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Pyz-Łukasik R, Piróg-Komorowska A, Policht A. Occurrence, Molecular Serogroups, Antimicrobial Susceptibility and Identification by MALDI-TOF MS of Listeria monocytogenes Isolated from RTE Meat Products in Southern Poland. Foods 2024; 13:2950. [PMID: 39335879 PMCID: PMC11431779 DOI: 10.3390/foods13182950] [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: 08/18/2024] [Revised: 09/09/2024] [Accepted: 09/12/2024] [Indexed: 09/30/2024] Open
Abstract
L. monocytogenes is considered one of the most dangerous foodborne pathogens. This study aimed to determine the occurrence of L. monocytogenes in RTE meat products from southern Poland, including serogroups and antimicrobial susceptibility, and to assess the usefulness of MALDI-TOF MS as a tool for identifying L. monocytogenes. A total of 848 production batches of RTE meat products were analyzed for L. monocytogenes. All L. monocytogenes isolates were serotyped using the multiplex PCR method, tested for antimicrobial susceptibility using the disk diffusion method and identified using the MALDI-TOF MS method. L. monocytogenes was detected in 52/848 batches of RTE meat products (6.13%). The isolates belonged to four serogroups: 17/52 (33%) isolates to IVb; 15/52 (29%) isolates to IIa; 10/52 (19%) isolates to IIc and 10/52 (19%) isolates to IIb. All isolates (52/52) showed susceptibility to the tested antimicrobials. Using MALDI-TOF MS, 10/52 isolates (19.2%) were identified at the level of secure genus identification, probable species identification; 37/52 isolates (71.2%) were identified at the level of probable genus identification; 3/52 isolates (5.8%) were incorrectly identified as L. innocua; and 2/52 isolates (3.8%) were not identified. The occurrence of L. monocytogenes in RTE meat products was low. Almost half of the analyzed isolates were L. monocytogenes of serogroups, which are most often associated with listeriosis in humans in Poland. All isolates showed susceptibility to five commonly used antimicrobials for treating listeriosis. The use of MALDI-TOF MS as a tool for the identification of L. monocytogenes indicated its limitations related to the insufficient representation of the pathogen in the reference database.
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Affiliation(s)
- Renata Pyz-Łukasik
- Department of Food Hygiene of Animal Origin, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka, 12, 20-033 Lublin, Poland
| | - Anna Piróg-Komorowska
- Department of Veterinary Hygiene, Provincial Veterinary Inspectorate in Krakow, Brodowicza, 13b, 30-965 Kraków 69, Poland
| | - Agata Policht
- Department of Veterinary Hygiene, Provincial Veterinary Inspectorate in Krakow, Brodowicza, 13b, 30-965 Kraków 69, Poland
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Lambrechts K, Gouws P, Rip D. Genetic diversity of Listeria monocytogenes from seafood products, its processing environment, and clinical origin in the Western Cape, South Africa using whole genome sequencing. AIMS Microbiol 2024; 10:608-643. [PMID: 39219753 PMCID: PMC11362271 DOI: 10.3934/microbiol.2024029] [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: 04/25/2024] [Revised: 07/08/2024] [Accepted: 07/25/2024] [Indexed: 09/04/2024] Open
Abstract
Listeria monocytogenes is a concern in seafood and its food processing environment (FPE). Several outbreaks globally have been linked to various types of seafood. Genetic profiling of L. monocytogenes is valuable to track bacterial contamination throughout the FPE and in understanding persistence mechanisms, with limited studies from South Africa. Forty-six L. monocytogenes isolates from origins: Fish/seafood products (n = 32) (salmon, smoked trout, fresh hake, oysters), the FPE (n = 6), and clinical (n = 8) were included in this study. Lineage typing, antibiotic susceptibility testing, and screening for two genes (bcrABC and emrC) conferring sanitizer tolerance was conducted. The seafood and FPE isolates originated from seven different factories processing various seafood products with undetermined origin. All clinical isolates were categorized as lineage I, and seafood and FPE isolates were mostly categorized into lineage II (p < 0.01). Seafood and FPE isolates (53%) carried the bcrABC gene cassette and one fish isolate, the emrC gene. A subset, n = 24, was grouped into serotypes, sequence types (STs), and clonal complexes (CCs) with whole genome sequencing (WGS). Eight CCs and ten STs were identified. All clinical isolates belonged to serogroup 4b, hypervirulent CC1. CC121 was the most prevalent in isolates from food and the FPE. All isolates carried Listeria pathogenicity islands (LIPI) 1 and 2. LIPI-3 and LIPI-4 were found in certain isolates. We identified genetic determinants linked to enhanced survival in the FPE, including stress survival islets (SSI) and genes conferring tolerance to sanitizers. SSI-1 was found in 44% isolates from seafood and the FPE. SSI-2 was found in all the ST121 seafood isolates. Isolates (42%) harbored transposon Tn1688_qac (ermC), conferring tolerance to quaternary ammonium compounds. Five plasmids were identified in 13 isolates from seafood and the FPE. This is the first One Health study reporting on L. monocytogenes genetic diversity, virulence and resistance profiles from various types of seafood and its FPE in South Africa.
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Affiliation(s)
| | | | - Diane Rip
- Department of Food Science, Stellenbosch University, 7602, South Africa
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Gana J, Gcebe N, Moerane R, Ngoshe Y, Tshuma T, Moabelo K, Adesiyun A. Antimicrobial Resistance Profiles of Listeria Species Recovered from Retail Outlets in Gauteng Province, South Africa. J Food Prot 2024; 87:100322. [PMID: 38944055 DOI: 10.1016/j.jfp.2024.100322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/01/2024]
Abstract
The study determined the antimicrobial resistance (AMR) profiles of Listeria spp. (L. monocytogenes, L. innocua, and L. welshimeri) recovered from beef and beef products sold at retail outlets in Gauteng Province, South Africa. A total of 112 isolates of Listeria spp., including L. monocytogenes (37), L. innocua (65), and L. welshimeri (10), were recovered from beef and beef products collected from 48 retail outlets. Listeria spp. was recovered by direct selective plating following selective enrichment, and PCR was used to confirm and characterize recovered isolates. The disc diffusion method determined the resistance to 16 antimicrobial agents. All 112 isolates of Listeria spp. exhibited resistance to one or more antibiotics (P < 0.05). The prevalence of AMR in Listeria isolates was high for nalidixic acid (99.1%) and cefotaxime (80.4%) but low for gentamycin (2.7%), sulfamethoxazole-trimethoprim (3.6%), azithromycin (5.4%), and doxycycline (6.3%). Overall, for the three species of Listeria, the prevalence of resistance varied significantly only for streptomycin (P = 0.016) and tetracycline (P = 0.034). Multidrug-resistant isolates were detected in 75.7% (28/37), 61.5% (40/65), and 80% (8/10) isolates of L. monocytogenes, L. innocua, and L. welshimeri, respectively. The prevalence of AMR was significantly affected by the location and size of retail outlets, type of beef and beef products, and serogroups of L. monocytogenes. The high prevalence of AMR, particularly among the L. monocytogenes isolates, poses potential therapeutic implications for human consumers of contaminated beef products. There is, therefore, a need to regulate and enforce the use of antimicrobial agents in humans and animals in South Africa.
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Affiliation(s)
- James Gana
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa; Department of Agricultural Education, Federal College of Education, P.M.B. 39, Kontagora, Niger State, Nigeria
| | - Nomakorinte Gcebe
- Bacteriology Department, Onderstepoort Veterinary Research, Agricultural Research Council, South Africa
| | - Rebone Moerane
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa
| | - Yusuf Ngoshe
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa
| | - Takula Tshuma
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa
| | - Khomotso Moabelo
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa
| | - Abiodun Adesiyun
- Department of Production Animal Studies, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, Pretoria 0110, South Africa; Department of Basic Veterinary Sciences, School of Veterinary Medicine, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago.
