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Turkyilmaz Ucar O, Naiboglu S, Sarikavak SK, Ulas S, Turan I, Ayaz A, Al S, Gokmirza Ozdemir P, Celiksoy MH, Aydogmus C. Salmonella Osteomyelitis Due to IRAK-4 Deficiency. J Pediatr Hematol Oncol 2024; 46:275-276. [PMID: 38857180 DOI: 10.1097/mph.0000000000002887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 04/10/2024] [Indexed: 06/12/2024]
Affiliation(s)
- Ozge Turkyilmaz Ucar
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Sezin Naiboglu
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Sibel K Sarikavak
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Selami Ulas
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Isilay Turan
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Akif Ayaz
- Department Medical Genetics, Istanbul Medipol University Faculty of Medicine Istanbul, Turkey
| | - Serdar Al
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Pinar Gokmirza Ozdemir
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Mehmet H Celiksoy
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
| | - Cigdem Aydogmus
- Department Pediatric Allergy and Immunology, Istanbul Basaksehir Cam and Sakura City Hospital
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Patà Z, Faré PB, Lava SAG, Milani GP, Bianchetti MG, Janett S, Hunjan I, Kottanattu L. Nontyphoidal Salmonella Outbreaks Associated With Chocolate Consumption: A Systematic Review. Pediatr Infect Dis J 2024; 43:420-424. [PMID: 38285510 PMCID: PMC11003406 DOI: 10.1097/inf.0000000000004252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/16/2023] [Indexed: 01/31/2024]
Abstract
BACKGROUND A large, cross-border outbreak of nontyphoidal salmonellosis connected to chocolate product consumption was recently reported. This occurrence motivated us to conduct a comprehensive review of existing literature concerning outbreaks of nontyphoidal salmonellosis associated with chocolate consumption. METHODS We performed a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines (PROSPERO CRD42022369023) in 3 databases: U.S. National Library of Medicine, Web of Science and Excerpta Medica. Google Scholar and the bibliography of each identified report were also screened. Eligible were articles published after 1970, describing outbreaks of more than 10 patients with a nontyphoidal salmonellosis associated with chocolate consumption. RESULTS Twenty-three articles were included, which described 12 outbreaks involving a total of 3266 patients. All outbreaks occurred in high-income countries: 1 was limited to 1 city, 6 involved 1 country and the remaining 5 involved 2 or more countries. Six outbreaks peaked in winter, 3 in autumn, 2 in spring and 1 in summer. Children were mainly affected. No predominant serotype was identified. CONCLUSIONS Our data documents that chocolate is an optimal medium for the transmission of nontyphoidal salmonellosis. A connected worldwide reporting system including high-income, middle-income and low-income countries is crucial to detect infectious diseases outbreaks in an early phase and avoid their spread.
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Affiliation(s)
- Zacharie Patà
- From the Family Medicine Institute, Faculty of Biomedical Sciences, Università della Svizzera Italiana
| | - Pietro B. Faré
- Department of Internal Medicine, Ente Ospedaliero Cantonale, Lugano, Switzerland
- Department of infectious diseases, University Hospital Zurich, Zurich, Switzerland
| | - Sebastiano A. G. Lava
- Pediatric Cardiology Unit, Department of Pediatrics, Centre Hospitalier Universitaire Vaudois, University of Lausanne, Lausanne, Switzerland
- ¶Clinical Pharmacology and Therapeutics Group, University College London, London, United Kingdom
| | - Gregorio P. Milani
- Pediatric Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Mario G. Bianchetti
- From the Family Medicine Institute, Faculty of Biomedical Sciences, Università della Svizzera Italiana
| | - Simone Janett
- Sleep Center, Neurocenter of the Southern Switzerland, Ente Ospedaliero Cantonale
| | - Isabella Hunjan
- From the Family Medicine Institute, Faculty of Biomedical Sciences, Università della Svizzera Italiana
| | - Lisa Kottanattu
- Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
- Pediatric Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
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Ladd-Wilson SG, Yeargain K, Myoda SP, Samadpour M, Morey K, Cieslak PR. Notes from the Field: Neonatal Salmonellosis Associated with Backyard Poultry - Oregon, November 2023. MMWR. MORBIDITY AND MORTALITY WEEKLY REPORT 2024; 73:321-322. [PMID: 38602891 PMCID: PMC11008787 DOI: 10.15585/mmwr.mm7314a6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
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Lee TA, Chen CY, Chang YJ, Guo BC, Lin WY, Wu CH, Wu HP. Presentations of Children with Suspected Sepsis Caused by Acute Infectious Diarrhea in the Pediatric Emergency Department. CHILDREN (BASEL, SWITZERLAND) 2024; 11:171. [PMID: 38397283 PMCID: PMC10887777 DOI: 10.3390/children11020171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Acute infectious diarrhea is a common cause of hospitalization in children. Hence, early identification of acute bacterial gastroenteritis with suspected sepsis in pediatric emergency departments (EDs) is important. This study aimed to describe the clinical spectrum and initial characteristics of children who were presented to a pediatric ED with acute infectious diarrhea and suspected sepsis. METHODS Between April 2020 to March 2021, children with clinical diagnoses of acute bacterial colitis and suspected sepsis who were admitted to the pediatric ED were prospectively enrolled. The following data were obtained and compared between different age groups of children: including demographics, presentation, laboratory tests, culture results, treatment modalities, complications, and short-term outcomes. RESULTS A total of 105 patients (70 males and 35 females; mean age: 3.75 ± 3.52 years) were enrolled in this study. Of them, 89 (84.8%) patients were <6 years of age, and 80 (76.2%) patients required hospitalization for a duration of 4.7 ± 2.08 days. C-reactive protein (CRP) and procalcitonin (PCT) levels were significantly higher in the admission (both p < 0.001) and anti-biotic treatment groups (both p < 0.001). Salmonella enteritidis was the most common organism cultured from the stool and blood samples (39 of 91 (38.5%) and 2 of 105 (1.9%), respectively). CONCLUSIONS The primary causative organism of acute infectious diarrhea identified in this study was S. enteritidis. Age and elevated serum CRP or PCT levels could be important factors in the decisions of emergency physicians regarding hospitalization and antibiotic therapies for pediatric acute infectious diarrhea.
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Affiliation(s)
- Tai-An Lee
- Department of Emergency Medicine, Chang Bing Show Chwan Memorial Hospital, Changhua 50544, Taiwan;
| | - Chun-Yu Chen
- Department of Emergency Medicine, Tungs’ Taichung MetroHarbor Hospital, Taichung 43503, Taiwan;
- Department of Nursing, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli 35664, Taiwan
| | - Yu-Jun Chang
- Laboratory of Epidemiology and Biostastics, Changhua Christian Hospital, Changhua 50006, Taiwan;
| | - Bei-Cyuan Guo
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan;
| | - Wen-Ya Lin
- Department of Pediatric Emergency Medicine, Taichung Veteran General Hospital, Taichung 43503, Taiwan;
- Department of Pediatrics, Taichung Veteran General Hospital, Taichung 43503, Taiwan
| | - Chao-Hsin Wu
- Department of Emergency Medicine, Tungs’ Taichung MetroHarbor Hospital, Taichung 43503, Taiwan;
- Department of Post-Baccalaureate Medicine, National Chung Hsing University, Taichung 40202, Taiwan
| | - Han-Ping Wu
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Pediatrics, Chiayi Chang Gung Memorial Hospital, Chiayi 61363, Taiwan
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Lamichhane B, Mawad AMM, Saleh M, Kelley WG, Harrington PJ, Lovestad CW, Amezcua J, Sarhan MM, El Zowalaty ME, Ramadan H, Morgan M, Helmy YA. Salmonellosis: An Overview of Epidemiology, Pathogenesis, and Innovative Approaches to Mitigate the Antimicrobial Resistant Infections. Antibiotics (Basel) 2024; 13:76. [PMID: 38247636 PMCID: PMC10812683 DOI: 10.3390/antibiotics13010076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/24/2023] [Accepted: 01/10/2024] [Indexed: 01/23/2024] Open
Abstract
Salmonella is a major foodborne pathogen and a leading cause of gastroenteritis in humans and animals. Salmonella is highly pathogenic and encompasses more than 2600 characterized serovars. The transmission of Salmonella to humans occurs through the farm-to-fork continuum and is commonly linked to the consumption of animal-derived food products. Among these sources, poultry and poultry products are primary contributors, followed by beef, pork, fish, and non-animal-derived food such as fruits and vegetables. While antibiotics constitute the primary treatment for salmonellosis, the emergence of antibiotic resistance and the rise of multidrug-resistant (MDR) Salmonella strains have highlighted the urgency of developing antibiotic alternatives. Effective infection management necessitates a comprehensive understanding of the pathogen's epidemiology and transmission dynamics. Therefore, this comprehensive review focuses on the epidemiology, sources of infection, risk factors, transmission dynamics, and the host range of Salmonella serotypes. This review also investigates the disease characteristics observed in both humans and animals, antibiotic resistance, pathogenesis, and potential strategies for treatment and control of salmonellosis, emphasizing the most recent antibiotic-alternative approaches for infection control.
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Affiliation(s)
- Bibek Lamichhane
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - Asmaa M. M. Mawad
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mohamed Saleh
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - William G. Kelley
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - Patrick J. Harrington
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - Cayenne W. Lovestad
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - Jessica Amezcua
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - Mohamed M. Sarhan
- Faculty of Pharmacy, King Salman International University (KSIU), Ras Sudr 8744304, Egypt
| | - Mohamed E. El Zowalaty
- Veterinary Medicine and Food Security Research Group, Medical Laboratory Sciences Program, Faculty of Health Sciences, Abu Dhabi Women’s Campus, Higher Colleges of Technology, Abu Dhabi 41012, United Arab Emirates
| | - Hazem Ramadan
- Hygiene and Zoonoses Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Melissa Morgan
- Department of Animal and Food Sciences, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - Yosra A. Helmy
- Department of Veterinary Science, Martin-Gatton College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
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Aruta MG, Lari E, De Simone D, Semplici B, Semplici C, Dale H, Chirwa E, Kadwala I, Mbewe M, Banda H, Iturriza-Gomara M, Gordon M, Nyirenda T, Piu P, Pizza M, Berlanda Scorza F, Grappi S, Canals R, Rossi O. Characterization of Enzyme-Linked Immunosorbent Assay (ELISA) for Quantification of Antibodies against Salmonella Typhimurium and Salmonella Enteritidis O-Antigens in Human Sera. BIOTECH 2023; 12:54. [PMID: 37606441 PMCID: PMC10443281 DOI: 10.3390/biotech12030054] [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: 07/18/2023] [Revised: 08/04/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023] Open
Abstract
Nontyphoidal Salmonella (NTS) is a leading cause of morbidity and mortality caused by enteric pathogens worldwide in both children and adults, and vaccines are not yet available. The measurement of antigen-specific antibodies in the sera of vaccinated or convalescent individuals is crucial to understand the incidence of disease and the immunogenicity of vaccine candidates. A solid and standardized assay used to determine the level of specific anti-antigens IgG is therefore of paramount importance. In this work, we presented the characterization of a customized enzyme-linked immunosorbent assay (ELISA) with continuous readouts and a standardized definition of EU/mL. We assessed various performance parameters: standard curve accuracy, dilutional linearity, intermediate precision, specificity, limits of blanks, and quantification. The simplicity of the assay, its high sensitivity and specificity coupled with its low cost and the use of basic consumables and instruments without the need of high automation makes it suitable for transfer and application to different laboratories, including resource-limiting settings where the disease is endemic. This ELISA is, therefore, fit for purpose to be used for quantification of antibodies against Salmonella Typhimurium and Salmonella Enteritidis O-antigens in human samples, both for vaccine clinical trials and large sero-epidemiological studies.
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Affiliation(s)
- Maria Grazia Aruta
- GSK Vaccines Institute for Global Health (GVGH) S.r.l., 53100 Siena, Italy; (M.G.A.); (D.D.S.); (M.I.-G.); (M.P.); (F.B.S.)
| | - Elisa Lari
- VisMederi S.r.l., 53100 Siena, Italy; (E.L.); (B.S.); (C.S.); (P.P.); (S.G.)
| | - Daniele De Simone
- GSK Vaccines Institute for Global Health (GVGH) S.r.l., 53100 Siena, Italy; (M.G.A.); (D.D.S.); (M.I.-G.); (M.P.); (F.B.S.)
| | - Bianca Semplici
- VisMederi S.r.l., 53100 Siena, Italy; (E.L.); (B.S.); (C.S.); (P.P.); (S.G.)
| | - Claudia Semplici
- VisMederi S.r.l., 53100 Siena, Italy; (E.L.); (B.S.); (C.S.); (P.P.); (S.G.)
| | - Helen Dale
- Malawi Liverpool Wellcome Trust Programme, Blantyre 30096, Malawi; (H.D.); (E.C.); (I.K.); (M.M.); (H.B.); (M.G.)
- Pathology Department, Kamuzu University of Health Sciences, Blantyre 312225, Malawi;
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L69 3BX, UK
| | - Esmelda Chirwa
- Malawi Liverpool Wellcome Trust Programme, Blantyre 30096, Malawi; (H.D.); (E.C.); (I.K.); (M.M.); (H.B.); (M.G.)
