biofilm formation, oxidative stress resistance, and motile ability. In terms of energy metabolism that is central to bacterial survival, glucose consumption, glycogen accumulation, and trehalose content were measured in order to understand their roles in dealing with the fluctuation of osmolarity. According to the results, trehalose is preferred than glycogen at high NaCl concentration. In order to dissect the molecular mechanisms of NaCl effects on trehalose metabolism, we further checked how the impairment of trehalose synthesis pathway (otsBA operon) via single-gene mutants influenced E. coli durability and virulence under salt stress. After that, we compared the transcriptomes of E. coli cultured at different NaCl concentrations, through which differentially expressed genes (DEGs) and differential pathways with statistical significance were identified, which provided molecular insights into E. coli responses to NaCl concentrations. In sum, this study explored the in vitro effects of NaCl concentrations on E. coli from a variety of aspects and aimed to facilitate our understanding of bacterial physiological changes under salt stress, which might help clarify the linkages between bacterial durability and virulence outside hosts under environmental stresses.
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Affiliation(s)
- Fen Li
- Medical Technology School of Xuzhou Medical University, Xuzhou, China
| | - Xue-Song Xiong
- Medical Technology School of Xuzhou Medical University, Xuzhou, China
| | - Ying-Ying Yang
- School of Life Sciences, Xuzhou Medical University, Xuzhou, China
| | - Jun-Jiao Wang
- Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, China
| | - Meng-Meng Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Xuzhou, China.,Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jia-Wei Tang
- Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, China
| | - Qing-Hua Liu
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Taipa, China
| | - Liang Wang
- Department of Bioinformatics, School of Medical Informatics and Engineering, Xuzhou Medical University, Xuzhou, China.,Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Bing Gu
- Medical Technology School of Xuzhou Medical University, Xuzhou, China.,Laboratory Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
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Durso LM, Gilley JE, Miller DN. Differential Survival of Non-O157 Shiga Toxigenic Escherichia coli in Simulated Cattle Feedlot Runoff. Foodborne Pathog Dis 2021; 18:771-777. [PMID: 34242513 DOI: 10.1089/fpd.2021.0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Environmental survival time is important when evaluating adverse health outcomes from foodborne pathogens. Although outbreaks associated with manure-impacted irrigation or runoff water are relatively infrequent, their broad scope, regulatory importance, and severe health outcomes highlight the need to better understand the environmental survival of manure-borne pathogens. Shiga toxigenic Escherichia coli (STEC) are excreted in feces and persist in the environment until they die or recolonize a new host. Surface waters contaminated with manure-borne STEC can infect humans through drinking and recreational water use or irrigated crops that are minimally cooked. In this study, manure-impacted water microcosms mimicking beef cattle feedlot runoff were used to assess survival of STEC strains representing seven STEC serotypes (O26, O45, O103, O111, O121, O145, and O157) and persistence of target O antigen genes. Microcosms were sampled over the course of 1 year, and the entire experiment was repeated in a second year. Culture and polymerase chain reaction (PCR)-based techniques were used for detection and enumeration. Serotype-specific survival results were observed. Both STEC O26 and O45 declined slowly and remained culturable at 24 months. In contrast, STEC O121 and O145 decreased rapidly (-0.84 and -1.99 log10 abundance per month, respectively) and were unculturable by months 4 and 5, but detectable by PCR for a mean of 4.5 and 8.3 months, respectively. STEC O103, O111, and O157 remained culturable for a mean of 11.6, 5.5, and 15 months and detectable by PCR for a mean of 12, 13.8, and 18.6 months after inoculation, respectively. Results document that some STEC serotypes have the biological potential to survive in manure-impacted waters for extended periods of time when competing microflora are eliminated. Serotype-specific differences in survival of target bacteria and persistence of target genes were observed in this sample set, with STEC O26 and O45 strains appearing the most robust in these microcosm studies.
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