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Sarr M, Alou MT, Padane A, Diouf FS, Beye M, Sokhna C, Fenollar F, Mboup S, Raoult D, Million M. A review of the literature of Listeria monocytogenes in Africa highlights breast milk as an overlooked human source. Front Microbiol 2023; 14:1213953. [PMID: 38173673 PMCID: PMC10761537 DOI: 10.3389/fmicb.2023.1213953] [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: 04/28/2023] [Accepted: 11/29/2023] [Indexed: 01/05/2024] Open
Abstract
According to the latest WHO estimates (2015) of the global burden of foodborne diseases, Listeria monocytogenes is responsible for one of the most serious foodborne infections and commonly results in severe clinical outcomes. The 2013 French MONALISA prospective cohort identified that women born in Africa has a 3-fold increase in the risk of maternal neonatal listeriosis. One of the largest L. monocytogenes outbreaks occurred in South Africa in 2017-2018 with over 1,000 cases. Moreover, recent findings identified L. monocytogenes in human breast milk in Mali and Senegal with its relative abundance positively correlated with severe acute malnutrition. These observations suggest that the carriage of L. monocytogenes in Africa should be further explored, starting with the existing literature. For that purpose, we searched the peer-reviewed and grey literature published dating back to 1926 to date using six databases. Ultimately, 225 articles were included in this review. We highlighted that L. monocytogenes is detected in various sample types including environmental samples, food samples as well as animal and human samples. These studies were mostly conducted in five east African countries, four west African countries, four north African countries, and two Southern African countries. Moreover, only ≈ 0.2% of the Listeria monocytogenes genomes available on NCBI were obtained from African samples, contracted with its detection. The pangenome resulting from the African Listeria monocytogenes samples revealed three clusters including two from South-African strains as well as one consisting of the strains isolated from breast milk in Mali and Senegal and, a vaginal post-miscarriage sample. This suggests there was a clonal complex circulating in Mali and Senegal. As this clone has not been associated to infections, further studies should be conducted to confirm its circulation in the region and explore its association with foodborne infections. Moreover, it is apparent that more resources should be allocated to the detection of L. monocytogenes as only 15/54 countries have reported its detection in the literature. It seems paramount to map the presence and carriage of L. monocytogenes in all African countries to prevent listeriosis outbreaks and the related miscarriages and confirm its association with severe acute malnutrition.
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Affiliation(s)
- Marièma Sarr
- Aix Marseille University, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Campus Commun UCAD-IRD of Hann, Dakar, Senegal
- Institut de Recherche en Santé, de Surveillance Épidémiologique et de Formation (IRESSEF), Dakar, Senegal
| | - Maryam Tidjani Alou
- Aix Marseille University, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Abdou Padane
- Institut de Recherche en Santé, de Surveillance Épidémiologique et de Formation (IRESSEF), Dakar, Senegal
| | - Fatou Samba Diouf
- Aix Marseille University, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- Campus Commun UCAD-IRD of Hann, Dakar, Senegal
| | - Mamadou Beye
- Aix Marseille University, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Cheikh Sokhna
- Campus Commun UCAD-IRD of Hann, Dakar, Senegal
- Aix Marseille University, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - Florence Fenollar
- IHU-Méditerranée Infection, Marseille, France
- Aix Marseille University, IRD, AP-HM, SSA, VITROME, Marseille, France
| | - Souleymane Mboup
- Institut de Recherche en Santé, de Surveillance Épidémiologique et de Formation (IRESSEF), Dakar, Senegal
| | - Didier Raoult
- Aix Marseille University, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Matthieu Million
- Aix Marseille University, IRD, AP-HM, MEPHI, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
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Wiśniewski P, Chajęcka-Wierzchowska W, Zadernowska A. Impact of High-Pressure Processing (HPP) on Listeria monocytogenes-An Overview of Challenges and Responses. Foods 2023; 13:14. [PMID: 38201041 PMCID: PMC10778341 DOI: 10.3390/foods13010014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/12/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024] Open
Abstract
High-pressure processing (HPP) is currently one of the leading methods of non-thermal food preservation as an alternative to traditional methods based on thermal processing. The application of HPP involves the simultaneous action of a combination of several factors-pressure values (100-600 MPa), time of operation (a few-several minutes), and temperature of operation (room temperature or lower)-using a liquid medium responsible for pressure transfer. The combination of these three factors results in the inactivation of microorganisms, thus extending food shelf life and improving the food's microbiological safety. HPP can provide high value for the sensory and quality characteristics of products and reduce the population of pathogenic microorganisms such as L. monocytogenes to the required safety level. Nevertheless, the technology is not without impact on the cellular response of pathogens. L. monocytogenes cells surviving the HPP treatment may have multiple damages, which may impact the activation of mechanisms involved in the repair of cellular damage, increased virulence, or antibiotic resistance, as well as an increased expression of genes encoding pathogenicity and antibiotic resistance. This review has demonstrated that HPP is a technology that can reduce L. monocytogenes cells to below detection levels, thus indicating the potential to provide the desired level of safety. However, problems have been noted related to the possibilities of cell recovery during storage and changes in virulence and antibiotic resistance due to the activation of gene expression mechanisms, and the lack of a sufficient number of studies explaining these changes has been reported.
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Affiliation(s)
- Patryk Wiśniewski
- Department of Food Microbiology, Meat Technology and Chemistry, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland; (W.C.-W.); (A.Z.)
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Szymczak B. Phenotypic and Genotypic Characteristics of Non-Hemolytic L. monocytogenes Isolated from Food and Processing Environments. Foods 2023; 12:3630. [PMID: 37835283 PMCID: PMC10572806 DOI: 10.3390/foods12193630] [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: 09/07/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Increasingly, Listeria monocytogenes (LM) with atypical phenotypic and genotypic characteristics are being isolated from food, causing problems with their classification and testing. From 2495 soil, food, and swab samples from the food industry, 262 LM isolates were found. A total of 30 isolates were isolated, mainly from soil and plant food, and were classified as atypical LM (aLM) because they lacked the ability to move (30/11.4%) and perform hemolysis (25/9.5%). The isolation environment affected aLM incidence, cell size, sugar fermentation capacity, antibiotic sensitivity, and the number of virulence genes. Therefore, despite several characteristics differentiating all aLMs/non-hemolytic isolates from reference LMs, the remaining phenotypic characteristics were specific to each aLM isolate (like a fingerprint). The aLM/non-hemolytic isolates, particularly those from the soil and meat industries, showed more variability in their sugar fermentation capacity and were less sensitive to antibiotics than LMs. As many as 11 (36.7%) aLM isolates had resistance to four different antibiotics or simultaneously to two antibiotics. The aLM isolates possessed 3-7 of the 12 virulence genes: prfA and hly in all aLMs, while iap was not present. Only five (16.7%) isolates were classified into serogroups 1/2c-3c or 4a-4c. The aLM/non-hemolytic isolates differed by many traits from L. immobilis and atypical L. innocua. The reference method of reviving and isolating LM required optimization of aLM. Statistical analyses of clustering, correlation, and PCA showed similarities and differences between LM and aLM/non-hemolytic isolates due to individual phenotypic traits and genes. Correlations were found between biochemical traits, antibiotic resistance, and virulence genes. The increase in the incidence of atypical non-hemolytic LM may pose a risk to humans, as they may not be detected by ISO methods and have greater antibiotic resistance than LM. aLM from LM can be distinguished based on lack of hemolysis, motility, growth at 4 °C, ability to ferment D-arabitol, and lack of six specific genes.
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Affiliation(s)
- Barbara Szymczak
- Department of Applied Microbiology and Human Nutrition Physiology, Faculty of Food Science and Fisheries, West Pomeranian University of Technology, Papieża Pawła VI 3, 71-459 Szczecin, Poland
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Xu X, Shan Y, Cen Y, Zhao J, Yang X, Liu R, Tan Q, Ma Y, He M, Zhang J, Yang F, Yu S. Clinical Characteristics and Treatment of Listeria monocytogenes Infections in the Central Nervous System. Infect Drug Resist 2023; 16:5899-5909. [PMID: 37700798 PMCID: PMC10493144 DOI: 10.2147/idr.s424012] [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: 06/02/2023] [Accepted: 08/18/2023] [Indexed: 09/14/2023] Open
Abstract
Purpose Listeria monocytogenes infections are rare in the central nervous system (CNS) and frequently difficult-to-diagnose. Our goal is to assess CNS listeriosis patients' clinical characteristics, diagnosis, treatment, and prognosis. Patients and Methods Patients with CNS listeriosis admitted to the Department of neurology, the first medical center of the Chinese PLA general hospital, were enrolled in this study from March 2018 to August 2022. Results This study analyzed eight adults, including five males and three females. The average age of onset was (50.25 ± 11.52) years. The clinical manifestations included fever, headache, altered mental status, vomiting, seizures, neck rigidity, hemiplegia and cranial nerve palsies. Cerebrospinal fluid (CSF) tests revealed intracranial hypertension, elevated cell count and protein concentration, and decreased glucose levels. The positive rates of blood and CSF culture were 40% and 28.57%, respectively. All patients underwent CSF metagenomic next-generation sequencing (mNGS), with a 100% positive rate and the specific read number 12-20394. Magnetic resonance imaging (MRI) exhibited leptomeningitis, meningoencephalitis, and brain abscess, and no specific changes were discovered in two patients. All patients received antibiotic treatment, seven were cured, and one died. Conclusion Monitoring the proportion of monocytes in blood and mNGS results of CSF can play a crucial role in diagnosing pathogens. Early and sufficient application of two to three sensitive antibiotics with a BBB permeability of 20-30% for at least 2-3 months can significantly improve CNS listeriosis prognosis.