- Pathology Department, Kamuzu University of Health Sciences, Blantyre 312225, Malawi;
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L69 3BX, UK
| | - Innocent Kadwala
- Malawi Liverpool Wellcome Trust Programme, Blantyre 30096, Malawi; (H.D.); (E.C.); (I.K.); (M.M.); (H.B.); (M.G.)
- Pathology Department, Kamuzu University of Health Sciences, Blantyre 312225, Malawi;
| | - Maurice Mbewe
- Malawi Liverpool Wellcome Trust Programme, Blantyre 30096, Malawi; (H.D.); (E.C.); (I.K.); (M.M.); (H.B.); (M.G.)
- Pathology Department, Kamuzu University of Health Sciences, Blantyre 312225, Malawi;
| | - Happy Banda
- Malawi Liverpool Wellcome Trust Programme, Blantyre 30096, Malawi; (H.D.); (E.C.); (I.K.); (M.M.); (H.B.); (M.G.)
- Pathology Department, Kamuzu University of Health Sciences, Blantyre 312225, Malawi;
| | - Miren Iturriza-Gomara
- GSK Vaccines Institute for Global Health (GVGH) S.r.l., 53100 Siena, Italy; (M.G.A.); (D.D.S.); (M.I.-G.); (M.P.); (F.B.S.)
| | - Melita Gordon
- Malawi Liverpool Wellcome Trust Programme, Blantyre 30096, Malawi; (H.D.); (E.C.); (I.K.); (M.M.); (H.B.); (M.G.)
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L69 3BX, UK
| | - Tonney Nyirenda
- Pathology Department, Kamuzu University of Health Sciences, Blantyre 312225, Malawi;
| | - Pietro Piu
- VisMederi S.r.l., 53100 Siena, Italy; (E.L.); (B.S.); (C.S.); (P.P.); (S.G.)
| | - Mariagrazia Pizza
- GSK Vaccines Institute for Global Health (GVGH) S.r.l., 53100 Siena, Italy; (M.G.A.); (D.D.S.); (M.I.-G.); (M.P.); (F.B.S.)
- Imperial College South Kensington Campus, London SW7 2AZ, UK
| | - Francesco Berlanda Scorza
- GSK Vaccines Institute for Global Health (GVGH) S.r.l., 53100 Siena, Italy; (M.G.A.); (D.D.S.); (M.I.-G.); (M.P.); (F.B.S.)
| | - Silvia Grappi
- VisMederi S.r.l., 53100 Siena, Italy; (E.L.); (B.S.); (C.S.); (P.P.); (S.G.)
| | - Rocío Canals
- GSK Vaccines Institute for Global Health (GVGH) S.r.l., 53100 Siena, Italy; (M.G.A.); (D.D.S.); (M.I.-G.); (M.P.); (F.B.S.)
| | - Omar Rossi
- GSK Vaccines Institute for Global Health (GVGH) S.r.l., 53100 Siena, Italy; (M.G.A.); (D.D.S.); (M.I.-G.); (M.P.); (F.B.S.)
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Aydede Y, Ditzen J. Identifying the regional drivers of influenza-like illness in Nova Scotia, Canada, with dominance analysis. Sci Rep 2023; 13:10114. [PMID: 37344569 DOI: 10.1038/s41598-023-37184-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 06/17/2023] [Indexed: 06/23/2023] Open
Abstract
The spread of viral pathogens is inherently a spatial process. While the temporal aspects of viral spread at the epidemiological level have been increasingly well characterized, the spatial aspects of viral spread are still understudied due to a striking absence of theoretical expectations of how spatial dynamics may impact the temporal dynamics of viral populations. Characterizing the spatial transmission and understanding the factors driving it are important for anticipating local timing of disease incidence and for guiding more informed control strategies. Using a unique data set from Nova Scotia, Canada, the objective of this study is to apply a new novel method that recovers a spatial network of the influenza-like viral spread where the regions in their dominance are identified and ranked. We, then, focus on identifying regional predictors of those dominant regions. Our analysis uncovers 18 key regional drivers among 112 regions, each distinguished by unique community-level vulnerability factors such as demographic and economic characteristics. These findings offer valuable insights for implementing targeted public health interventions and allocating resources effectively.
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Affiliation(s)
| | - Jan Ditzen
- Free University of Bolzano, Bolzano, Italy
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Zhou K, Sun L, Zhang X, Xu X, Mi K, Ma W, Zhang L, Huang L. Salmonella antimicrobials inherited and the non-inherited resistance: mechanisms and alternative therapeutic strategies. Front Microbiol 2023; 14:1176317. [PMID: 37303797 PMCID: PMC10249997 DOI: 10.3389/fmicb.2023.1176317] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/24/2023] [Indexed: 06/13/2023] Open
Abstract
Salmonella spp. is one of the most important foodborne pathogens. Typhoid fever and enteritis caused by Salmonella enterica are associated with 16-33 million infections and 500,000 to 600,000 deaths annually worldwide. The eradication of Salmonella is becoming increasingly difficult because of its remarkable capacity to counter antimicrobial agents. In addition to the intrinsic and acquired resistance of Salmonella, increasing studies indicated that its non-inherited resistance, which commonly mentioned as biofilms and persister cells, plays a critical role in refractory infections and resistance evolution. These remind the urgent demand for new therapeutic strategies against Salmonella. This review starts with escape mechanisms of Salmonella against antimicrobial agents, with particular emphasis on the roles of the non-inherited resistance in antibiotic failure and resistance evolution. Then, drug design or therapeutic strategies that show impressive effects in overcoming Salmonella resistance and tolerance are summarized completely, such as overcoming the barrier of outer membrane by targeting MlaABC system, reducing persister cells by limiting hydrogen sulfide, and applying probiotics or predatory bacteria. Meanwhile, according to the clinical practice, the advantages and disadvantages of above strategies are discussed. Finally, we further analyze how to deal with this tricky problems, thus can promote above novel strategies to be applied in the clinic as soon as possible. We believed that this review will be helpful in understanding the relationships between tolerance phenotype and resistance of Salmonella as well as the efficient control of antibiotic resistance.
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Affiliation(s)
- Kaixiang Zhou
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
| | - Lei Sun
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
| | - Xuehua Zhang
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
| | - Xiangyue Xu
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
| | - Kun Mi
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
| | - Wenjin Ma
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
| | - Lan Zhang
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
| | - Lingli Huang
- Department of Veterinary Medicine Science, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
- National Reference Laboratory of Veterinary Drug Residues (HZAU), Wuhan, Hubei, China
- MOA Key Laboratory for Detection of Veterinary Drug Residues, Wuhan, Hubei, China
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Tian L, Zhong C, He Y, Lu Q, Wang Y, Zhao X, Wei H, Tao X. Preventive of Lacticaseibacillus casei WLCA02 against Salmonella Typhimurium infection via strengthening the intestinal barrier and activating the macrophages. J Funct Foods 2023. [DOI: 10.1016/j.jff.2023.105507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
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10
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Baskaran V, Karthik L. Phages for treatment of Salmonella spp infection. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 200:241-273. [PMID: 37739557 DOI: 10.1016/bs.pmbts.2023.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Salmonella, is one of the bacterial genera having more than 2500 serogroups is one of the most prominent food borne pathogen that is capable of causing disease out breaks among humans and animals. Recent reports clearly shows that this pathogen is evolved and it developed drug resistant towards most of the commercially available antibiotics. In order to overcome this emerging resistance, Bacteriophage therapy is one of the alternative solutions. It is more pathogen specific, high potency, and thereby highly safe for consumption. This chapter discuss about Rapid screening and Detection Methods Associated with Bacteriophage for Salmonella, commercially available phage products and regulatory status, Salmonella endolysins and future prospects of phage therapy.
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Affiliation(s)
- V Baskaran
- R and D, Salem Microbes Private Limited, Salem, Tamil Nadu, India
| | - L Karthik
- R and D, Salem Microbes Private Limited, Salem, Tamil Nadu, India.
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Amoussa AMO, Lagnika L, Jullian V, Chassagne F. Anti-Salmonella activity of plant species in the Benin republic: Artemisia afra and Detarium senegalense with promising in vitro and in vivo activities. Biomed Pharmacother 2023; 158:114119. [PMID: 36521244 DOI: 10.1016/j.biopha.2022.114119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022] Open
Abstract
Non-typhoidal invasive Salmonella (NTiS) diseases are one of the most important zoonoses in the world. This study explored the antipathogenic potential of twenty-four plants used in Benin folk medicine against NTiS diseases. The in vitro antibacterial and antibiofilm activities of ethanolic plant extracts were screened against clinical resistant isolates and ATCC reference strains of Salmonella. Salmonella enterica serovar Typhimurium-infected rat model was used to examine the in vivo antibacterial potential of plant extracts. Of the 24 plants, 18 plants exhibited antibacterial activity against Salmonella enterica strains with minimum inhibitory concentrations (MICs) ranging from 0.156 to 1.25 mg/mL. Anacardium occidentale, Artemisia afra, Detarium microcarpum, Detarium senegalense, and Leucaena leucocephala were the most active plant species. Extracts from A. afra, D. microcarpum, and D. senegalense showed biofilm inhibition greater than 50% against Salmonella clinical isolates. In the rat model of infection, A. afra and D. senegalense extracts were found to have an effective dose of less than 100 mg/kg and to stop the salmonellosis after 10 days of treatment. Additionally, these extracts did not produce any toxic effects in the treated animals. These results indicate clear evidence supporting the anti-Salmonella activity of A. afra and D. senegalense. Further studies are now needed to isolate bioactive compounds and to ensure the safety of these plant species.
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Affiliation(s)
- Abdou Madjid Olatounde Amoussa
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, France; Laboratoire de Biochimie et Substances Naturelles Bioactives, Faculté des Sciences Techniques, Université d'Abomey-Calavi, 04BP0320 Cotonou, Benin.
| | - Latifou Lagnika
- Laboratoire de Biochimie et Substances Naturelles Bioactives, Faculté des Sciences Techniques, Université d'Abomey-Calavi, 04BP0320 Cotonou, Benin
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12
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Chandra HB, Shome A, Sahoo R, Apoorva S, Bhure SK, Mahawar M. Periplasmic methionine sulfoxide reductase (MsrP)-a secondary factor in stress survival and virulence of Salmonella Typhimurium. FEMS Microbiol Lett 2023; 370:fnad063. [PMID: 37403401 PMCID: PMC10653988 DOI: 10.1093/femsle/fnad063] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/06/2023] Open
Abstract
Among others, methionine residues are highly susceptible to host-generated oxidants. Repair of oxidized methionine (Met-SO) residues to methionine (Met) by methionine sulfoxide reductases (Msrs) play a chief role in stress survival of bacterial pathogens, including Salmonella Typhimurium. Periplasmic proteins, involved in many important cellular functions, are highly susceptible to host-generated oxidants. According to location in cell, two types of Msrs, cytoplasmic and periplasmic are present in S. Typhimurium. Owing to its localization, periplasmic Msr (MsrP) might play a crucial role in defending the host-generated oxidants. Here, we have assessed the role of MsrP in combating oxidative stress and colonization of S. Typhimurium. ΔmsrP (mutant strain) grew normally in in-vitro media. In comparison to S. Typhimurium (wild type), mutant strain showed mild hypersensitivity to HOCl and chloramine-T (ChT). Following exposure to HOCl, mutant strain showed almost similar protein carbonyl levels (a marker of protein oxidation) as compared to S. Typhimurium strain. Additionally, ΔmsrP strain showed higher susceptibility to neutrophils than the parent strain. Further, the mutant strain showed very mild defects in survival in mice spleen and liver as compared to wild-type strain. In a nutshell, our results indicate that MsrP plays only a secondary role in combating oxidative stress and colonization of S. Typhimurium.
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Affiliation(s)
- Hari Balaji Chandra
- Division of Biochemistry, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Arijit Shome
- Division of Biochemistry, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Raj Sahoo
- Division of Biochemistry, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - S Apoorva
- Division of Biochemistry, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Sanjeev Kumar Bhure
- Division of Biochemistry, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
| | - Manish Mahawar
- Division of Biochemistry, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122, India
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13
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Development and Characterization of a Luminescence-Based High-Throughput Serum Bactericidal Assay (L-SBA) to Assess Bactericidal Activity of Human Sera against Nontyphoidal Salmonella. Methods Protoc 2022; 5:mps5060100. [PMID: 36548142 PMCID: PMC9783057 DOI: 10.3390/mps5060100] [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: 09/01/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
Salmonella Typhimurium and Salmonella Enteritidis are leading causative agents of invasive nontyphoidal Salmonella (iNTS) disease, which represents one of the major causes of death and morbidity in sub-Saharan Africa, still partially underestimated. Large sero-epidemiological studies are necessary to unravel the burden of disease and guide the introduction of vaccines that are not yet available. Even if no correlate of protection has been determined so far for iNTS, the evaluation of complement-mediated functionality of antibodies generated towards natural infection or elicited upon vaccination may represent a big step towards this achievement. Here we present the setup and the intra-laboratory characterization in terms of repeatability, intermediate precision, linearity, and specificity of a high-throughput luminescence-based serum bactericidal assay (L-SBA). This method could be useful to perform sero-epidemiological studies across iNTS endemic countries and for evaluation of antibodies raised against iNTS vaccine candidates in upcoming clinical trials.