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Affiliation(s)
- Xiaojiao Xu
- School of Medicine, Nankai University, Tianjin, 300071, People’s Republic of China
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
| | - Yuheng Shan
- Department of Neurology, Characteristic Medical Centre of People’s Armed Police Force, Tianjin, 300162, People’s Republic of China
| | - Yuying Cen
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
- Medical School of Chinese PLA, Beijing, 100853, People’s Republic of China
| | - Jiahua Zhao
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
- Medical School of Chinese PLA, Beijing, 100853, People’s Republic of China
| | - Xiaosa Yang
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
- Medical School of Chinese PLA, Beijing, 100853, People’s Republic of China
| | - Rui Liu
- School of Medicine, Nankai University, Tianjin, 300071, People’s Republic of China
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
| | - Qingche Tan
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
| | - Yubao Ma
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
| | - Mianwang He
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
| | - Jiatang Zhang
- School of Medicine, Nankai University, Tianjin, 300071, People’s Republic of China
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
- Medical School of Chinese PLA, Beijing, 100853, People’s Republic of China
| | - Fei Yang
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
| | - Shengyuan Yu
- Department of Neurology, The First Medical Centre, Chinese PLA General Hospital, Beijing, 100853, People’s Republic of China
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Lachtara B, Wieczorek K, Osek J. Antimicrobial resistance of Listeria monocytogenes serogroups IIa and IVb from food and food-production environments in Poland. J Vet Res 2023; 67:373-379. [PMID: 37786847 PMCID: PMC10541657 DOI: 10.2478/jvetres-2023-0050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/18/2023] [Indexed: 10/04/2023] Open
Abstract
Introduction Listeria monocytogenes is an important foodborne pathogen responsible for human listeriosis, which is a disease with high hospitalisation and mortality rates. The bacteria are usually susceptible to most antibacterial substances, but resistance to some of them has been recently observed. The present study introduces the evidence on the emergence of antibiotic resistance among L. monocytogenes strains isolated from food and food-production environments in Poland. Material and Methods A total of 283 L. monocytogenes isolates classified into serogroups IIa and IVb which had been recovered from food and food production environments were tested with 17 antimicrobials. These included those that are recommended for treatment of severe listeriosis cases in humans. A multiplex PCR was used to identify serogroups, and a microbroth dilution method was applied for the determination of antibiotic resistance among the isolates tested. Results Only 34 (12.0%) strains were susceptible to all the antimicrobials used in the study. The remaining 249 (88.0%) strains displayed different instances of resistance to the antimicrobials tested, from insusceptibility to one (112 strains; 39.6%) to resistance to four antibacterial substances (6 strains; 2.1%). Among them, there were 38 strains (13.4%) with multiresistance patterns. Conclusion Polish food and its processing environments may be a potential source of antimicrobial-resistant L. monocytogenes, which may pose a potential health risk to consumers in the country.
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Affiliation(s)
- Beata Lachtara
- Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, 24-100Puławy, Poland
| | - Kinga Wieczorek
- Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, 24-100Puławy, Poland
| | - Jacek Osek
- Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, 24-100Puławy, Poland
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Tayeb BA, Mohamed-Sharif YH, Choli FR, Haji SS, Ibrahim MM, Haji SK, Rasheed MJ, Mustafa NA. Antimicrobial Susceptibility Profile of Listeria monocytogenes Isolated from Meat Products: A Systematic Review and Meta-Analysis. Foodborne Pathog Dis 2023; 20:315-333. [PMID: 37389828 DOI: 10.1089/fpd.2023.0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023] Open
Abstract
The objective of this study was to conduct a systematic review to comprehensively understand antimicrobial resistance (AMR) in Listeria monocytogenes (LM) isolated from meat and meat products. The study was performed following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Published articles from 2000 to 2022 were collected from six widely used online databases, including AGRICOLA, PubMed, Web of Science (WoS), Scopus, Cochrane Library, and CINAHL-EBSCO. Prevalence rates and AMR of pathogen isolates were analyzed using MedCalc software, including the I2 statistic and Cochrane Q test for heterogeneity. Sensitivity analysis, subgroup analysis, and meta-regression were conducted to analyze potential sources of heterogeneity at a 95% significance level. The distribution and prevalence of multidrug resistance (MDR) were examined using a random-effect model. The pooled frequency of bacterial MDR was 22.97% (95% confidence interval [CI] = 14.95-32.13). The studies exhibited high heterogeneity (I2 = 94.82%, 95% CI = 93.74-95.71, p < 0.0001). Furthermore, the most prevalent antibiotics resistance found in the majority of included studies were tetracycline, clindamycin, penicillin, ampicillin, and oxacillin (I2 = 86.66%, 95% CI = 73.20-93.36, p < 0.0001). This meta-analysis provides a comprehensive understanding of AMR in LM isolates, and the results indicate that none of the variable factors, including sampling location, sampling size, or methodology, significantly influenced the outcome of LM isolates resistant to multidrug.
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Affiliation(s)
- Bizhar Ahmed Tayeb
- Institute of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
- Department of Laboratory, Directorate of Veterinary in Duhok, Duhok, Iraq
| | - Yousif Hamed Mohamed-Sharif
- Department of Food Microbiology, Ibrahim Khlail-Habur International Border, New-Standard Company, Zakho, Iraq
| | - Farhad Ramadhan Choli
- Food Safety and Animal Health Department, Veterinary Directorate in Duhok, Duhok, Iraq
| | - Shamal Subhi Haji
- Department of Food Microbiology, Ibrahim Khlail-Habur International Border, New-Standard Company, Zakho, Iraq
| | - Mohammed Mahmood Ibrahim
- Food Industry Department, Standardization and Quality Control Authority, Directorate of Quality Control, Zakho, Iraq
| | - Shana Khalid Haji
- Department of Food Microbiology, Ibrahim Khlail-Habur International Border, New-Standard Company, Zakho, Iraq
| | - Mohammed Jomaa Rasheed
- Food Industry Department, Standardization and Quality Control Authority, Directorate of Quality Control, Zakho, Iraq
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Abou Elez RMM, Elsohaby I, Al-Mohammadi AR, Seliem M, Tahoun ABMB, Abousaty AI, Algendy RM, Mohamed EAA, El-Gazzar N. Antibacterial and anti-biofilm activities of probiotic Lactobacillus plantarum against Listeria monocytogenes isolated from milk, chicken and pregnant women. Front Microbiol 2023; 14:1201201. [PMID: 37538844 PMCID: PMC10394229 DOI: 10.3389/fmicb.2023.1201201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 07/07/2023] [Indexed: 08/05/2023] Open
Abstract
Listeria monocytogenes (L. monocytogenes) is a foodborne pathogen that poses significant risks to public health and food safety. The present study aimed to identify the presence of Listeria spp. in various samples, including pasteurized milk, chicken fillets, and stool samples from pregnant women in Sharkia Governorate, Egypt. Additionally, the study identified the serotypes, virulence-associated genes, antimicrobial resistance patterns, and biofilm formation in L. monocytogenes isolates. Moreover, the antibacterial and anti-biofilm activity of Lactobacillus plantarum ATCC 14917 (L. plantarum) against L. monocytogenes isolates was investigated. A cross-sectional study was conducted from August 2021 to January 2022 to collect 300 samples of pasteurized milk, chicken fillets, and stool from pregnant women admitted to outpatient clinics of hospitals. The results showed that 32.7% of the samples were positive for Listeria spp., including L. innocua (48.9%), L. monocytogenes (26.5%), L. ivanovii (14.3%), L. grayi (5.1%), and L. welshimeri (5.1%). Among all L. monocytogenes isolates, hlyA, actA, inlC, and inlJ virulence-associated genes were detected. However, the virulence genes plcB, iap, and inlA were found in 10 (38.5%), 8 (30.8%), and 25 (96.2%) isolates, respectively. The L. monocytogenes isolates classified into four serotypes (1/2a, 1/2b, 1/2c, and 4b), with 1/2a and 4b each identified in 30.8% of the isolates, while 1/2b and 1/2c were identified in 19.2% of the isolates. All L. monocytogenes isolates showed 100% resistance to streptomycin, kanamycin, and nalidix acid, and 92.3% of isolates showed gentamicin resistance. However, all isolates were susceptible to ampicillin and ampicillin/sulbactam. Multidrug resistance (MDR) was observed in 20 (76.9%) L. monocytogenes isolates. The biofilm formation ability of 26 L. monocytogenes isolates was evaluated at different incubation temperatures. At 4°C, 25°C, and 37°C, 53.8, 69.2, and 80.8% of the isolates, respectively, were biofilm producers. Furthermore, 23.1% were strong biofilm producers at both 4°C and 25°C, while 34.6% were strong biofilm formers at 37°C. Treating L. monocytogenes isolates with L. plantarum cell-free supernatant (CFS) reduced the number of biofilm-producing isolates to 15.4, 42.3, and 53.8% at 4°C, 25°C, and 37°C, respectively. L. plantarum's CFS antibacterial activity was tested against six virulent, MDR, and biofilm-forming L. monocytogenes isolates. At a concentration of 5 μg/mL of L. plantarum CFS, none of the L. monocytogenes isolates exhibited an inhibition zone. However, an inhibition zone was observed against L. monocytogenes strains isolated from pasteurized milk and pregnant women's stools when using a concentration of 10 μg/mL. Transmission electron microscopy (TEM) revealed that L. plantarum CFS induced morphological and intracellular structural changes in L. monocytogenes. In conclusion, this study identified virulent MDR L. monocytogenes isolates with strong biofilm-forming abilities in food products in Egypt, posing significant risks to food safety. Monitoring the prevalence and antimicrobial resistance profile of L. monocytogenes in dairy and meat products is crucial to enhance their safety. Although L. plantarum CFS showed potential antibacterial and anti-biofilm effects against L. monocytogenes isolates, further research is needed to explore its full probiotic potential.
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Affiliation(s)
- Rasha M. M. Abou Elez
- Department of Zoonoses, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Ibrahim Elsohaby
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
- Centre for Applied One Health Research and Policy Advice (OHRP), City University of Hong Kong, Kowloon, Hong Kong SAR, China
- Department of Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | | | - Marwa Seliem
- Department of Zoonoses, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Asmaa B. M. B. Tahoun
- Department of Food Hygiene, Safety and Technology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Amira I. Abousaty
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Reem M. Algendy
- Department of Food Hygiene, Safety and Technology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Eman A. A. Mohamed
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Nashwa El-Gazzar
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig, Egypt
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van Duijkeren E, Rantala M, Bouchard D, Busani L, Catry B, Kaspar H, Pomba C, Moreno MA, Nilsson O, Ružauskas M, Sanders P, Teale C, Wester AL, Ignate K, Jukes H, Kunsagi Z, Schwarz C. The use of aminopenicillins in animals within the EU, emergence of resistance in bacteria of animal and human origin and its possible impact on animal and human health. J Antimicrob Chemother 2023:7179861. [PMID: 37229552 DOI: 10.1093/jac/dkad157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
Aminopenicillins have been widely used for decades for the treatment of various infections in animals and humans in European countries. Following this extensive use, acquired resistance has emerged among human and animal pathogens and commensal bacteria. Aminopenicillins are important first-line treatment options in both humans and animals, but are also among limited therapies for infections with enterococci and Listeria spp. in humans in some settings. Therefore, there is a need to assess the impact of the use of these antimicrobials in animals on public and animal health. The most important mechanisms of resistance to aminopenicillins are the β-lactamase enzymes. Similar resistance genes have been detected in bacteria of human and animal origin, and molecular studies suggest that transmission of resistant bacteria or resistance genes occurs between animals and humans. Due to the complexity of epidemiology and the near ubiquity of many aminopenicillin resistance determinants, the direction of transfer is difficult to ascertain, except for major zoonotic pathogens. It is therefore challenging to estimate to what extent the use of aminopenicillins in animals could create negative health consequences to humans at the population level. Based on the extent of use of aminopenicillins in humans, it seems probable that the major resistance selection pressure in human pathogens in European countries is due to human consumption. It is evident that veterinary use of these antimicrobials increases the selection pressure towards resistance in animals and loss of efficacy will at minimum jeopardize animal health and welfare.
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Affiliation(s)
- Engeline van Duijkeren
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Utrecht, The Netherlands
| | - Merja Rantala
- Faculty of Veterinary Medicine, University of Helsinki, Helsinki, Finland
| | - Damien Bouchard
- French Agency for Food, Environmental, and Occupational Health and Safety, National Agency for Veterinary Medicinal Products, Fougères, France
| | - Luca Busani
- Instituto Superiore di Sanita, Center for Gender-Specific Medicine, Rome, Italy
| | - Boudewijn Catry
- Sciensano, Department of Epidemiology and Public Health, Brussels, Belgium
- Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Heike Kaspar
- Federal Office of Consumer Protection and Food Safety, Department Method Standardisation, Reference Laboratories, Resistance to Antibiotics, Berlin, Germany
| | - Constança Pomba
- Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
| | - Miguel A Moreno
- Faculty of Veterinary Medicine, Complutense University, Madrid, Spain
| | - Oskar Nilsson
- National Veterinary Institute, SVA, Department of Animal Health and Antimicrobial Strategies, Uppsala, Sweden
| | - Modestas Ružauskas
- Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Pascal Sanders
- French Agency for Food, Environmental, and Occupational Health and Safety, Strategy and Programme Department, Maisons-Alfort, France
| | | | | | | | - Helen Jukes
- European Medicines Agency, Amsterdam, The Netherlands
| | | | - Christine Schwarz
- Federal Office of Consumer Protection and Food Safety, Department Method Standardisation, Reference Laboratories, Resistance to Antibiotics, Berlin, Germany
- Federal Office of Consumer Protection and Food Safety, Veterinary Drugs, Berlin, Germany
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12
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Obaidat MM, AlShehabat IA. High multidrug resistance of Listeria monocytogenes and association with water sources in sheep and goat dairy flocks in Jordan. Prev Vet Med 2023; 215:105922. [PMID: 37084631 DOI: 10.1016/j.prevetmed.2023.105922] [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: 07/21/2022] [Revised: 04/03/2023] [Accepted: 04/14/2023] [Indexed: 04/23/2023]
Abstract
Listeria monocytogenes is a significant pathogen that causes listeriosis in humans and small ruminants. This study aimed to estimate the prevalence, antimicrobial resistance and risk factors of L. monocytogenes in small dairy ruminants in Jordan. A total of 948 milk samples were collected from 155 sheep and goat flocks across Jordan. L. monocytogenes was isolated from the samples, confirmed and tested for 13 clinically important antimicrobials. Data were also collected on the husbandry practices to identify risk factors for the presence of L. monocytogenes. The results showed that the flock-level prevalence of L. monocytogenes was 20.0% (95% CI; 14.46%-26.99%) and the prevalence in the individual milk samples was 6.43% (95% CI; 4.92%-8.36%). The univariable (UOR=2.65, p = 0.021) and multivariable (AOR=2.49, p = 0.028) analyses showed that using water from municipality pipelines as a water source in the flock reduced L. monocytogenes prevalence. All L. monocytogenes isolates were resistant to at least one antimicrobial. High percentages of the isolates were resistant to ampicillin (83.6%), streptomycin (79.3%), kanamycin (75.0%), quinupristin/dalfopristin (63.8%) and clindamycin (61.2%). About 83.6% of the isolates (94.2% and 75% of the sheep and goat isolates) exhibited multidrug resistance (resistance to ≥3 antimicrobial classes). In addition, the isolates exhibited fifty unique antimicrobial resistance profiles. Thus, it's recommended to restrict the misuse of clinically important antimicrobials and to chlorinate and monitor the water sources in sheep and goat flocks.
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Affiliation(s)
- Mohammad M Obaidat
- Department of Vet. Pathol.and Public Health, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Ar-Ramtha, Irbid, Jordan.
| | - Issa A AlShehabat
- Department of Vet. Pathol.and Public Health, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Ar-Ramtha, Irbid, Jordan
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13
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Scarponi D, ranalli M, Bedetti L, Miselli F, Rossi K, Iughetti L, Lugli L, Berardi A. La listeriosi neonatale e materno-fetale. MEDICO E BAMBINO 2023; 42:177-182. [DOI: 10.53126/meb42177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/18/2023]
Abstract
Listeriosis is a foodborne condition associated with the ingestion of food contaminated by Listeria monocytogenes that can cause serious health consequences in neonates and pregnant women. In these groups the incidence of the disease is higher due to the relative immunocompromised state and the particular Listeria monocytogenes tropism for the placenta. The paediatrician and the neonatologist must therefore be able to recognize the signs and symptoms of the disease promptly so as to set up an adequate treatment according to the most recent international guidelines. This article provides epidemiological data and describes the pathophysiology and clinical manifestations of maternal-foetal and neonatal listeriosis, as well as the therapeutic indications according to very recent recommendations.
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Affiliation(s)
- Davide Scarponi
- Scuola di Specializzazione in Pediatria, AOU Policlinico di Modena
| | - Marco ranalli
- Scuola di Specializzazione in Pediatria, AOU Policlinico di Modena
| | - Luca Bedetti
- Terapia Intensiva Neonatale, AOU Policlinico di Modena
| | | | - katia Rossi
- Terapia Intensiva Neonatale, AOU Policlinico di Modena
| | | | - Licia Lugli
- Terapia Intensiva Neonatale, AOU Policlinico di Modena
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14
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Santativongchai P, Tulayakul P, Jeon B. Enhancement of the Antibiofilm Activity of Nisin against Listeria monocytogenes Using Food Plant Extracts. Pathogens 2023; 12:pathogens12030444. [PMID: 36986366 PMCID: PMC10056046 DOI: 10.3390/pathogens12030444] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/02/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Listeria monocytogenes is a foodborne pathogen exhibiting a high mortality rate. In addition to the robust tolerance to environmental stress, the ability of L. monocytogenes to develop biofilms increases the risk of contaminating food processing facilities and ultimately foods. This study aims to develop a synergistic approach to better control Listeria biofilms using nisin, the only bacteriocin approved as a food preservative, in combination with gallic-acid-rich food plant extracts. Biofilm assays in the presence of nisin and gallic acid or its derivatives revealed that gallic acid significantly decreased the level of biofilm formation in L. monocytogenes, whereas ethyl gallate, propyl gallate, and lauryl gallate enhanced biofilm production. As gallic acid is widely distributed in plants, we examined whether extracts from gallic-acid-rich food plants, such as clove, chestnut, oregano, and sage, may generate similar antibiofilm effects. Remarkably, sage extracts enhanced the antibiofilm activity of nisin against L. monocytogenes; however, the other tested extracts increased biofilm formation, particularly at high concentrations. Moreover, sage extracts and nisin combinations significantly reduced the biofilm formation of L. monocytogenes on stainless steel. Sage is a common food spice and has various beneficial health effects, including antioxidation and anti-cancer properties. The findings in this study demonstrate that sage extracts can be potentially combined with nisin to prevent biofilm production in L. monocytogenes.