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14
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Khan M, Boyce TG, Joshi A. Term Neonate with Hematochezia. Neoreviews 2022; 23:e849-e851. [PMID: 36450642 DOI: 10.1542/neo.23-12-e849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
| | - Thomas G Boyce
- Department of Pediatrics.,Division of Pediatric Infectious Diseases
| | - Aditya Joshi
- Department of Pediatrics.,Division of Neonatology, Marshfield Clinic Health System, Marshfield, WI
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15
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Hipper TJ, Popek L, Davis RK, Turchi RM, Massey PM, Lege-Matsuura J, Lubell KM, Pechta L, Briseño L, Rose DA, Chatham-Stephens K, Leeb RT, Chernak E. Communication Preferences of Parents and Caregivers of Children and Youth With Special Healthcare Needs During a Hypothetical Infectious Disease Emergency. Health Secur 2022; 20:467-478. [PMID: 36459634 DOI: 10.1089/hs.2022.0033] [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: 12/04/2022] Open
Abstract
Children and youth with special healthcare needs are at risk for severe consequences during infectious disease emergencies. Messages for parents and caregivers from trusted sources, via preferred channels, that contain the information they need, may improve health outcomes for this population. In this mixed methods study, we conducted a survey (N = 297) and 80 semistructured interviews, with 70 caregivers of children and youth and 10 young adults with special healthcare needs, between April 2018 and June 2019 in Pennsylvania. The survey presented 3 scenarios (ie, storm, disease outbreak, radiation event); the interviews included questions about storms and an outbreak. This article addresses only the disease outbreak data from each set. Participants were recruited through convenience samples from an urban tertiary care children's hospital and practices in a statewide medical home network. In this article, we summarize the preferred information sources, channels, and content needs of caregivers of children and youth with special healthcare needs during an infectious disease emergency. Nearly 84% of caregivers reported that they believe their child's doctor is the best source of information. Other preferred sources include medical experts (31%); the US Centers for Disease Control and Prevention (30%); friends, family, and neighbors (21%); and local or state health and emergency management (17%). Pediatric healthcare providers play an important role in providing information to parents and caregivers of children and youth with special healthcare needs during an infectious disease emergency. Public health agencies can establish health communication plans that integrate medical practices and other reliable sources to promote the dissemination of accurate information from trusted messengers.
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Affiliation(s)
- Thomas J Hipper
- Thomas J. Hipper, MSPH, MA, is Associate Director, Center for Public Health Readiness and Communication, and an Assistant Professor, Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, PA
| | - Leah Popek
- Leah Popek, MPH, is Project Coordinator, Center for Public Health Readiness and Communication, Department of Environmental and Occupational Health, Dornsife School of Public Health, Drexel University, Philadelphia, PA
| | - Renee K Davis
- Renee K. Davis, MD, MPH, is Program Coordinator, Department of Community Health and Prevention, Dornsife School of Public Health, Drexel University, Philadelphia, PA
| | - Renee M Turchi
- Renee M. Turchi, MD, MPH, is a Clinical Professor, Dornsife School of Public Health, Drexel University, Philadelphia, PA.,Renee M. Turchi is also a Professor and Chair of Pediatrics, Drexel University College of Medicine, Philadelphia, PA
| | - Philip M Massey
- Philip M. Massey PhD, MPH, is Director and an Associate Professor, Center for Public Health and Technology, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR
| | - Jennifer Lege-Matsuura
- Jennifer Lege-Matsuura, MSLIS, is a Medical Librarian, Drexel University Libraries, Drexel University, Philadelphia, PA
| | - Keri M Lubell
- Keri M. Lubell, PhD, is a Behavioral Scientist, Centers for Disease Control and Prevention, Atlanta, GA
| | - Laura Pechta
- Laura Pechta, PhD, is a Senior Health Communication Specialist, Division of Global Health Protection, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, GA
| | - Lisa Briseño
- Lisa Briseño, MS, is a Health Communication Specialist, Emergency Risk Communication Branch, Division of Emergency Operations, Center for Preparedness and Response, Centers for Disease Control and Prevention, Atlanta, GA
| | - Dale A Rose
- Dale A. Rose, PhD, MSc, is Deputy Director, Division of Bacterial Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA
| | - Kevin Chatham-Stephens
- Kevin Chatham-Stephens, MD, MPH, is Children's Preparedness Unit Lead, Centers for Disease Control and Prevention, Atlanta, GA
| | - Rebecca T Leeb
- Rebecca T. Leeb, PhD, is a Health Scientist/Epidemiologist, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA
| | - Esther Chernak
- Esther Chernak MD, MPH, is Director, Center for Public Health Readiness and Communication, Dornsife School of Public Health, Drexel University, Philadelphia, PA.,Esther Chernak is also a Professor, Department of Medicine, Drexel University College of Medicine, Philadelphia, PA
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16
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Daggett AE, Heston AL, Anderson MB, Qubain LM, Veesenmeyer AF. A Rare Case of Salmonella Osteomyelitis in Immunocompetent Toddler Without Risk Factors. Cureus 2022; 14:e30642. [PMID: 36426317 PMCID: PMC9681674 DOI: 10.7759/cureus.30642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
Salmonella infections are common, though rarely cause disseminated or severe disease in immunocompetent children. We present a case of severe salmonella osteomyelitis and epidural abscess in a patient without significant risk factors. This patient presented over the course of multiple visits with nonspecific symptoms of fever, malaise, and eventual joint pain. As symptoms progressed, the workup was broadened to find the eventual source of infection.
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17
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Clinical Features, Antimicrobial Resistance, and Serogroups of Nontyphoidal Salmonella Isolated From Infants Less Than 3 Months Old in the Recent Decade. Pediatr Infect Dis J 2022; 41:813-818. [PMID: 35939611 DOI: 10.1097/inf.0000000000003656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Antibiotic treatment is indicated for infants with nontyphoidal Salmonella (NTS) enterocolitis. However, whether antimicrobial resistance (AMR) is a problem among young infants is unknown. This study investigated the characteristics of NTS infections in young infants. METHODS Infants less than 3 months old with NTS infections were enrolled and grouped into 2 cohorts (diagnosed 2010-2015 or 2016-2021). Salmonella isolated from blood or cerebrospinal fluid was defined as invasive NTS (iNTS). The clinical features, AMR and serogroups were compared between cohorts. RESULTS In total, 102 young infants had NTS infections, 6.9% of which were iNTS. Infants with iNTS infections were younger, hospitalized longer, and received longer antibiotic courses. More than half of cases of iNTS were resistant to ciprofloxacin, ceftriaxone and greater than or equal to 3 antibiotics. iNTS was mainly observed in Salmonella groups C2 and E. Over the past decade, group B (44%), group E (26%) and group C2 (16%) have been the most common serogroups. NTS significantly increased AMR to ciprofloxacin, ceftriaxone and trimethoprim-sulfamethoxazole, and greater than or equal to 3 antibiotics. Both multidrug resistance and extensive drug resistance in NTS also significantly increased. CONCLUSIONS The serogroups varied with time, and the main causes of iNTS, groups C2 and E, increased over the past decade. The prevalence of AMR also increased, especially for iNTS. Given the low iNTS rate and high AMR, routine antibiotic use among infants with NTS infections between 1 and 3 months old should be reconsidered. Further large-scale research is required to formulate therapeutic strategies.
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18
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Xu J, Lan Y, Wang X, Shang K, Liu X, Wang J, Li J, Yue B, Shao M, Fan Z. Multi-omics analysis reveals the host–microbe interactions in aged rhesus macaques. Front Microbiol 2022; 13:993879. [PMID: 36238598 PMCID: PMC9551614 DOI: 10.3389/fmicb.2022.993879] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/08/2022] [Indexed: 11/13/2022] Open
Abstract
Aging is a complex multifactorial process that greatly affects animal health. Multi-omics analysis is widely applied in evolutionary biology and biomedical research. However, whether multi-omics can provide sufficient information to reveal comprehensive changes in aged non-human primates remains unclear. Here, we explored changes in host–microbe interactions with aging in Chinese rhesus macaques (Macaca mulatta lasiota, CRs) using multi-omics analysis. Results showed marked changes in the oral and gut microbiomes between young and aged CRs, including significantly reduced probiotic abundance and increased pathogenic bacterial abundance in aged CRs. Notably, the abundance of Lactobacillus, which can metabolize tryptophan to produce aryl hydrocarbon receptor (AhR) ligands, was decreased in aged CRs. Consistently, metabolomics detected a decrease in the plasma levels of AhR ligands. In addition, free fatty acid, acyl carnitine, heparin, 2-(4-hydroxyphenyl) propionic acid, and docosahexaenoic acid ethyl ester levels were increased in aged CRs, which may contribute to abnormal fatty acid metabolism and cardiovascular disease. Transcriptome analysis identified changes in the expression of genes associated with tryptophan metabolism and inflammation. In conclusion, many potential links among different omics were found, suggesting that aged CRs face multiple metabolic problems, immunological disorders, and oral and gut diseases. We determined that tryptophan metabolism is critical for the physiological health of aged CRs. Our findings demonstrate the value of multi-omics analyses in revealing host–microbe interactions in non-human primates and suggest that similar approaches could be applied in evolutionary and ecological research of other species.
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Affiliation(s)
- Jue Xu
- West China School of Public Health and West China Fourth Hospital, Chengdu, Sichuan, China
| | - Yue Lan
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Xinqi Wang
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Ke Shang
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Xu Liu
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, China
| | - Jiao Wang
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Jing Li
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
| | - Bisong Yue
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, China
| | - Meiying Shao
- West China School of Public Health and West China Fourth Hospital, Chengdu, Sichuan, China
- *Correspondence: Meiying Shao,
| | - Zhenxin Fan
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, China
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu, China
- Zhenxin Fan,
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19
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Negi S, Hashimoto-Hill S, Alenghat T. Neonatal microbiota-epithelial interactions that impact infection. Front Microbiol 2022; 13:955051. [PMID: 36090061 PMCID: PMC9453604 DOI: 10.3389/fmicb.2022.955051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 07/31/2022] [Indexed: 11/13/2022] Open
Abstract
Despite modern therapeutic developments and prophylactic use of antibiotics during birth or in the first few months of life, enteric infections continue to be a major cause of neonatal mortality and morbidity globally. The neonatal period is characterized by initial intestinal colonization with microbiota and concurrent immune system development. It is also a sensitive window during which perturbations to the environment or host can significantly impact colonization by commensal microbes. Extensive research has demonstrated that these early life alterations to the microbiota can lead to enhanced susceptibility to enteric infections and increased systemic dissemination in newborns. Various contributing factors continue to pose challenges in prevention and control of neonatal enteric infections. These include alterations in the gut microbiota composition, impaired immune response, and effects of maternal factors. In addition, there remains limited understanding for how commensal microbes impact host-pathogen interactions in newborns. In this review, we discuss the recent recognition of initial microbiota-epithelial interactions that occur in neonates and can regulate susceptibility to intestinal infection. These studies suggest the development of neonatal prophylactic or therapeutic regimens that include boosting epithelial defense through microbiota-directed interventions.
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20
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Sturgill L, Fadil A, Hinthorn D, Schrepfer T. Salmonella Retropharyngeal Abscess Linked to Backyard Poultry Exposure in a 12-Month-Old Girl. Cureus 2022; 14:e28375. [PMID: 36171844 PMCID: PMC9508688 DOI: 10.7759/cureus.28375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2022] [Indexed: 11/10/2022] Open
Abstract
We report a rare complication of nontyphoidal Salmonella infection in a 12-month-old girl with a retropharyngeal abscess. The patient presented with a four-day history of nasal congestion, cough, decreased oral intake, and increased irritability. She was admitted for a suspected deep neck infection. Computed tomography confirmed a retropharyngeal abscess with airway narrowing. Incision and drainage was performed, and intraoperative cultures grew nontyphoidal Salmonella. Epidemiologic investigation revealed exposure to a backyard flock of chickens. The patient had little direct contact with chickens but did go with family to collect eggs, riding on a vehicle that likely became contaminated. This case highlights the risks to infants and young children in contact with live poultry or contaminated environments.
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21
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Fang L, Lin G, Li Y, Lin Q, Lou H, Lin M, Hu Y, Xie A, Zhang Q, Zhou J, Zhang L. Genomic characterization of Salmonella enterica serovar Kentucky and London recovered from food and human salmonellosis in Zhejiang Province, China (2016–2021). Front Microbiol 2022; 13:961739. [PMID: 36060737 PMCID: PMC9437622 DOI: 10.3389/fmicb.2022.961739] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Abstract
Increasing human salmonellosis caused by Salmonella enterica serovar Kentucky and London has raised serious concerns. To better understand possible health risks, insights were provided into specific genetic traits and antimicrobial resistance of 88 representative isolates from human and food sources in Zhejiang Province, China, during 2016–2021. Phylogenomic analysis revealed consistent clustering of isolates into the respective serovar or sequence types, and identified plausible interhost transmission via distinct routes. Each serovar exhibited remarkable diversity in host range and disease-causing potential by cgMLST analyses, and approximately half (48.6%, 17/35) of the food isolates were phylogenetically indistinguishable to those of clinical isolates in the same region. S. London and S. Kentucky harbored serovar-specific virulence genes contributing to their functions in pathogenesis. The overall resistance genotypes correlated with 97.7% sensitivity and 60.2% specificity to the identified phenotypes. Resistance to ciprofloxacin, cefazolin, tetracycline, ampicillin, azithromycin, chloramphenicol, as well as multidrug resistance, was common. High-level dual resistance to ciprofloxacin and cephalosporins in S. Kentucky ST198 isolates highlights evolving threats of antibiotic resistance. These findings underscored the necessity for the development of effective strategies to mitigate the risk of food contamination by Salmonella host-restricted serovars.