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Affiliation(s)
- Pitchaya Santativongchai
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, St. Paul, MN 55108, USA
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Phitsanu Tulayakul
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Byeonghwa Jeon
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, St. Paul, MN 55108, USA
- Correspondence:
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15
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Manyi-Loh CE, Okoh AI, Lues R. Occurrence and Multidrug Resistance in Strains of Listeria monocytogenes Recovered from the Anaerobic Co-Digestion Sludge Contained in a Single Stage Steel Biodigester: Implications for Antimicrobial Stewardship. Microorganisms 2023; 11:microorganisms11030725. [PMID: 36985298 PMCID: PMC10056191 DOI: 10.3390/microorganisms11030725] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
L. monocytogenes is a zoonotic foodborne pathogen with inherent adaptability to tolerate environmental and physiological stresses, thereby causing severe disease outbreaks. Antibiotic resistant foodborne pathogens are a challenge to the food industry. A total of 18 samples were pooled from a bio-digester co-digesting swine manure/pinewood sawdust, and evaluated for the occurrence of bacterium plus total viable counts using the spread plate method. The recovered bacterial isolates were presumptively identified by growth on selective medium and confirmed by biochemical characterisation, leading to the isolation of 43 L. monocytogenes. The isolates were characterized based on their susceptibility to antibiotics via the Kirby-Bauer disc diffusion technique against a panel of 14 antibiotics. Equally, the multiple antibiotic resistance (MAR) index was calculated, and MAR phenotypes generated. The bacterial counts were between 102 and104 cfu/mL. Complete susceptibility (100%) was demonstrated to ampicillin, gentamicin and sulfamethoxazole, which are the drugs of choice in the treatment of listeriosis. In addition, intermediate sensitivity occurred at 25.58% to cefotaxime, and the highest resistance (51.16%) was exhibited against nalidixic acid. The MAR index ranged from 0 to 0.71. Overall, 41.86% of the Listeria isolates displayed multidrug resistance, with 18 different MAR phenotypes, demonstrating CIP, E, C, TET, AUG, S, CTX, NA, AML, NI as the greatest MAR phenotype. It can be concluded that the isolates yielding MAR > 0.2 originated from the farm, where antibiotics had been in routine use. Therefore, strict monitoring of antibiotics use in the farm is crucial to mitigate further increase in antibiotic resistance amongst these bacterial isolates.
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Affiliation(s)
- Christy Echakachi Manyi-Loh
- Centre of Applied Food Sustainability and Biotechnology (CAFSaB), Central University of Technology, Bloemfontein 9301, South Africa
- Correspondence: ; Tel.: +27-738324268
| | - Anthony Ifeanyin Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa;
- Department of Environmental Health Sciences, College of Health Sciences, University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
| | - Ryk Lues
- Centre of Applied Food Sustainability and Biotechnology (CAFSaB), Central University of Technology, Bloemfontein 9301, South Africa
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Genetic Characterization of Listeria from Food of Non-Animal Origin Products and from Producing and Processing Companies in Bavaria, Germany. Foods 2023; 12:foods12061120. [PMID: 36981047 PMCID: PMC10048318 DOI: 10.3390/foods12061120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
Reported cases of listeriosis from food of non-animal origin (FNAO) are increasing. In order to assess the risk of exposure to Listeria monocytogenes from FNAO, the genetic characterization of the pathogen in FNAO products and in primary production and processing plants needs to be investigated. For this, 123 samples of fresh and frozen soft fruit and 407 samples of 39 plants in Bavaria, Germany that produce and process FNAO were investigated for Listeria contamination. As a result, 64 Listeria spp. isolates were detected using ISO 11290-1:2017. Environmental swabs and water and food samples were investigated. L. seeligeri (36/64, 56.25%) was the most frequently identified species, followed by L. monocytogenes (8/64, 12.50%), L. innocua (8/64, 12.50%), L. ivanovii (6/64, 9.38%), L. newyorkensis (5/64, 7.81%), and L. grayi (1/64, 1.56%). Those isolates were subsequently sequenced by whole-genome sequencing and subjected to pangenome analysis to retrieve data on the genotype, serotype, antimicrobial resistance (AMR), and virulence markers. Eight out of sixty-four Listeria spp. isolates were identified as L. monocytogenes. The serogroup analysis detected that 62.5% of the L. monocytogenes isolates belonged to serogroup IIa (1/2a and 3a) and 37.5% to serogroup IVb (4b, 4d, and 4e). Furthermore, the MLST (multilocus sequence typing) analysis of the eight detected L. monocytogenes isolates identified seven different sequence types (STs) and clonal complexes (CCs), i.e., ST1/CC1, ST2/CC2, ST6/CC6, ST7/CC7, ST21/CC21, ST504/CC475, and ST1413/CC739. The core genome MLST analysis also showed high allelic differences and suggests plant-specific isolates. Regarding the AMR, we detected phenotypic resistance against benzylpenicillin, fosfomycin, and moxifloxacin in all eight L. monocytogenes isolates. Moreover, virulence factors, such as prfA, hly, plcA, plcB, hpt, actA, inlA, inlB, and mpl, were identified in pathogenic and nonpathogenic Listeria species. The significance of L. monocytogenes in FNAO is growing and should receive increasing levels of attention.
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Kim J, Kim JW, Kim HY. Phenotypic and genotypic characterization of Listeria monocytogenes in clinical ruminant cases in Korea. Vet Microbiol 2023; 280:109694. [PMID: 36871522 DOI: 10.1016/j.vetmic.2023.109694] [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: 02/06/2022] [Revised: 02/03/2023] [Accepted: 02/15/2023] [Indexed: 02/21/2023]
Abstract
Listeria monocytogenes, a foodborne human and veterinary pathogen, is associated with high mortality rates in ruminants. However, no studies have investigated the antimicrobial resistance of L. monocytogenes isolates from clinical ruminant cases. This study aimed to determine the phenotypic and genotypic characteristics of L. monocytogenes isolates from clinical cases of Korean ruminants. We collected 24 L. monocytogenes isolates from aborted bovine fetuses and goats presenting with listeriosis-related symptoms. The isolates were subjected to PCR serogrouping, conventional serotyping, virulence gene detection, and antimicrobial susceptibility testing. Furthermore, pulsed-field gel electrophoresis and multilocus sequence typing were used to classify and compare genetic diversity among the isolates, including human L. monocytogenes isolates. The most prevalent L. monocytogenes serotypes were 4b (Ⅳb), 1/2a (Ⅱa; Ⅱc), and 1/2b (Ⅱb). All isolates harbored the virulence genes; however, llsX-encoding listeriolysin were identified only in serotypes 4b and 1/2b. All isolates, including two found in humans, formed three genetically diverse pulsed-field gel electrophoresis clusters according to serotype, lineage, and sequence type. The most prevalent sequence type was ST1, followed by ST365 and ST91. The isolates from ruminants with listeriosis were resistant to oxacillin and ceftriaxone and showed diverse lineage, serotype (serogroup), and sequence type characteristics. Considering that the atypical sequence types exhibited clinical manifestations and histopathological lesions, further study is needed to elucidate the pathogenicity of genetically diverse ruminant L. monocytogenes isolates. Furthermore, continuous monitoring of antimicrobial resistance is required to prevent the emergence of L. monocytogenes strains resistant to common antimicrobials.
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Affiliation(s)
- Jongho Kim
- Animal and Plant Quarantine Agency, Gyeongbuk, Republic of Korea; Jeonbuk National University, Iksan, Republic of Korea
| | - Jong Wan Kim
- Animal and Plant Quarantine Agency, Gyeongbuk, Republic of Korea
| | - Ha-Young Kim
- Animal and Plant Quarantine Agency, Gyeongbuk, Republic of Korea.
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Manyi-Loh CE, Okoh AI, Lues R. Prevalence of Multidrug-Resistant Bacteria (Enteropathogens) Recovered from a Blend of Pig Manure and Pinewood Saw Dust during Anaerobic Co-Digestion in a Steel Biodigester. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:984. [PMID: 36673737 PMCID: PMC9859553 DOI: 10.3390/ijerph20020984] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/19/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
South Africa adopts intensive livestock farming, embracing the employment of huge quantities of antibiotics to meet the increased demand for meat. Therefore, bacteria occurring in the animal products and manure might develop antibiotic resistance, a scenario which threatens public health. The study investigated the occurrence of Gram-negative bacteria from eighteen pooled samples withdrawn from a single-stage steel biodigester co-digesting pig manure (75%) and pine wood saw dust (25%). The viable counts for each bacterium were determined using the spread plate technique. The bacterial isolates were characterised based on cultural, morphological and biochemical characteristics, using the Analytical Profile Index 20 e test kit. In addition, isolates were characterised based on susceptibility to 14 conventional antibiotics via the disc diffusion method. The MAR index was calculated for each bacterial isolate. The bacterial counts ranged from 104 to 106 cfu/mL, indicating manure as a potential source of contamination. Overall, 159 bacterial isolates were recovered, which displayed diverse susceptibility patterns with marked sensitivity to amoxicillin (100% E. coli), streptomycin (96.15% for Yersinia spp.; 93.33% for Salmonella spp.) and 75% Campylobacter spp. to nitrofurantoin. Varying resistance rates were equally observed, but a common resistance was demonstrated to erythromycin (100% of Salmonella and Yersinia spp.), 90.63% of E. coli and 78.57% of Campylobacter spp. A total of 91.19% of the bacterial isolates had a MAR index > 0.2, represented by 94 MAR phenotypes. The findings revealed multidrug resistance in bacteria from the piggery source, suggesting they can contribute immensely to the spread of multidrug resistance; thus, it serves as a pointer to the need for the enforcement of regulatory antibiotic use in piggery farms. Therefore, to curb the level of multidrug resistance, the piggery farm should implement control measures in the study area.
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Affiliation(s)
- Christy Echakachi Manyi-Loh
- Centre of Applied Food Sustainability and Biotechnology (CAFSaB), Central University of Technology, Bloemfontein 9301, South Africa
| | - Anthony Ifeanyin Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa
- Department of Environmental Health Sciences, College of Health Sciences, University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
| | - Ryk Lues
- Centre of Applied Food Sustainability and Biotechnology (CAFSaB), Central University of Technology, Bloemfontein 9301, South Africa
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He R, Zhong Q, Chen W, Zhang M, Pei J, Chen H, Chen W. Transcriptomic and proteomic investigation of metabolic disruption in Listeria monocytogenes triggered by linalool and its application in chicken breast preservation. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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State of Knowledge on the Acquisition, Diversity, Interspecies Attribution and Spread of Antimicrobial Resistance between Humans, Animals and the Environment: A Systematic Review. Antibiotics (Basel) 2022; 12:antibiotics12010073. [PMID: 36671275 PMCID: PMC9854550 DOI: 10.3390/antibiotics12010073] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/06/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Resistance to antibiotics is considered one of the most urgent global public health concerns. It has considerable impacts on health and the economy, being responsible for the failure to treat infectious diseases, higher morbidity and mortality rates, and rising health costs. In spite of the joint research efforts between different humans, animals and the environment, the key directions and dynamics of the spread of antimicrobial resistance (AMR) still remain unclear. The aim of this systematic review is to examine the current knowledge of AMR acquisition, diversity and the interspecies spread of disease between humans, animals and the environment. Using a systematic literature review, based on a One Health approach, we examined articles investigating AMR bacteria acquisition, diversity, and the interspecies spread between humans, animals and the environment. Water was the environmental sector most often represented. Samples were derived from 51 defined animal species and/or their products A large majority of studies investigated clinical samples of the human population. A large variety of 15 different bacteria genera in three phyla (Proteobacteria, Firmicutes and Actinobacteria) were investigated. The majority of the publications compared the prevalence of pheno- and/or genotypic antibiotic resistance within the different compartments. There is evidence for a certain host or compartment specificity, regarding the occurrence of ARGs/AMR bacteria. This could indicate the rather limited AMR spread between different compartments. Altogether, there remains a very fragmented and incomplete understanding of AMR acquisition, diversity, and the interspecies spread between humans, animals and the environment. Stringent One Health epidemiological study designs are necessary for elucidating the principal routes and dynamics of the spread of AMR bacteria between humans, animals and the environment. This knowledge is an important prerequisite to develop effective public health measures to tackle the alarming AMR situation.
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Rodríguez-Melcón C, Esteves A, Panera-Martínez S, Capita R, Alonso-Calleja C. Quantification of Total and Viable Cells and Determination of Serogroups and Antibiotic Resistance Patterns of Listeria monocytogenes in Chicken Meat from the North-Western Iberian Peninsula. Antibiotics (Basel) 2022; 11:antibiotics11121828. [PMID: 36551484 PMCID: PMC9774191 DOI: 10.3390/antibiotics11121828] [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: 10/12/2022] [Revised: 11/19/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Twenty samples of minced chicken meat procured from butcher’s shops in León (Spain; 10 samples) and Vila Real (Portugal; 10 samples) were analyzed. Microbial concentrations (log10 cfu/g) of 7.53 ± 1.02 (viable aerobic microbiota), 7.13 ± 1.07 (psychrotrophic microorganisms), and 4.23 ± 0.88 (enterobacteria) were found. The detection method described in the UNE-EN ISO 11290-1 standard (based on isolation from the chromogenic medium OCLA) with confirmation by the polymerase chain reaction (PCR; lmo1030) (OCLA−PCR), revealed Listeria monocytogenes in 14 samples (70.0% of the total), nine of Spanish origin and five of Portuguese (p > 0.05). The levels of viable and inactivated L. monocytogenes in the samples were determined with a q-PCR using propidium monoazide (PMAxx) as a viability marker. Seven samples tested positive both with the OCLA−PCR and with the q-PCR, with estimated concentrations of viable cells varying between 2.15 log10 cfu/g (detection limit) and 2.94 log10 cfu/g. Three samples tested negative both with the OCLA−PCR and with the q-PCR. Seven samples were positive with the OCLA−PCR, but negative with the q-PCR, and three samples tested negative with the OCLA−PCR and positive with the q-PCR. The percentage of viable cells relative to the total ranged between 2.4% and 86.0%. Seventy isolates of L. monocytogenes (five from each positive sample) were classified in PCR serogroups with a multiplex PCR assay. L. monocytogenes isolates belonged to serogroups IIa (52 isolates; 74.3%), IIc (7; 10.0%), IVa (2; 2.9%), and IVb (9; 12.9%). The susceptibility of the 70 isolates to 15 antibiotics of clinical interest was tested. The strains presented resistance to between three and eight antibiotics. The average number of resistances was greater (p < 0.001) among strains isolated from Spanish samples (6.20 ± 1.08), than in those from Portugal (5.00 ± 1.08). In both groups of strains, a prevalence of resistance higher than 95% was observed for oxacillin, cefoxitin, cefotaxime, and cefepime. The need to handle minced chicken meat correctly, taking care to cook it sufficiently and to avoid cross-contamination, so as to reduce the danger of listeriosis, is emphasized. A combination of culture-dependent and culture-independent methods offers complementary routes for the detection in food of the cells of L. monocytogenes in various different physiological states.
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Affiliation(s)
- Cristina Rodríguez-Melcón
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
| | - Alexandra Esteves
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal
- Veterinary and Animal Research Centre (CECAV), University of Trás-os-Montes e Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - Sarah Panera-Martínez
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
| | - Rosa Capita
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
| | - Carlos Alonso-Calleja
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
- Correspondence:
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Listeria monocytogenes-How This Pathogen Uses Its Virulence Mechanisms to Infect the Hosts. Pathogens 2022; 11:pathogens11121491. [PMID: 36558825 PMCID: PMC9783847 DOI: 10.3390/pathogens11121491] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/23/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Listeriosis is a serious food-borne illness, especially in susceptible populations, including children, pregnant women, and elderlies. The disease can occur in two forms: non-invasive febrile gastroenteritis and severe invasive listeriosis with septicemia, meningoencephalitis, perinatal infections, and abortion. Expression of each symptom depends on various bacterial virulence factors, immunological status of the infected person, and the number of ingested bacteria. Internalins, mainly InlA and InlB, invasins (invasin A, LAP), and other surface adhesion proteins (InlP1, InlP4) are responsible for epithelial cell binding, whereas internalin C (InlC) and actin assembly-inducing protein (ActA) are involved in cell-to-cell bacterial spread. L. monocytogenes is able to disseminate through the blood and invade diverse host organs. In persons with impaired immunity, the elderly, and pregnant women, the pathogen can also cross the blood-brain and placental barriers, which results in the invasion of the central nervous system and fetus infection, respectively. The aim of this comprehensive review is to summarize the current knowledge on the epidemiology of listeriosis and L. monocytogenes virulence mechanisms that are involved in host infection, with a special focus on their molecular and cellular aspects. We believe that all this information is crucial for a better understanding of the pathogenesis of L. monocytogenes infection.