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Affiliation(s)
- Lei Fang
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China
| | - Guankai Lin
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Yi Li
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Qiange Lin
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Huihuang Lou
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Meifeng Lin
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Yuqin Hu
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Airong Xie
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
| | - Qinyi Zhang
- School of Medical Technology and Information Engineering, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiancang Zhou
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China
- *Correspondence: Jiancang Zhou
| | - Leyi Zhang
- Wenzhou Center for Disease Control and Prevention, Wenzhou, China
- Leyi Zhang
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22
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Antimicrobial and immunomodulatory effects of tannic acid supplementation in broilers infected with Salmonella Typhimurium. Poult Sci 2022; 101:102111. [PMID: 36081234 PMCID: PMC9465346 DOI: 10.1016/j.psj.2022.102111] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/03/2022] [Accepted: 07/27/2022] [Indexed: 12/23/2022] Open
Abstract
Infection by Salmonella Typhimurium, a food-borne pathogen, can reduce the poultry production efficiency. The objective of this study was to investigate the effects of tannic acid (TA) supplementation on growth performance, Salmonella colonization, gut barrier integrity, serum endotoxin levels, antioxidant capacity, gut health, and immune function in broilers infected with the Salmonella enterica serovar Typhimurium nalidixic acid resistant strain (STNR). A total of 546 one-day-old broilers were arbitrarily allocated into 6 treatments including 1) Sham-challenged control (SCC; birds fed a basal diet and administrated peptone water); 2) Challenged control (CC; birds fed a basal diet and inoculated with 108 STNR); 3) Tannic acid 0.25 (TA0.25; CC + 0.25 g/kg TA); 4) TA0.5 (CC + 0.5 g/kg TA); 5) TA1 (CC + 1 g/kg TA); and 6) TA2 (CC + 2 g/kg TA). On D 7, supplemental TA linearly reduced STNR colonization in the ceca (P < 0.01), and TA1 and TA2 group had significantly lower reduced STNR colonization in the ceca (P < 0.01). On D 7 to 21, average daily gain tended to be linearly increased by supplemental TA (P = 0.097). The serum endotoxin levels were quadratically decreased by supplemental TA on D 21 (P < 0.05). Supplemental TA quadratically increased ileal villus height (VH; P < 0.05), and the TA0.25 group had higher ileal VH compared to the CC group (P < 0.05). Supplemental TA linearly increased percentage of peripheral blood CD8+ T cells on D 18 (P < 0.01). The TA0.5 group had significantly lower lymphocyte numbers compared to the CC groups (P < 0.05). The abundance of monocytes linearly increased with TA supplementation (P < 0.01). Therefore, broilers fed TA had reduced STNR colonization, increased growth performance, decreased serum endotoxin levels, enhanced gut health in the broilers, and stimulated the immune system in broilers infected with STNR. Supplementation of TA (1–2 g/kg) enhanced growth performance and gut health via antimicrobial and immunostimulatory effects in broilers infected with STNR.
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Orum TG, Ishola OO, Adebowale OO. Occurrence and antimicrobial susceptibility patterns of Salmonella species from poultry farms in Ibadan, Nigeria. Afr J Lab Med 2022; 11:1606. [PMID: 35937768 PMCID: PMC9350445 DOI: 10.4102/ajlm.v11i1.1606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 04/14/2022] [Indexed: 11/01/2022] Open
Abstract
Background: Salmonella species are among the major foodborne pathogens causing diseases of economic and public health implications in poultry and humans globally.Objective: This study aimed to determine the occurrence and antimicrobial susceptibility patterns of Salmonella isolates from chickens in poultry farms in Ibadan, Southwest Nigeria.Methods: Cloacal swab samples (n = 360) were obtained from chickens randomly selected from 10 poultry farms in five local government areas of Ibadan, Oyo State, from 04 April 2018 to 20 November 2018. Bacterial identification and antimicrobial susceptibility testing were performed using established protocols. Data were analysed using descriptive statistics and Pearson’s chi-squared test at P ≤ 0.05 significance level.Results: The overall prevalence of Salmonella was 21.4%. There were statistically significant associations between Salmonella prevalence and the farm location (p = 0.003), age of chickens (p 0.001), and health status of chickens (p 0.001). All Salmonella isolates (n = 77; 100.0%) were resistant to cefuroxime. The isolates were also highly resistant to cotrimoxazole (n = 74; 96.1%), chloramphenicol (n = 73; 94.8%), meropenem (n = 72; 93.5%), gentamicin (n = 69; 89.6%), and tetracycline (n = 64; 83.1%).Conclusion: The presence of drug-resistant Salmonella in commercial layer chickens in Ibadan is a potential threat to consumer health as it increases the risk of carcass contamination and pathogen propagation, and limits the options to control and treat infections in humans and animals. Well-integrated national surveillance systems for monitoring Salmonella and antimicrobial resistance in poultry are critical.
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Affiliation(s)
- Terese G Orum
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olayinka O Ishola
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Oluwawemimo O Adebowale
- Department of Veterinary Public Health and Preventive Medicine, College of Veterinary Medicine, Federal University of Agriculture, Abeokuta, Ogun State, Nigeria
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24
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Molecular Characterization of Quinolone Resistance Determinants in Non-Typhoidal Salmonella Strains Isolated in Tehran, Iran. Jundishapur J Microbiol 2022. [DOI: 10.5812/jjm-120766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Quinolone resistant Salmonella serotypes have been reported in recent years and have become increasingly widespread worldwide. Objectives: We evaluated the molecular mechanism of quinolone resistance in non-typhoidal Salmonella strains isolated from clinical samples in Tehran, Iran. Methods: The present study included the Salmonella isolates originated from hospitalized individuals and outpatients in Tehran, Iran. Serotyping of nalidixic acid-resistant Salmonella isolates was done by slide agglutination method. Then, the quinolone resistance-determining region (QRDR) of topoisomerase gene gyrA and the plasmid-mediated quinolone resistance (PMQR) determinants were detected using the polymerase chain reaction (PCR) method. Restriction fragment length polymorphism (RFLP) analysis was also employed to determine the possible mutation in the gyrA gene of those strains. Mutant strains were detected by enzymatic digestion, and their PCR products were sequenced immediately. Results: Amongst 141 isolates, 60% showed nalidixic acid resistance, whereas none of them were ciprofloxacin-resistant. The commonly prevalent serotypes were S. Enteritidis and S. Infantis. Of 85 nalidixic acid-resistant strains, 17 (20%) isolates harbored the qnrS gene. However, PCR analysis of the quinolone-resistant strains did not detect qnrA and qnrB genes. PCR-RFLP and sequencing analysis of the QRDRs of the gyrA gene indicated that 16 (18.8%) isolates had mutant patterns, and the most common point mutation was serine to phenylalanine at position 83. Conclusions: Our results demonstrated that point mutations in gyrA and the existence of plasmid-mediated gene qnrS were important mechanisms of quinolone resistance in non-typhoidal Salmonella strains isolated from human origin. Other alternative mechanisms of resistance, such as alterations in the expression of efflux pumps, should be studied to provide greater insight into the molecular mechanism of quinolone-resistant non-typhoidal Salmonella isolates.
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25
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Guan R, Pang H, Liang Y, Shao Z, Gao X, Xu D, Feng X. Discovering trends and hotspots of biosafety and biosecurity research via machine learning. Brief Bioinform 2022; 23:6590367. [PMID: 35596953 PMCID: PMC9487701 DOI: 10.1093/bib/bbac194] [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: 02/03/2022] [Revised: 04/06/2022] [Accepted: 04/27/2022] [Indexed: 11/14/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) has infected hundreds of millions of people and killed millions of them. As an RNA virus, COVID-19 is more susceptible to variation than other viruses. Many problems involved in this epidemic have made biosafety and biosecurity (hereafter collectively referred to as ‘biosafety’) a popular and timely topic globally. Biosafety research covers a broad and diverse range of topics, and it is important to quickly identify hotspots and trends in biosafety research through big data analysis. However, the data-driven literature on biosafety research discovery is quite scant. We developed a novel topic model based on latent Dirichlet allocation, affinity propagation clustering and the PageRank algorithm (LDAPR) to extract knowledge from biosafety research publications from 2011 to 2020. Then, we conducted hotspot and trend analysis with LDAPR and carried out further studies, including annual hot topic extraction, a 10-year keyword evolution trend analysis, topic map construction, hot region discovery and fine-grained correlation analysis of interdisciplinary research topic trends. These analyses revealed valuable information that can guide epidemic prevention work: (1) the research enthusiasm over a certain infectious disease not only is related to its epidemic characteristics but also is affected by the progress of research on other diseases, and (2) infectious diseases are not only strongly related to their corresponding microorganisms but also potentially related to other specific microorganisms. The detailed experimental results and our code are available at https://github.com/KEAML-JLU/Biosafety-analysis.
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Affiliation(s)
- Renchu Guan
- Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun, 130012, Jilin, China.,Zhuhai Sub Laboratory, Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, Zhuhai College of Science and Technology, Zhuhai, 519041, Guangdong, China
| | - Haoyu Pang
- Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun, 130012, Jilin, China
| | - Yanchun Liang
- Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun, 130012, Jilin, China.,Zhuhai Sub Laboratory, Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, Zhuhai College of Science and Technology, Zhuhai, 519041, Guangdong, China
| | - Zhongjun Shao
- Department of Epidemiology, Ministry of Education Key Laboratory of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University, Xi'an, 710032, Shaanxi, China
| | - Xin Gao
- Computational Bioscience Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia.,Computer, Electrical and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia.,BioMap, Beijing, 100192, China
| | - Dong Xu
- Department of Electric Engineering and Computer Science, and Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, 65201, Missouri, USA
| | - Xiaoyue Feng
- Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun, 130012, Jilin, China
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Zhao X, Zhang J, Duan Y, Wan Q, Zhang X, Chen J, Shi C, Gao Y, Ma C. An ultra-fast, one-step RNA amplification method for the detection of Salmonella in seafood. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1111-1116. [PMID: 35212687 DOI: 10.1039/d1ay02056k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Salmonella is one of the most common pathogens associated with food-borne illness resulting from seafood consumption. Herein, an accelerated strand exchange amplification (ASEA) requiring only a pair of primers and one polymerase was first reported for ultra-fast, one-step RNA amplification detection of Salmonella in seafood. The ASEA method could detect Salmonella typhimurium DNA in dilutions as low as 10 copies per reaction and displayed good specificity for Salmonella under the interference of a variety of food-borne pathogens. In particular, ASEA could detect RNA in one step without additional reverse transcription. The detection limit for Salmonella in artificially contaminated oyster was 1 CFU mL-1 following 12 h of enrichment. Moreover, excellent performance of this assay was observed with 99.02% consistency relative to real-time PCR through actual sample detection. Combined with the rapid nucleic acid extraction method, the entire detection process could be completed within 20 min. Therefore, this assay opens up new prospects for the detection of food-borne pathogens in seafood with its rapidity, which would be very beneficial for food safety supervision and pathogen detection of high-throughput samples.
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Affiliation(s)
- Xiaoli Zhao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Provincial Key Laboratory of Biochemical Engineering, College of Chemistry, Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Jian Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Provincial Key Laboratory of Biochemical Engineering, College of Chemistry, Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Yake Duan
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Provincial Key Laboratory of Biochemical Engineering, College of Chemistry, Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Qianyi Wan
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Provincial Key Laboratory of Biochemical Engineering, College of Chemistry, Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Xin Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Provincial Key Laboratory of Biochemical Engineering, College of Chemistry, Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Jiao Chen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Provincial Key Laboratory of Biochemical Engineering, College of Chemistry, Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Chao Shi
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, The Clinical Laboratory Department of the Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, PR China
| | - Yan Gao
- Marine Science Research Institute of Shandong Provice (National Oceanographic Center of Qingdao), Qingdao 266071, China
| | - Cuiping Ma
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Provincial Key Laboratory of Biochemical Engineering, College of Chemistry, Molecular Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
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27
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Zhao X, Wan Q, Zhang J, Duan Y, Li Y, Ma J, Shi C, Ma C. Single-tube analysis for ultra-fast and visual detection of Salmonella. Anal Bioanal Chem 2022; 414:2333-2341. [PMID: 35079852 PMCID: PMC8788404 DOI: 10.1007/s00216-022-03904-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 11/24/2022]
Abstract
Herein, we developed an ultra-fast and visual single-tube nucleic acid detection approach, which combined the advantages of self-settling characteristics of chitosan-functionalized diatomaceous earth (CDE) and accelerated PCR (AC-PCR). DNA was rapidly extracted by CDE within 3 min for the next nucleic acid amplification based on the nucleic acid attached on the chitosan in pH = 5.0. Under the action of gravity, the DNA-enriched CDE self-sediments to the bottom of the tube could be directly used for AC-PCR to achieve single-tube extraction and amplification. Our method detected Salmonella culture fluids with a detection limit of 1 CFU/mL, which was 100-fold more sensitive than conventional method that have not undergone nucleic acid enrichment. Furthermore, it also displayed high specificity and sensitivity for a variety of spiked samples. The entire process could be completed within 17 min in a single tube, and in particular, the result was visualized by the naked eyes. Overall, it is an all-in-one detection strategy without the requirement of redundant procedure, which greatly improved the detection efficiency, and saved the time and the cost. With these advantages, the approach will supply a promising tool in the field of point-of-care testing for Salmonella and other foodborne pathogens.