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Sharma S, Dubey G, Singh Sran B, Sharma M, Kaur V, Kaur S, Bharatam PV, Hundal G. Microwave‐Induced Synthesis of Pyridine Based Schiff Bases and Their Applications as Efficient Antimicrobial Textile Dyeing Agents: Experimental and Theoretical Approach. ChemistrySelect 2022. [DOI: 10.1002/slct.202203109] [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)
- Sanyog Sharma
- Department of Chemistry UGC Sponsored-Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
| | - Gurudutt Dubey
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research, S.A.S. Nagar Punjab 160062 India
| | - Balkaran Singh Sran
- Department of Chemistry UGC Sponsored-Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
| | - Mansi Sharma
- Department of Chemistry UGC Sponsored-Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
| | - Varinder Kaur
- Department of Chemistry UGC Sponsored-Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
| | - Sukhraj Kaur
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research, S.A.S. Nagar Punjab 160062 India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research, S.A.S. Nagar Punjab 160062 India
| | - Geeta Hundal
- Department of Chemistry UGC Sponsored-Centre for Advanced Studies-II Guru Nanak Dev University Amritsar 143005 Punjab India
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Lopatek M, Wieczorek K, Osek J. Prevalence and Antimicrobial Resistance of Bacterial Foodborne Pathogens Isolated from Raw Bivalve Molluscs Subjected to Consumption in Poland during a Ten-Year Period. Foods 2022; 11:foods11213521. [PMID: 36360134 PMCID: PMC9657009 DOI: 10.3390/foods11213521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
The aim of this study was to evaluate the microbiological contamination of raw bivalve molluscan shellfish (BMS) available on the Polish market and determinate the antimicrobial resistance of the obtained isolates. A total of 1000 mollusc samples were tested for the presence of Salmonella spp., L. monocytogenes, V. parahaemolyticus, and S. aureus using the ISO standard methods. Additionally, the bacterial isolates’ susceptibility to antimicrobials was determined using the minimum inhibitory concentration (MIC) method. The obtained results showed that Salmonella spp. was detected in 31 (3.1%) samples, and 51.6% of the bacterial isolates were classified as Salmonella Typhimurium. A total of 74.2% of the Salmonella isolates were sensitive to all antimicrobial agents, whereas three isolates were multiresistant. L. monocytogenes was isolated from 18 (1.8%) BMS, and the isolates belonged to serogroups IIa, IIb, and IVb. Most of them were resistant to ceftriaxone (77.8%) and oxacillin (55.6%). V. parahaemolyticus was present in 24.2% BMS. These isolates were mainly resistant to ampicillin (77.3%) and streptomycin (64.0%). Moreover, 15.2% of the bivalve molluscs were contaminated with S. aureus. Most isolates belonging to this species were resistant to penicillin (84.9%). A total of 60 (6.0%) bivalve molluscs were contaminated with more than one pathogen simultaneously. In addition, the tested bacteria were more likely to be identified during the warmer period (53.9%) compared to the samples analyzed in colder months (35.7%). The obtained results indicate that raw bivalve molluscs from the Polish market are frequently contaminated with bacterial foodborne pathogens, which may be resistant to antimicrobials.
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Varsaki A, Ortiz S, Santorum P, López P, López-Alonso V, Hernández M, Abad D, Rodríguez-Grande J, Ocampo-Sosa AA, Martínez-Suárez JV. Prevalence and Population Diversity of Listeria monocytogenes Isolated from Dairy Cattle Farms in the Cantabria Region of Spain. Animals (Basel) 2022; 12:ani12182477. [PMID: 36139336 PMCID: PMC9495194 DOI: 10.3390/ani12182477] [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: 07/29/2022] [Revised: 09/08/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022] Open
Abstract
Simple Summary The origin and prevalence of Listeria monocytogenes was studied in dairy cattle farms in order to examine its diversity and determine its possible persistence in manure. The utilization of manure for agricultural purposes is common in many countries. While properly treated and managed manure is an effective and safe fertilizer, foodborne illness outbreaks can occur, as many of the most prominent foodborne pathogens are carried by healthy livestock. It is, therefore, necessary to study the origin and persistence of zoonotic agents in general and of L. monocytogenes in particular, in order to avoid recirculation in farms and reduce risk for human populations. Abstract Listeria monocytogenes is an opportunistic pathogen that is widely distributed in the environment. Here we show the prevalence and transmission of L. monocytogenes in dairy farms in the Cantabria region, on the northern coast of Spain. A total of 424 samples was collected from 14 dairy farms (5 organic and 9 conventional) and 211 L. monocytogenes isolates were recovered following conventional microbiological methods. There were no statistically significant differences in antimicrobial resistance ratios between organic and conventional farms. A clonal relationship among the isolates was assessed by pulsed field gel electrophoresis (PFGE) analysis and 64 different pulsotypes were obtained. Most isolates (89%, n = 187) were classified as PCR serogroup IVb by using a multiplex PCR assay. In this case, 45 isolates of PCR serogroup IVb were whole genome-sequenced to perform a further analysis at genomic level. In silico MLST analysis showed the presence of 12 sequence types (ST), of which ST1, ST54 and ST666 were the most common. Our data indicate that the environment of cattle farms retains a high incidence of L. monocytogenes, including subtypes involved in human listeriosis reports and outbreaks. This pathogen is shed in the feces and could easily colonize dairy products, as a result of fecal contamination. Effective herd and manure management are needed in order to prevent possible outbreaks.
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Affiliation(s)
- Athanasia Varsaki
- Centro de Investigación y Formación Agrarias (CIFA), 39600 Muriedas, Spain
- Correspondence: (A.V.); (J.V.M.-S.)
| | - Sagrario Ortiz
- National Institute for Agricultural and Food Research and Technology (INIA)-Spanish National Research Council (CSIC), 28040 Madrid, Spain
| | - Patricia Santorum
- Centro de Investigación y Formación Agrarias (CIFA), 39600 Muriedas, Spain
| | - Pilar López
- National Institute for Agricultural and Food Research and Technology (INIA)-Spanish National Research Council (CSIC), 28040 Madrid, Spain
| | | | - Marta Hernández
- Instituto Tecnológico Agrario de Castilla y León (ITACyL), 47071 Valladolid, Spain
| | - David Abad
- Instituto Tecnológico Agrario de Castilla y León (ITACyL), 47071 Valladolid, Spain
| | - Jorge Rodríguez-Grande
- Servicio de Microbiología, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Valdecilla (IDIVAL), 39008 Santander, Spain
| | - Alain A. Ocampo-Sosa
- Servicio de Microbiología, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Valdecilla (IDIVAL), 39008 Santander, Spain
| | - Joaquín V. Martínez-Suárez
- National Institute for Agricultural and Food Research and Technology (INIA)-Spanish National Research Council (CSIC), 28040 Madrid, Spain
- Correspondence: (A.V.); (J.V.M.-S.)
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Zhang Y, Zhang J, Chang X, Qin S, Song Y, Tian J, Ma A. Analysis of 90 Listeria monocytogenes contaminated in poultry and livestock meat through whole-genome sequencing. Food Res Int 2022; 159:111641. [DOI: 10.1016/j.foodres.2022.111641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 07/02/2022] [Accepted: 07/05/2022] [Indexed: 11/26/2022]
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Antibiotic Resistance in Bacteria—A Review. Antibiotics (Basel) 2022; 11:antibiotics11081079. [PMID: 36009947 PMCID: PMC9404765 DOI: 10.3390/antibiotics11081079] [Citation(s) in RCA: 128] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 12/03/2022] Open
Abstract
Background: A global problem of multi-drug resistance (MDR) among bacteria is the cause of hundreds of thousands of deaths every year. In response to the significant increase of MDR bacteria, legislative measures have widely been taken to limit or eliminate the use of antibiotics, including in the form of feed additives for livestock, but also in metaphylaxis and its treatment, which was the subject of EU Regulation in 2019/6. Numerous studies have documented that bacteria use both phenotypis and gentic strategies enabling a natural defence against antibiotics and the induction of mechanisms in increasing resistance to the used antibacterial chemicals. The mechanisms presented in this review developed by the bacteria have a significant impact on reducing the ability to combat bacterial infections in humans and animals. Moreover, the high prevalence of multi-resistant strains in the environment and the ease of transmission of drug-resistance genes between the different bacterial species including commensal flora and pathogenic like foodborne pathogens (E. coli, Campylobacter spp., Enterococcus spp., Salmonella spp., Listeria spp., Staphylococcus spp.) favor the rapid spread of multi-resistance among bacteria in humans and animals. Given the global threat posed by the widespread phenomenon of multi-drug resistance among bacteria which are dangerous for humans and animals, the subject of this study is the presentation of the mechanisms of resistance in most frequent bacteria called as “foodborne pathoges” isolated from human and animals. In order to present the significance of the global problem related to multi-drug resistance among selected pathogens, especially those danger to humans, the publication also presents statistical data on the percentage range of occurrence of drug resistance among selected bacteria in various regions of the world. In addition to the phenotypic characteristics of pathogen resistance, this review also presents detailed information on the detection of drug resistance genes for specific groups of antibiotics. It should be emphasized that the manuscript also presents the results of own research i.e., Campylobacter spp., E. coli or Enetrococcus spp. This subject and the presentation of data on the risks of drug resistance among bacteria will contribute to initiating research in implementing the prevention of drug resistance and the development of alternatives for antimicrobials methods of controlling bacteria.