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Affiliation(s)
- Xiaoli Zhao
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, College of Marine Science and Biological Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Qianyi Wan
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, College of Marine Science and Biological Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Jian Zhang
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, College of Marine Science and Biological Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Yake Duan
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, College of Marine Science and Biological Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Yong Li
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, College of Marine Science and Biological Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Jingrong Ma
- Department of Gastroenterology, Ordos Central Hospital, Kangbashi, China
| | - Chao Shi
- Qingdao Nucleic Acid Rapid Testing International Science and Technology Cooperation Base, College of Life Sciences, Department of Pathogenic Biology, School of Basic Medicine, and Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Cuiping Ma
- Shandong Provincial Key Laboratory of Biochemical Engineering, Qingdao Nucleic Acid Rapid Detection Engineering Research Center, College of Marine Science and Biological Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China.
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A DNA functionalized advanced electrochemical biosensor for identification of the foodborne pathogen Salmonella enterica serovar Typhi in real samples. Anal Chim Acta 2022; 1192:339332. [DOI: 10.1016/j.aca.2021.339332] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/21/2021] [Accepted: 11/24/2021] [Indexed: 11/20/2022]
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29
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Tiew WT, Janapatla RP, Chang YJ, Chen YC, Yang HP, Su LH, Chen CL, Chiu CH. Emergence and spread in Taiwan of multidrug-resistant serotypes of nontyphoidal Salmonella. Infection 2022; 50:475-482. [PMID: 35018587 DOI: 10.1007/s15010-021-01736-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/20/2021] [Indexed: 12/29/2022]
Abstract
PURPOSE Antimicrobial resistance of nontyphoidal Salmonella (NTS) is a threat to public health worldwide. METHODS A study on longitudinally collected NTS isolates from a medical center in Taiwan from 2011 to 2019 was undertaken. The multidrug resistance (MDR) and extensively drug resistance (XDR) phenotypes were determined according to internationally used definitions. Molecular serotyping was performed on the resistant NTS. RESULTS Notably 16.1% (870/5412) of the isolates were MDR, while XDR accounted for 2.1% (111/5412). Both MDR and XDR NTS have increased significantly from 2011 to 2019, especially from 2015 to 2017 (MDR from 9.6% in 2015 to 23.1% 2017; XDR from 1.4% in 2016 to 4.7% in 2017). S. Anatum was the commonest NTS serotype expressing MDR and XDR, in 256/559 (45.8%) and 81/111 (73.0%) of the isolates, respectively, followed by S. Typhimurium and S. Goldcoast. Children < 18 years old contributed to 69.0% of all MDR cases and 64.0% of all XDR cases; majority of them aged less than 5 years. CONCLUSIONS Increasing MDR and XDR NTS is a threat to public health. MDR and XDR NTS usually caused gastroenteritis in children < 5 years old. Multiple NTS serotypes expressing MDR and XDR indicate multiple food vehicles involved in the transmission. Proper food hygiene practice should never be over-reinforced.
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Affiliation(s)
- Wah-Tin Tiew
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan.,Division of Pediatric Infectious Diseases, Ministry of Health, Putrajaya, Malaysia
| | - Rajendra P Janapatla
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan
| | - Yi-Jung Chang
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan
| | - Yi-Ching Chen
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan
| | - Hsin-Ping Yang
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan
| | - Lin-Hui Su
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan
| | - Chyi-Liang Chen
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan
| | - Cheng-Hsun Chiu
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan. .,Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyüan, Taiwan.
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30
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Gut AM, Vasiljevic T, Yeager T, Donkor ON. Antimicrobial properties of traditional kefir: An in vitro screening for antagonistic effect on Salmonella Typhimurium and Salmonella Arizonae. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2021.105180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Wilairatana P, Mala W, Klangbud WK, Kotepui KU, Rattaprasert P, Kotepui M. Prevalence, probability, and outcomes of typhoidal/non-typhoidal Salmonella and malaria co-infection among febrile patients: a systematic review and meta-analysis. Sci Rep 2021; 11:21889. [PMID: 34750425 PMCID: PMC8576030 DOI: 10.1038/s41598-021-00611-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 10/14/2021] [Indexed: 11/09/2022] Open
Abstract
The geographical overlaps of malaria parasites and Salmonella spp. can lead to co-infection of these two pathogens, especially in the tropics where malaria is endemic. Moreover, few literatures suggested that malaria infection was associated with Salmonella bacteremia. Therefore, this study quantified pooled prevalence of typhoidal/non-typhoidal Salmonella (NTS) and probability of typhoidal/NTS and malaria co-infection among febrile patients. The systematic review protocol was registered at PROSPERO (CRD42021252322). Studies on co-infection of typhoidal/NTS and malaria were searched in PubMed, Scopus, and Web of Science. The risk of bias of the included studies was assessed using the checklist for analytical cross-sectional studies developed by the Joanna Briggs Institute. Meta-analyses on the following criteria were performed: (1) pooled prevalence of typhoidal/NTS and malaria co-infection among febrile patients, (2) pooled prevalence of typhoidal/NTS among malaria patients, (3) pooled prevalence of malaria infections among patients with Salmonella spp. infection, and (4) probability of typhoidal/NTS and malaria co-infection among febrile patients. Additionally, the case fatality rate and mean difference of malarial parasitemia between typhoidal/NTS and malaria co-infection and Plasmodium monoinfection were also determined. The subgroup analyses of typhoidal/NTS, regions (Africa and Asia), countries, time (publication year), characteristics of participants, and diagnostic tests for identifying Salmonella spp. were also conducted. A sensitivity test was performed to determine the robustness of the study outcomes. Publication bias among the included studies was evaluated using the funnel plot and Egger’s test. All analyses were performed using Stata version 15 (StataCorp LLC, Texas, USA) with a p-value < 0.05 indicating statistical significance. Eighty-one studies that met the eligibility criteria were included in the analyses. Of the 73,775 study participants, 4523 had typhoidal/NTS and malaria co-infections. The pooled prevalence rates of typhoidal/NTS and malaria co-infection among febrile patients were 14% (95% confidence interval [CI], 9–19%; I2, 99.4%; 2971/17,720 cases) and 1% (95% CI 1–1%; I2, 89.9%; 252/29,081 cases) using the Widal test and culture methods for identifying Salmonella spp., respectively. The pooled prevalence rates of typhoidal/NTS infection among patients with malaria were 31% (95% CI 23–39%; I2, 99.5%; 3202/19,208 cases) and 3% (95% CI 2–3%; I2, 86.8%; 407/40,426 cases) using the Widal test and culture methods for identifying Salmonella spp., respectively. The pooled prevalence rates of malaria infection among patients with typhoidal/NTS were 17% (95% CI 6–29%; I2, 33.3%; 13/75 cases) and 43% (95% CI 32–53%; I2, 89.1%; 287/736 cases), respectively. Malaria infection was associated with typhoidal/NTS in children aged < 15 years (p < 0.0001; odds ratio, 0.36; 95% CI 0.23–0.58; I2, 73.9%; 3188/43,212 cases). The case fatality rate in patients with malaria and NTS co-infections was 16% (95% CI 9–24%; I2, 89.1%; 18/103 cases). From the view of the present study, the inappropriate use of the Widal test for Salmonella spp. diagnosis can overestimate the prevalence of typhoidal/NTS and malaria co-infections. Malaria infection associated with typhoidal/NTS in children and the high case fatality rates among few patients with co-infections were highlighted. Future prospective longitudinal studies using the appropriate and confirmatory dsiagnosis for Salmonella spp. infections are highly recommended to ensure the real prevalence of co-infection and highlight the outcome of co-infection for providing adequate treatment in febrile patients who live in areas where malaria is endemic, such as tropical Africa and India.
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Affiliation(s)
- Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Wanida Mala
- Medical Technology, School of Allied Health Sciences, Walailak University, Tha Sala, Nakhon Si Thammarat, Thailand
| | - Wiyada Kwanhian Klangbud
- Medical Technology, School of Allied Health Sciences, Walailak University, Tha Sala, Nakhon Si Thammarat, Thailand
| | - Kwuntida Uthaisar Kotepui
- Medical Technology, School of Allied Health Sciences, Walailak University, Tha Sala, Nakhon Si Thammarat, Thailand
| | - Pongruj Rattaprasert
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Manas Kotepui
- Medical Technology, School of Allied Health Sciences, Walailak University, Tha Sala, Nakhon Si Thammarat, Thailand.
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Yong Y, Zhou Y, Liu K, Liu G, Wu L, Fang B. Exogenous Citrulline and Glutamine Contribute to Reverse the Resistance of Salmonella to Apramycin. Front Microbiol 2021; 12:759170. [PMID: 34721368 PMCID: PMC8552007 DOI: 10.3389/fmicb.2021.759170] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/24/2021] [Indexed: 11/13/2022] Open
Abstract
Antibiotic resistance is an increasing concern for human and animal health worldwide. Recently, the concept of reverting bacterial resistance by changing the metabolic state of antibiotic-resistant bacteria has emerged. In this study, we investigated the reversal of Apramycin resistance in Salmonella. First, non-targeted metabonomics were used to identify key differential metabolites of drug-resistant bacteria. Then, the reversal effect of exogenous substances was verified in vivo and in vitro. Finally, the underlying mechanism was studied. The results showed that the metabolites citrulline and glutamine were significantly reduced in Apramycin-resistant Salmonella. When citrulline and glutamine were added to the culture medium of drug-resistant Salmonella, the killing effect of Apramycin was restored markedly. Mechanistic studies showed that citrulline and glutamine promoted the Tricarboxylic acid cycle, produced more NADH in the bacteria, and increased the proton-motive force, thus promoting Apramycin entry into the bacterial cells, and killing the drug-resistant bacteria. This study provides a useful method to manage infections by antibiotic-resistant bacteria.
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Affiliation(s)
- Yan Yong
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Yanhong Zhou
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Kexin Liu
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Guochang Liu
- Guangdong Wens Dahuanong Biotechnology Limited Company, YunFu, China
| | - Liqin Wu
- Center for Agricultural Product Quality and Safety of Guangdong Province, Guangzhou, China
| | - Binghu Fang
- National Risk Assessment Laboratory for Antimicrobial Resistance of Animal Original Bacteria, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
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Ramos CP, Diniz AN, Ribeiro MG, de Paula CL, Costa ÉA, Sonne L, Pereira ST, Lopes CEB, Rennó MC, Silva ROS. Enteric Organisms Detected in Feces of Dogs With Bloody Diarrhea: 45 Cases. Top Companion Anim Med 2021; 45:100549. [PMID: 34044173 DOI: 10.1016/j.tcam.2021.100549] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/30/2021] [Accepted: 05/17/2021] [Indexed: 01/08/2023]
Abstract
Bloody diarrhea is a common condition in dogs, but studies evaluating the enteropathogens involved specifically in adult dogs are scarce. In the present study, stool samples from 45 adult dogs with bloody diarrhea were evaluated for the four enteric organisms mainly reported in these cases: canine parvovirus type 2 (CPV-2), Clostridioides difficile, Clostridium perfringens, and Salmonella spp. In addition, the samples were also tested for coronavirus, rotavirus, Giardia spp., and Escherichia coli pathotypes to provide a better understanding of possible co-occurrence. Vaccination status, diet, and clinical outcome were also obtained when available. CPV-2b was identified in 17 dogs (37.8%), being the most frequent cause of bloody diarrhea, including completely vaccinated adult dogs. Toxigenic C. difficile and C. perfringens netF+ were detected in 6 (13.3%) and 5 (11.1%) dogs, in some cases in a co-occurrence with other enteric organisms. Three fatal cases of salmonellosis were identified in dogs fed a raw meat-based diet, raising the risks associated with this increasing practice.
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Affiliation(s)
| | - Amanda Nádia Diniz
- Veterinary School. Universidade Federal de Minas Gerais (UFMG), MG, Brazil
| | - Marcio Garcia Ribeiro
- UNESP-São Paulo State University - Department of Animal Production and Preventive Veterinary Medicine, Botucatu, SP, Brazil
| | - Carolina Lechinski de Paula
- UNESP-São Paulo State University - Department of Animal Production and Preventive Veterinary Medicine, Botucatu, SP, Brazil
| | | | - Luciana Sonne
- Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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Non-Typhoidal Salmonella Infection in Children: Influence of Antibiotic Therapy on Postconvalescent Excretion and Clinical Course-A Systematic Review. Antibiotics (Basel) 2021; 10:antibiotics10101187. [PMID: 34680768 PMCID: PMC8532930 DOI: 10.3390/antibiotics10101187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 11/24/2022] Open
Abstract
(1) Background: Although published recommendations are available, the use of antibiotics in non-typhoidal Salmonella (NTS) infections in children is still controversially debated in clinical practice. Patients might even be put at risk, with necessary antibiotic therapy being withheld due to the widespread concern of prolonged post-convalescent shedding. The authors conducted a systematic review to assess whether antibiotic treatment influences fecal excretion or the clinical course in children with NTS infection. (2) Methods: The review was carried out following the PRISMA guidelines. In a Medline database search, studies assessing the influence of antibiotic therapy on excretion and/or the clinical course of NTS infections were selected. Studies reporting on adults only were not considered. Out of 532 publications which were identified during the systematic literature search, 14 publications were finally included (3273 patients in total). Quality and bias assessment was performed using the Newcastle-Ottawa scale (NOS) or the Cochrane risk-of bias tool (ROB-2). (3) Results: Four early studies from decades ago demonstrated a prolongation of intestinal NTS excretion in children after antibiotic treatment, whereas most studies published more recently observed no significant influence, which might be due to having used more “modern” antibiotic regimes (n = 7 studies). Most studies did not describe significant differences regarding the severity and duration of symptoms between untreated patients and those treated with antibiotics. Quality and bias were mainly moderate (NOS) or variable (ROB-2), respectively. (4) Conclusions: There is no substantial evidence of prolonged excretion of NTS in pediatric patients after treatment with newer antimicrobials. Consequently, clinicians should not withhold antibiotics in NTS infection for children at risk, such as for very young children, children with comorbidities, and those with suspected invasive disease due to concerns about prolonged post-convalescent bacterial excretion. In the majority of cases with uncomplicated NTS diarrhea, clinicians should refrain from applying antibiotics.
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35
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Elbediwi M, Shi D, Biswas S, Xu X, Yue M. Changing Patterns of Salmonella enterica Serovar Rissen From Humans, Food Animals, and Animal-Derived Foods in China, 1995-2019. Front Microbiol 2021; 12:702909. [PMID: 34394048 PMCID: PMC8358327 DOI: 10.3389/fmicb.2021.702909] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/25/2021] [Indexed: 12/04/2022] Open
Abstract
Salmonellosis represents a growing threat to global public health. Salmonella enterica remains the leading cause of bacterial foodborne diseases in China. Salmonella enterica serovar Rissen (S. Rissen) has been recognized as one of the emerging serovars among humans in different countries worldwide. However, knowledge on the prevalence of S. Rissen in China is largely lacking. To address essential epidemiological information for S. Rissen in China, a total of 1,182 S. Rissen isolates recovered from samples across the food chain were collected from 16 provinces or province-level cities between 1995 and 2019. Risk factors due to the consumption of animal-derived food products were also analyzed. We found S. Rissen is widely distributed, especially in the Eastern and Southern parts of China, and there is an increasing frequency in recent years as evidenced by the greater number of isolates recovered in 2016, 2017, and 2018. Interestingly, the majority of S. Rissen isolates recovered in this study were from human samples (63.4%; 749/1182), remarkably, 58.4% (438/749) were from asymptomatic carriers. We obtained most of the S. Rissen isolates from humans from Guangxi (59.5%; 446/749) and Shanghai (29.5%; 221/749). Among 302 human diarrheal isolates (40.3%; 302/749), we found 44.6% (139/311) of S. Rissen in children with diarrhea (age below 10 years old). This is of clinical significance as diarrhea is one of the crucial causes of child mortality globally and our findings here highlighted the importance of Salmonella infections in Chinese children. Additionally, S. Rissen isolates were also found to be associated with pork and poultry products in China. This study projected the most updated national-wide study of S. Rissen isolates obtained from different sources in China over the past two decades. Continued surveillance is warranted to further monitor this emerging serovar in China and elsewhere over the world.
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Affiliation(s)
- Mohammed Elbediwi
- Department of Veterinary Medicine, Institute of Preventive Veterinary Sciences, Zhejiang University College of Animal Sciences, Hangzhou, China.,Agriculture Research Center, Animal Health Research Institute, Cairo, Egypt
| | - Daiwei Shi
- National Institutes for Food and Drug Control, Beijing, China
| | - Silpak Biswas
- Department of Veterinary Medicine, Institute of Preventive Veterinary Sciences, Zhejiang University College of Animal Sciences, Hangzhou, China
| | - Xuebin Xu
- Department of Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Min Yue
- Department of Veterinary Medicine, Institute of Preventive Veterinary Sciences, Zhejiang University College of Animal Sciences, Hangzhou, China.,Hainan Institute of Zhejiang University, Sanya, China.,State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, College of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou, China
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36
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Verma S, Bansal A, Gaur M, Kumar B. Robust immunity induced by multi-epitope DnaK peptides, potential vaccine candidates against Salmonella: An in vitro study. Immunol Lett 2021; 236:61-67. [PMID: 34058259 DOI: 10.1016/j.imlet.2021.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 05/17/2021] [Accepted: 05/23/2021] [Indexed: 10/21/2022]
Abstract
Enteric fever is a common yet serious issue, most troublesome in underdeveloped and developing nations affecting all age group primarily children. Pitfalls of existing vaccines along with rapidly rising Multi-Drug-Resistant Salmonella strains necessitate the need for the development of new vaccine candidates having potential to provide complete protection. Several vaccine strategies are being pursued to stimulate protective immunity against typhoid, including conjugate vaccines for the elicitation of cellular and humoral responses as both arms of immunity are essential for complete protection. Bacterial HSPs are highly immunogenic to produce humoral and cellular immune responses. In this study, we are reporting in vitro immunostimulatory activity of immunodominant multi-epitope protective antigenic DnaK peptides identified earlier by immunoinformatics approach. Remarkable increase in antibody titer, lymphocyte proliferation, cytokines and NO level with individual /mixture of DnaK peptides as compared to control demonstrate immunogenic potential of these peptides that effectively augments both humoral and cellular immune responses. None of the peptides cause any hemolysis in human RBCs. Overall; our findings strongly elucidate the immune-stimulatory potential of DnaK peptides to be explored as potent vaccine candidates against multiple pathogens.
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Affiliation(s)
- Shivani Verma
- Additional Director, Head, Dept of Experimental Biology & Genomics, Defence Institute of Physiology and Allied Sciences, DRDO, Lucknow Road, Timarpur, Delhi, India - 110054
| | - Anju Bansal
- Additional Director, Head, Dept of Experimental Biology & Genomics, Defence Institute of Physiology and Allied Sciences, DRDO, Lucknow Road, Timarpur, Delhi, India - 110054.
| | - Manvi Gaur
- Additional Director, Head, Dept of Experimental Biology & Genomics, Defence Institute of Physiology and Allied Sciences, DRDO, Lucknow Road, Timarpur, Delhi, India - 110054
| | - Bhuvnesh Kumar
- Additional Director, Head, Dept of Experimental Biology & Genomics, Defence Institute of Physiology and Allied Sciences, DRDO, Lucknow Road, Timarpur, Delhi, India - 110054
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Ibrahim S, Wei Hoong L, Lai Siong Y, Mustapha Z, C. W. Zalati CWS, Aklilu E, Mohamad M, Kamaruzzaman NF. Prevalence of Antimicrobial Resistance (AMR) Salmonella spp. and Escherichia coli Isolated from Broilers in the East Coast of Peninsular Malaysia. Antibiotics (Basel) 2021; 10:579. [PMID: 34068312 PMCID: PMC8153281 DOI: 10.3390/antibiotics10050579] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/03/2021] [Accepted: 04/05/2021] [Indexed: 11/17/2022] Open
Abstract
Salmonella species (spp.) and Escherichia coli (E. coli) are the most common infectious pathogens in poultry. Antimicrobials are given either as growth promoters or as treatment, thereby increasing the possibility of the emergence of antimicrobial resistance (AMR). We determined the prevalence of AMR for both pathogens isolated from broiler farms in the East Coast of Peninsular Malaysia from 2018-2019. A total of 384 cloacal swabs were collected, followed by bacterial isolation, confirmation, and antimicrobial susceptibility tests. The overall prevalence of Salmonella spp. and E. coli were 6.5% and 51.8%, respectively. Salmonella spp. and E. coli displayed resistance towards the following antimicrobials: erythromycin (100% for both pathogens), chloramphenicol (76.2% and 84.5%, respectively), tetracycline (62% and 94.6%, respectively), ampicillin (47.7% and 87%, respectively), sulfamethoxazole/trimethoprim (42.9% and 83.3%, respectively), ciprofloxacin (4.8% and 23.8%, respectively), nalidixic acid (9.6% and 60.7%, respectively), streptomycin (19% and 66%, respectively), kanamycin (28.6% and 57%, respectively), cephalothin (0% and 11%, respectively), and gentamicin (0% and 20.2%, respectively). Multidrug resistance (MDR) was recorded in 82% of Salmonella spp. and 100% of E. coli. These findings demonstrate the high prevalence of AMR in both pathogens in broiler farms on the East Coast of Peninsular Malaysia. These findings could be attributed to the excessive use of antimicrobial agents by poultry farm owners. Enhanced control measures and a strong monitoring system should be urgently implemented in order to reduce the emergence of antimicrobial resistance.
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Affiliation(s)
- Shamsaldeen Ibrahim
- Faculty of Veterinary Medicine, University Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia; (S.I.); (C.W.S.C.W.Z.); (E.A.); (M.M.)
- Faculty of Veterinary Science, University of Nyala, PO Box 155, Nyala 63311, South Darfur State, Sudan
| | - Loh Wei Hoong
- Rhone Ma Malaysia Sdn. Bhd., Lot 18A & 18B, Jalan 241, Seksyen 51A, Petaling Jaya 46100, Selangor, Malaysia; (L.W.H.); (Y.L.S.)
| | - Yip Lai Siong
- Rhone Ma Malaysia Sdn. Bhd., Lot 18A & 18B, Jalan 241, Seksyen 51A, Petaling Jaya 46100, Selangor, Malaysia; (L.W.H.); (Y.L.S.)
| | - Zaharuddin Mustapha
- Department of Veterinary Services Pahang, Jalan Sri Kemunting 2, Kuantan 25100, Pahang, Malaysia;
| | - C. W. Salma C. W. Zalati
- Faculty of Veterinary Medicine, University Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia; (S.I.); (C.W.S.C.W.Z.); (E.A.); (M.M.)
| | - Erkihun Aklilu
- Faculty of Veterinary Medicine, University Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia; (S.I.); (C.W.S.C.W.Z.); (E.A.); (M.M.)
| | - Maizan Mohamad
- Faculty of Veterinary Medicine, University Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia; (S.I.); (C.W.S.C.W.Z.); (E.A.); (M.M.)
| | - Nor Fadhilah Kamaruzzaman
- Faculty of Veterinary Medicine, University Malaysia Kelantan, Pengkalan Chepa 16100, Kelantan, Malaysia; (S.I.); (C.W.S.C.W.Z.); (E.A.); (M.M.)
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Luo Q, Wan F, Yu X, Zheng B, Chen Y, Gong C, Fu H, Xiao Y, Li L. MDR Salmonella enterica serovar Typhimurium ST34 carrying mcr-1 isolated from cases of bloodstream and intestinal infection in children in China. J Antimicrob Chemother 2021; 75:92-95. [PMID: 31580437 DOI: 10.1093/jac/dkz415] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/20/2019] [Accepted: 09/05/2019] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES Children are vulnerable to Salmonella infection due to their immature immune system. Cases of infection with mcr-1-harbouring Salmonella in child inpatients have not been reported in China before. METHODS Salmonella isolates from gastroenteritis and bacteraemia were screened using primers targeting mcr-1. Complete genome sequences of mcr-1-harbouring isolates were determined using the PacBio RS II platform. The transferability of mcr-1-harbouring plasmids was verified by conjugation. RESULTS We investigated two mcr-1-carrying polymyxin-resistant Salmonella enterica serovar Typhimurium ST34 isolates, S61394 and S44712, from bloodstream and intestinal Salmonella infection of two child inpatients, respectively. Both isolates were non-susceptible to commonly used antibiotics for children that compromised the success of clinical treatment and infection control. The mcr-1-harbouring plasmids pLS61394-MCR and pLS44712-MCR (from S61394 and S44712, respectively) were both conjugative pHNSHP45-2-like IncHI2-type epidemic plasmids carrying multiple resistance genes. Compared with pHNSHP45-2, a ∼33 kb insertion region encoding Tn7 transposition protein and heavy metal resistance proteins was identified in pLS61394-MCR, which might enhance adaptation of bacteria carrying this plasmid to various ecological niches. The phylogenetic tree of worldwide mcr-harbouring Salmonella indicated a host preference of mcr and a worldwide and cross-sectoral prevalence of the mcr-positive Salmonella ST34 clone. CONCLUSIONS To our knowledge, for the first time we report completed whole genomes of mcr-1-positive MDR Salmonella Typhimurium ST34 isolated from infected children in China, suggesting that improved surveillance is imperative for tackling the dissemination of mcr-harbouring MDR Salmonella Typhimurium ST34.
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Affiliation(s)
- Qixia Luo
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Fen Wan
- College of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China
| | - Xiao Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Beiwen Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yunbo Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Chenhui Gong
- Bingjiang College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hao Fu
- Bingjiang College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yonghong Xiao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lanjuan Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Wu LJ, Luo Y, Shi GL, Li ZY. Prevalence, Clinical Characteristics and Changes of Antibiotic Resistance in Children with Nontyphoidal Salmonella Infections from 2009-2018 in Chongqing, China. Infect Drug Resist 2021; 14:1403-1413. [PMID: 33880045 PMCID: PMC8053510 DOI: 10.2147/idr.s301318] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/17/2021] [Indexed: 12/27/2022] Open
Abstract
Purpose Nontyphoidal Salmonella (NTS) is a leading bacterial cause for acute gastroenteritis in children. With the increasing use of antibiotics worldwide, antibiotic resistance has become a global problem. However, data on NTS infections and changes in antibiotic resistance among children remain limited in China. We aimed to characterize the prevalence, clinical feature, serotype and the changes of antibiotic resistance of NTS in children in Chongqing. Methods 501 hospitalized children with NTS infections (confirmed by positive NTS culture) in Children’s Hospital of Chongqing Medical University from January 2009 to December 2018 were included. The clinical data and drug sensitivity test results were retrospectively reviewed and analyzed. Antibiotic resistance in NTS infections was compared between 2009–2013 and 2014–2018. Results A total of 501 isolates were detected. Most NTS infections occurred in children under three years old, which mainly occurred between July and October. The numbers of patients with diarrhea, fever, and vomiting were 472 (94.2%), 422 (84.2%) and 146 (29.1%), respectively. Serogroup B (67.5%) was the predominant serogroup isolates. And Salmonella Typhimurium was the most common serotype (79.2%). The study compared the drug resistance of NTS from 2009 to 2013 with that from 2014 to 2018. We found the drug resistance rates of NTS to cefazolin, cefotaxime, ciprofloxacin, levofloxacin and imipenem showed an upward trend. The drug resistance rates of NTS to chloramphenicol, ampicillin, ceftriaxone, cefepime and compound sulfamethoxazole decreased slightly, but still showed high drug resistance rates. And drug resistance rates of NTS to piperacillin/tazobactam and ceftazidime decreased significantly in the last ten years. Multi-drug resistance (MDR) isolates, were detected among 69 cases (13.7%) of 501 children with NTS infections. Conclusion The overall antibiotic resistance rates remained at a high level in Chongqing. Continuous surveillance of antibiotic resistance in NTS and control measures such as avoiding unnecessary antibiotic therapy in general NTS gastroenteritis are important. For severe or invasive infections caused by NTS infection in Southwest China, the use of ceftazidime is recommended until antibiotic sensitivity test results are available. And the choice of antibiotics should be based on the curative effect and the antibiotics sensitivity results.
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Affiliation(s)
- Li-Juan Wu
- Department of Gastroenterology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
| | - Yan Luo
- Department of Pediatrics, Wushan County People's Hospital of Chongqing, Chongqing, People's Republic of China
| | - Guo-Lu Shi
- Department of Pediatrics, Suining Central Hospital, Sichuan, People's Republic of China
| | - Zhong-Yue Li
- Department of Gastroenterology, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Pediatrics, Chongqing, People's Republic of China
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40
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Pachanon R, Koide K, Kongsoi S, Ajima N, Kapalamula TF, Nakajima C, Suthienkul O, Suzuki Y. Effectiveness of Fluoroquinolones with Difluoropyridine Derivatives as R1 Groups on the Salmonella DNA Gyrase in the Presence and Absence of Plasmid-Encoded Quinolone Resistance Protein QnrB19. Microb Drug Resist 2021; 27:1412-1419. [PMID: 33835868 DOI: 10.1089/mdr.2020.0455] [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
Aims: WQ-3810 has strong inhibitory activity against Salmonella and other fluoroquinolone-resistant pathogens. The unique potentiality of this is attributed to 6-amino-3,5-difluoropyridine-2-yl at R1 group. The aim of this study was to examine WQ-3810 and its derivatives WQ-3334 and WQ-4065 as the new drug candidate for wild-type Salmonella and that carrying QnrB19. Materials and Methods: The half maximal inhibitory concentrations (IC50s) of WQ-3810, WQ-3334 (Br atom in place of methyl group at R8), and WQ-4065 (6-ethylamino-3,5-difluoropyridine-2-yl in place of 6-amino-3,5-difluoropyridine-2-yl group at R1) in the presence or absence of QnrB19 were assessed by in vitro DNA supercoiling assay utilizing recombinant DNA gyrase and QnrB19. Results: IC50s of WQ-3810, WQ-3334, and WQ-4065 against Salmonella DNA gyrase were 0.031 ± 0.003, 0.068 ± 0.016, and 0.72 ± 0.39 μg/mL, respectively, while QnrB19 increased IC50s of WQ-3810, WQ-3334, and WQ-4065 to 0.44 ± 0.05, 0.92 ± 0.34, and 9.16 ± 2.21 μg/mL, respectively. Conclusion: WQ-3810 and WQ-3334 showed stronger inhibitory activity against Salmonella Typhimurium DNA gyrases than WQ-4065 even in the presence of QnrB19. The results suggest that 6-amino-3,5-difluoropyridine-2-yl group at R1 is playing an important role and WQ-3810 and WQ-3334 to be good candidates for Salmonella carrying QnrB19.
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Affiliation(s)
- Ruttana Pachanon
- Division of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Kentaro Koide
- Division of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Siriporn Kongsoi
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, Thailand
| | - Nami Ajima
- Division of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Thoko Flav Kapalamula
- Division of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Chie Nakajima
- Division of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan.,Global Station for Zoonosis Control, The Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
| | - Orasa Suthienkul
- Department of Microbiology, Faculty of Public Health, Mahidol University, Salaya, Thailand
| | - Yasuhiko Suzuki
- Division of Bioresources, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan.,Global Station for Zoonosis Control, The Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
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41
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Knoll RL, Dennebaum MS. [Fever in pediatric returning travellers]. Monatsschr Kinderheilkd 2021; 169:426-431. [PMID: 33727732 PMCID: PMC7952080 DOI: 10.1007/s00112-021-01147-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2021] [Indexed: 11/24/2022]
Abstract
Management and treatment of the febrile pediatric patient returning from a tropical country is often challenging. Detailed medical and travel history with an emphasis on possible exposure (e.g. fresh water exposure, animal contact etc.) as well as a complete physical examination are essential. Considering the possible incubation period and travel destination, the number of potential differential diagnoses can often be greatly reduced. While most infections are self-limiting and run an uncomplicated course, it is crucial to recognize potentially life-threatening infections and to treat them appropriately.This article provides guidance for a rational approach and diagnostics with respect to fever in the context of differential diagnoses in tropical medicine in the pediatric patient collective.
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Affiliation(s)
- Rebecca L Knoll
- Zentrum für Kinder- und Jugendmedizin, Universitätsmedizin, Mainz, Deutschland
| | - Martin S Dennebaum
- Institut für Mikrobiologie und Hygiene, Abteilung Infektionsmedizin, Universitätsmedizin, Langenbeckstr. 1, 55131 Mainz, Deutschland
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42
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Henning A, McLaughlin C, Armen S, Allen S. Socio-spatial influences on the prevalence of COVID-19 in central Pennsylvania. Spat Spatiotemporal Epidemiol 2021; 37:100411. [PMID: 33980403 PMCID: PMC7857135 DOI: 10.1016/j.sste.2021.100411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 12/22/2020] [Accepted: 02/01/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Allison Henning
- Penn State Hershey Medical Center internal medicine and pediatrics, 500 University Dr Hershey, PA 17033, United States.
| | | | - Scott Armen
- Penn State Hershey Medical Center, chief of trauma surgery, fellow of American college of surgeons, American college of chest physicians, society of critical care medicine, United States
| | - Steven Allen
- Penn State Hershey Medical Center, trauma and acute care surgery, United States
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Zeng H, De Reu K, Gabriël S, Mattheus W, De Zutter L, Rasschaert G. Salmonella prevalence and persistence in industrialized poultry slaughterhouses. Poult Sci 2021; 100:100991. [PMID: 33610890 PMCID: PMC7905466 DOI: 10.1016/j.psj.2021.01.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 11/29/2022] Open
Abstract
Salmonella contamination sources and transmission routes were studied in 5 Belgian poultry slaughterhouses. Samples from the slaughter and cutting line after cleaning and disinfection were collected, as well as neck skin samples and thighs during slaughter of the first flock. In total, 680 swab and water samples were taken from the slaughter line before slaughter. In all slaughterhouses, Salmonella was notwithstanding cleaning and disinfection still isolated from the slaughter line before start of activities. The prevalence of Salmonella in the plucking area was 10.4% (38/365) (hanging area: 5.0%, scalding tank: 5.8%, plucking machine: 17.0%); in the evisceration room, 1.5% (2/138); and in the cutting area, 2.0% (3/149). No Salmonella (0/28) was found in samples from the chilling line. On neck skin samples taken from the various lines, Salmonella prevalence was 16.1% (48/299) after plucking, 16.0% (48/300) after evisceration, 23.3% (70/300) after chilling; on thighs, prevalence was 10.0% (24/240). Nine Salmonella serotypes were identified of which Salmonella Infantis was the most common serovar (53.8%), especially in slaughterhouse A. Two contamination causes were identified; first, although all flocks had an official Salmonella negative status, this was in one case incorrect and led to an enormous contamination of the neck skins of the flock and the slaughterline (i.e., cooling water). Second, molecular typing revealed cross-contamination from flocks slaughtered 1 d before sampling. Salmonella was apparently not always eliminated by the cleaning and disinfection process and able to contaminate the carcasses of the first slaughtered flock. In conclusion, the results of this study provided practical insights for poultry production to further improve their Salmonella control, for example, Salmonella status determination closer to the slaughter date, to adapt cleaning and disinfection protocols especially for critical machinery and better hygienic designed equipment.
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Affiliation(s)
- H Zeng
- Flanders Research Institute For Agriculture, Fisheries and Food (ILVO), B-9090 Melle, Belgium; Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium
| | - K De Reu
- Flanders Research Institute For Agriculture, Fisheries and Food (ILVO), B-9090 Melle, Belgium
| | - S Gabriël
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium
| | - W Mattheus
- Sciensano, Infectious Diseases in Humans, Bacterial Diseases, B-1180 Brussels, Belgium
| | - L De Zutter
- Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, B-9820 Merelbeke, Belgium
| | - G Rasschaert
- Flanders Research Institute For Agriculture, Fisheries and Food (ILVO), B-9090 Melle, Belgium.
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Li X, Singh N, Beshearse E, Blanton JL, DeMent J, Havelaar AH. Spatial Epidemiology of Salmonellosis in Florida, 2009-2018. Front Public Health 2021; 8:603005. [PMID: 33681114 PMCID: PMC7931371 DOI: 10.3389/fpubh.2020.603005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/07/2020] [Indexed: 12/19/2022] Open
Abstract
Non-typhoidal Salmonella enterica infections cause a high disease burden in the United States with an estimated 1.2 million illnesses annually. The state of Florida consistently has a relatively high incidence compared to other states in the United States. Nevertheless, studies regarding the epidemiology of nontyphoidal salmonellosis and its spatial and temporal patterns in Florida were rarely reported. We examined the spatial and temporal patterns of 62,947 salmonellosis cases reported to FL Health Charts between 2009 and 2018. Dominant serotypes circulating in Florida were also explored using whole genome sequencing (WGS) based serotype-prediction for 2,507 Salmonella isolates sequenced by the Florida Department of Health during 2017 and 2018. The representativeness of laboratory-sequenced isolates for reported cases was determined by regression modeling. The annual incidence rate of salmonellosis decreased from 36.0 per 100,000 population in 2009 to 27.8 per 100,000 in 2016, and gradually increased in 2017 and 2018. Increased use of culture-independent testing did not fully explain this increase. The highest incidence rate was observed in children, contributing 40.9% of total reported cases during this period. A seasonal pattern was observed with the incidence peaking in September and October, later than the national average pattern. Over these 10 years, the Northeast and Northwest regions of the state had higher reported incidence rates, while reported rates in the Southeast and South were gradually increasing over time. Serotypes were predicted based on WGS data in the EnteroBase platform. The top-five most prevalent serotypes in Florida during 2017–2018 were Enteritidis, Newport, Javiana, Sandiego and Braenderup. The highest percentage of isolates was from children under 5 years of age (41.4%), and stool (84.7%) was the major source of samples. A zero-inflated negative binomial regression model showed that the reported case number was a strong predictor for the number of lab-sequenced isolates in individual counties, and the geospatial distribution of sequenced isolates was not biased by other factors such as age group. The spatial and temporal patterns identified in this study along with the prevalence of different serotypes will be helpful for the development of efficient prevention and control strategies for salmonellosis in Florida.
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Affiliation(s)
- Xiaolong Li
- Department of Environmental and Global Health, Emerging Pathogens Institute, University of Florida, Gainesville, FL, United States
| | - Nitya Singh
- Animal Sciences Department, Emerging Pathogens Institute and Food Systems Institute, University of Florida, Gainesville, FL, United States
| | - Elizabeth Beshearse
- Animal Sciences Department, Emerging Pathogens Institute and Food Systems Institute, University of Florida, Gainesville, FL, United States.,Food and Waterborne Disease Program, Florida Department of Health, Tallahassee, FL, United States
| | - Jason L Blanton
- Bureau of Public Health Laboratories, Florida Department of Health, Jacksonville, FL, United States
| | - Jamie DeMent
- Food and Waterborne Disease Program, Florida Department of Health, Tallahassee, FL, United States
| | - Arie H Havelaar
- Animal Sciences Department, Emerging Pathogens Institute and Food Systems Institute, University of Florida, Gainesville, FL, United States
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45
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Huang F, Xue L, Qi W, Cai G, Liu Y, Lin J. An ultrasensitive impedance biosensor for Salmonella detection based on rotating high gradient magnetic separation and cascade reaction signal amplification. Biosens Bioelectron 2020; 176:112921. [PMID: 33383398 DOI: 10.1016/j.bios.2020.112921] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/18/2020] [Indexed: 12/20/2022]
Abstract
An impedance biosensor using rotary magnetic separation and cascade reaction was developed for rapid and ultrasensitive detection of Salmonella typhimurium. First, magnetic nanoparticles (MNPs) modified with anti-Salmonella monoclonal antibodies were injected into a capillary at the presence of a rotary high gradient magnetic field, which was rotated by a stepper motor. Then, a bacterial sample was injected into the capillary and the target bacteria were continuous-flow captured onto the MNPs. After organic-inorganic hybrid nanoflowers were prepared using manganese dioxide (MnO2), glucose oxidase (GOx) and anti-Salmonella polyclonal antibodies (pAbs), they were injected to label the bacteria, resulting in the formation of MNP-bacteria-nanoflower sandwich complexes. Finally, glucose (low conductivity) was injected and oxidized by GOx on the complexes to produce H2O2 (low conductivity) and gluconic acid (high conductivity), leading to impedance decrease. Besides, the produced H2O2 triggered a cascade reduction of MnO2 into Mn2+, leading to further impedance decrease. The impedance changes were measured using an interdigitated microelectrode and used to determine the concentration of target bacteria. This biosensor was able to detect Salmonella ranging from 101 to 106 CFU/mL in 2 h with a low detection limit of 101 CFU/mL and a mean recovery of 100.1% for the spiked chicken samples.
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Affiliation(s)
- Fengchun Huang
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Li Xue
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Wuzhen Qi
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Gaozhe Cai
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Yuanjie Liu
- Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education, China Agricultural University, Beijing, China
| | - Jianhan Lin
- Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education, China Agricultural University, Beijing, China.
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46
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Adrizain R, Aprimadhansari, Indriasari V, Kusmayadi DD, Setiabudi D. Secondary infection of amoeba and typhoid fever in severe malnourished pediatric patient with Type I choledocal cyst: a case report. Oxf Med Case Reports 2020; 2020:omaa111. [PMID: 33391767 PMCID: PMC7768523 DOI: 10.1093/omcr/omaa111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/10/2020] [Accepted: 10/05/2020] [Indexed: 12/02/2022] Open
Abstract
Amebiasis is caused by the protozoan Entamoeba histolytica. Extraintestinal amebiasis manifestation includes liver abscess and other rare manifestations involving the lungs, heart and brain. Liver abscess is the most common extraintestinal manifestation. Only few cases of amebic splenic abscess and two cases of gall bladder abscess have been reported. Typhoid fever is an infection caused by Salmonella typhi. It can cause extraintestinal complications such as myocarditis, endocarditis, pneumonia, empyema, osteomyelitis, arthritis, cholecystitis, spleen abscess and liver abscess. Choledocal cyst is a congenital dilation of the biliary branch. If left untreated, it can cause morbidity from cholangitis, cyst perforation, liver failure and malignancy. Until now, there is no publication about double infection of amebic and salmonella infection in a child with choledocal cyst.
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Affiliation(s)
- Riyadi Adrizain
- Department of Child's Health, Faculty of Medicine Padjadjaran University/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Aprimadhansari
- Pediatric Resident Department of Child's Health, Faculty of Medicine Padjadjaran University/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Vita Indriasari
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine Padjadjaran University/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Dikki Drajat Kusmayadi
- Pediatric Surgery Division, Department of Surgery, Faculty of Medicine Padjadjaran University/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Djatnika Setiabudi
- Department of Child's Health, Faculty of Medicine Padjadjaran University/Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
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47
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Aljahdali NH, Sanad YM, Han J, Foley SL. Current knowledge and perspectives of potential impacts of Salmonella enterica on the profile of the gut microbiota. BMC Microbiol 2020; 20:353. [PMID: 33203384 PMCID: PMC7673091 DOI: 10.1186/s12866-020-02008-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 10/12/2020] [Indexed: 12/27/2022] Open
Abstract
In the past decade, the initial studies of the gut microbiota started focusing on the correlation of the composition of the gut microbiota and the health or diseases of the host, and there are extensive literature reviews pertaining to this theme. However, little is known about the association between the microbiota, the host, and pathogenic bacteria, such as Salmonella enterica, which is among the most important foodborne pathogens and identified as the source of multiple outbreaks linked to contaminated foods causing salmonellosis. Secretion systems, flagella, fimbriae, endotoxins, and exotoxins are factors that play the most important roles in the successful infection of the host cell by Salmonella. Infections with S. enterica, which is a threat to human health, can alter the genomic, taxonomic, and functional traits of the gut microbiota. The purpose of this review is to outline the state of knowledge on the impacts of S. enterica on the intestinal microbiota and highlight the need to identify the gut bacteria that could contribute to salmonellosis.
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Affiliation(s)
- Nesreen H Aljahdali
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd, Jefferson, AR, 72079, USA.,Biological Science Department, College of Science, King Abdul-Aziz University, Jeddah, Saudi Arabia
| | - Yasser M Sanad
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd, Jefferson, AR, 72079, USA.,Department of Agriculture, University of Arkansas, Pine Bluff, AR, USA.,Department of Parasitology and Animal Diseases, Veterinary Research Division, National Research Centre, Giza, Egypt
| | - Jing Han
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd, Jefferson, AR, 72079, USA
| | - Steven L Foley
- Division of Microbiology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Rd, Jefferson, AR, 72079, USA.
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48
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Kung YH, Yeh YC, Kuo KC. Clinical characteristics and predictors of community-acquired pseudomonas aeruginosa sepsis and nontyphoidal salmonella sepsis in infants: A matched Case-Control study. Pediatr Neonatol 2020; 61:522-528. [PMID: 32571671 DOI: 10.1016/j.pedneo.2020.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 03/20/2020] [Accepted: 05/26/2020] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND Pseudomonas aeruginosa and nontyphoidal Salmonella (NTS) species may cause enteric illness with sepsis in infancy. The clinical predictors distinguishing the two pathogens have not been comprehensively evaluated in this population in Taiwan. METHODS A retrospective matched case-control study was conducted in a teaching hospital in southern Taiwan from January 1, 2003 to January 30, 2019. The patients with community-acquired P. aeruginosa sepsis were matched at a ratio of 1:2 by age and gender with controls (who developed NTS sepsis). RESULTS A total of 21 infants with community-acquired P. aeruginosa sepsis were identified; of these, 12 (57.1%) were male, and the mean ± standard deviation of age was 6.95 ± 2.47 months. Two independent predictors indicative of P. aeruginosa sepsis, as identified by multivariate analysis using conditional logistic regression, were hemoglobin level (Hb) (matched odds ratio [mOR], 0.155; 95% confidence interval [CI], 0.027-0.900; p = 0.038) and platelet count (mOR, 0.988, 95% CI, 0.976-1.000; p = 0.049). The areas under the receiver operating characteristic (ROC) curves of Hb and platelet count for P. aeruginosa sepsis prediction were 0.855 and 0.803, respectively. With cut-off values for Hb of 10.7 g/dL and platelet count of 173,000/μL, the predictors had maximal diagnostic accuracy. CONCLUSION Most patients with P. aeruginosa sepsis are less than one year old. A lower hemoglobin level and a lower platelet count are significant predictors of P. aeruginosa sepsis. These findings should help to reshape the policy of empirical antibiotics in infants with sepsis.
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Affiliation(s)
- Yin-Hsiang Kung
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Chun Yeh
- Department of Psychiatry, Kaohsiung Medical University Hospital, Department of Psychiatry, Faculty of Medicine, Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 833, Taiwan
| | - Kuang-Che Kuo
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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49
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Kılıç AO, Akın F, Yazar A, Çokbiçer A, Doğan M, Energin VM. A Rare Complication during Salmonella sp. Infection in a 4-Year-Old Child: Acute Pancreatitis. J PEDIAT INF DIS-GER 2020. [DOI: 10.1055/s-0040-1714711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
Objective We aimed to report a rare complication of acute pancreatitis which developed during Salmonella infection.
Methods We report a 4-year-old girl with pancreatitis that occurred after salmonella gastroenteritis.
Discussion Salmonella sp. infections cause serious mortality and morbidity worldwide. Salmonella transmission is mostly fecal oral from contaminated water and foods. Acute pancreatitis expresses the acute inflammatory process of the pancreas. Inflammation of the pancreas associated with bacterial, viral, and fungal agents can lead to acute pancreatitis. There are limited data regarding the frequency of infections leading to pancreatitis. Here, a pediatric case with pancreatitis that occurred after salmonella gastroenteritis is reported.
Conclusion Acute pancreatitis due to S. sp. infection is very rare in children. Pancreatitis should be considered in patients with gastroenteritis with typical abdominal pain.
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Affiliation(s)
- Ahmet O. Kılıç
- Department of Pediatrics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Fatih Akın
- Department of Pediatrics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Abdullah Yazar
- Department of Pediatrics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Abdülkerim Çokbiçer
- Department of Pediatrics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Metin Doğan
- Department of Medical Microbiology, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
| | - Vesile M. Energin
- Department of Pediatrics, Meram Medical Faculty, Necmettin Erbakan University, Konya, Turkey
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50
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Tack B, Vanaenrode J, Verbakel JY, Toelen J, Jacobs J. Invasive non-typhoidal Salmonella infections in sub-Saharan Africa: a systematic review on antimicrobial resistance and treatment. BMC Med 2020; 18:212. [PMID: 32677939 PMCID: PMC7367361 DOI: 10.1186/s12916-020-01652-4] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/25/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Non-typhoidal Salmonella (NTS) are a frequent cause of invasive infections in sub-Saharan Africa. They are frequently multidrug resistant (co-resistant to ampicillin, trimethoprim-sulfamethoxazole, and chloramphenicol), and resistance to third-generation cephalosporin and fluoroquinolone non-susceptibility have been reported. Third-generation cephalosporins and fluoroquinolones are often used to treat invasive NTS infections, but azithromycin might be an alternative. However, data on antibiotic treatment efficacy in invasive NTS infections are lacking. In this study, we aimed to assess the spatiotemporal distribution of antimicrobial resistance in invasive NTS infections in sub-Saharan Africa and to describe the available evidence and recommendations on antimicrobial treatment. METHODS We conducted a systematic review of all available literature on antimicrobial resistance and treatment in invasive NTS infections. We performed a random effects meta-analysis to assess the temporal distribution of multidrug resistance, third-generation cephalosporin resistance, and fluoroquinolone non-susceptibility. We mapped these data to assess the spatial distribution. We provided a narrative synthesis of the available evidence and recommendations on antimicrobial treatment. RESULTS Since 2001, multidrug resistance was observed in 75% of NTS isolates from all sub-Saharan African regions (95% confidence interval, 70-80% and 65-84%). Third-generation cephalosporin resistance emerged in all sub-Saharan African regions and was present in 5% (95% confidence interval, 1-10%) after 2010. Fluoroquinolone non-susceptibility emerged in all sub-Saharan African regions but did not increase over time. Azithromycin resistance was reported in DR Congo. There were no reports on carbapenem resistance. We did not find high-quality evidence on the efficacy of antimicrobial treatment. There were no supranational guidelines. The "Access group" antibiotics ampicillin, trimethoprim-sulfamethoxazole, and chloramphenicol and "Watch group" antibiotics ceftriaxone, cefotaxime, and ciprofloxacin were recommended as the first-choice antibiotics in national guidelines or reviews. These also recommended (a switch to) oral fluoroquinolones or azithromycin. CONCLUSIONS In addition to the widespread multidrug resistance in invasive NTS infections in sub-Saharan Africa, resistance to third-generation cephalosporins and fluoroquinolone non-susceptibility was present in all regions. There was a lack of data on the efficacy of antimicrobial treatment in these infections, and supranational evidence-based guidelines were absent.
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Affiliation(s)
- Bieke Tack
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.
| | | | - Jan Y Verbakel
- Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Jaan Toelen
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Division of Woman and Child, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Jan Jacobs
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
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