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Repeated sub-inhibitory doses of cassia essential oil do not increase the tolerance pattern in Listeria monocytogenes cells. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113681] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Assessment of Bacteriocin-Antibiotic Synergy for the Inhibition and Disruption of Biofilms of Listeria monocytogenes and Vancomycin-Resistant Enterococcus. MICROBIOLOGY RESEARCH 2022. [DOI: 10.3390/microbiolres13030033] [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
In this study, we have evaluated the effects of previously characterized bacteriocins produced by E. faecium strains ST651ea, ST7119ea, and ST7319ea, against biofilm formation and biofilms formed by L. monocytogenes ATCC15313 and vancomycin-resistant E. faecium VRE19. The effects of bacteriocins on the biofilms formed by L. monocytogenes ATCC151313 were evaluated by crystal violet assay and further confirmed by quantifying viable cells and cell metabolic activities through flow cytometry and TTC assay, respectively, indicating that bacteriocin activities required to completely eradicate biofilms are at least 1600 AU mL−1, 3200 AU mL−1, and 6400 AU mL−1, respectively for each bacteriocin evaluated. Furthermore, bacteriocins ST651ea and ST7119ea require at least 6400 AU mL−1 to completely eradicate the viability of cells within the biofilms formed by E. faecium VRE19, while bacteriocin ST7319ea requires at least 12800 AU mL−1 to obtain the same observations. Assessment of synergistic activities between selected conventional antibiotics (ciprofloxacin and vancomycin) with these bacteriocins was carried out to evaluate their effects on biofilm formation and pre-formed biofilms of both test microorganisms. Results showed that higher concentrations are needed to completely eradicate metabolic activities of cells within pre-formed biofilms in contrast with the biofilm formation abilities of the strains. Furthermore, synergistic activities of bacteriocins with both ciprofloxacin and vancomycin are more evident against vancomycin-resistant E. faecium VRE19 rather than L. monocytogenes ATCC15313. These observations can be further explored for possible applications of these combinations of antibiotics as a possible treatment of clinically relevant pathogens.
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Macleod J, Beeton ML, Blaxland J. An Exploration of Listeria monocytogenes, Its Influence on the UK Food Industry and Future Public Health Strategies. Foods 2022; 11:1456. [PMID: 35627026 PMCID: PMC9141670 DOI: 10.3390/foods11101456] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/12/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023] Open
Abstract
Listeria monocytogenes is a Gram-positive intracellular pathogen that can cause listeriosis, an invasive disease affecting pregnant women, neonates, the elderly, and immunocompromised individuals. Principally foodborne, the pathogen is transmitted typically through contaminated foods. As a result, food manufacturers exert considerable efforts to eliminate L. monocytogenes from foodstuffs and the environment through food processing and disinfection. However, L. monocytogenes demonstrates a range of environmental stress tolerances, resulting in persistent colonies that act as reservoirs for the reintroduction of L. monocytogenes to food contact surfaces and food. Novel technologies for the rapid detection of L. monocytogenes and disinfection of food manufacturing industries have been developed to overcome these obstacles to minimise the risk of outbreaks and sporadic cases of listeriosis. This review is aimed at exploring L. monocytogenes in the UK, providing a summary of outbreaks, current routine microbiological testing and the increasing awareness of biocide tolerances. Recommendations for future research in the UK are made, pertaining to expanding the understanding of L. monocytogenes dissemination in the UK food industry and the continuation of novel technological developments for disinfection of food and the food manufacturing environment.
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Affiliation(s)
- Joshua Macleod
- Microbiology and Infection Research Group, School of Sport and Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK; (J.M.); (M.L.B.)
- ZERO2FIVE Food Industry Centre, Llandaff Campus, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
| | - Michael L. Beeton
- Microbiology and Infection Research Group, School of Sport and Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK; (J.M.); (M.L.B.)
| | - James Blaxland
- Microbiology and Infection Research Group, School of Sport and Health Sciences, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK; (J.M.); (M.L.B.)
- ZERO2FIVE Food Industry Centre, Llandaff Campus, Cardiff Metropolitan University, Western Avenue, Cardiff CF5 2YB, UK
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Zhang X, Feng P, Meng P, Li D, Gao H, Zhao Y, Yuan J, Wang Y, Xia H. Case Report: Severe Listeria Encephalitis With Complicated or Secondary Autoimmune Encephalitis and CNS Demyelinating Diseases. Front Public Health 2022; 10:848868. [PMID: 35646766 PMCID: PMC9133549 DOI: 10.3389/fpubh.2022.848868] [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: 01/05/2022] [Accepted: 03/24/2022] [Indexed: 12/02/2022] Open
Abstract
Background Listeria monocytogenes is an important food-borne bacterium. It rarely infects patients with complete immunity and causes meningocephalitis. Patients with severe Listeria encephalitis always experience a bad prognosis. Case Presentation A 39-year-old male patient was admitted to our hospital due to fever for more than 10 days and disturbance of consciousness accompanied by convulsions for 2 days. Metagenomic next-generation sequencing (mNGS) results showed L. monocytogenes in both cerebrospinal fluid (CSF) and blood, indicating L. monocytogenes encephalitis. Autoimmune encephalitis and central nervous system (CNS) demyelinating autoantibodies in the CSF also showed positive results. The case was finally diagnosed as severe Listeria encephalitis with complicated or secondary autoimmune encephalitis and CNS demyelinating diseases. Conclusions It is necessary to carry out infection and immunity screening in patients with severe encephalitis, especially for immunocompromised patients. mNGS plays a pivotal role in screening patients with severe and difficult neurological diseases.
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Affiliation(s)
- Xiaomin Zhang
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Peng Feng
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Pengfei Meng
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Dongfang Li
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Huizhong Gao
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yang Zhao
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jingjing Yuan
- Acupuncture Hospital of Shanxi Province, Taiyuan, China
| | - Yongqing Wang
- Department of Neurology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Han Xia
- Hugobiotech Co., Ltd., Department of Scientific Affairs, Beijing, China
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Antibiotic Resistance Patterns of Listeria Species Isolated from Broiler Abattoirs in Lusaka, Zambia. Antibiotics (Basel) 2022; 11:antibiotics11050591. [PMID: 35625235 PMCID: PMC9137566 DOI: 10.3390/antibiotics11050591] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 04/16/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023] Open
Abstract
L. monocytogenes is a public health threat linked to fast foods such as broiler chickens. This study aimed to verify the occurrence of Listeria species in chickens from abattoirs and evaluate their antimicrobial resistance. In total, 150 broiler carcass swabs distributed as cloacal (n = 60), exterior surface (n = 60), and environmental (n = 30) were collected. Listeria species were characterized using biochemical tests and PCR. We conducted antibiotic resistance tests using the disc diffusion and Etest (Biomerieux, Durham, NC, USA) methods. Overall isolation of Listeria species was 15% (23/150) 95% CI (10.16–22.33), 2% (3/150) 95% CI (0.52–6.19) and 13% (20/150) 95% CI (8.53–20.08) came from environmental swabs and carcass swabs, respectively. Proportions of positive Listeria isolates were L. monocytogenes 74% (17/23), L. welshimeri 22% (5/23), and L. innocua 4% (1/23). Listeria species from the exterior carcass swabs was 61% (14/23), cloacal swabs 26% (6/23), and environmental swabs 3% (3/23). L. monocytogenes had the greatest resistance percentage to the following antibiotics: clindamycin (61%, 10/23), tetracycline 30% (7/23), and erythromycin 13%, (3/23). Isolation of L. monocytogenes in relatively high numbers, including the antimicrobial profiles, suggests a potential risk of the pathogen remaining viable in the food continuum and a public health risk to would-be consumers.
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Park M, Horn L, Lappi V, Boxrud D, Hedberg C, Jeon B. Antimicrobial Synergy between Aminoglycosides and Licorice Extract in Listeria monocytogenes. Pathogens 2022; 11:pathogens11040440. [PMID: 35456115 PMCID: PMC9031314 DOI: 10.3390/pathogens11040440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 11/17/2022] Open
Abstract
Listeria monocytogenes is a foodborne pathogen that can develop serious invasive infections. Among foodborne pathogens, L. monocytogenes exhibits the highest case fatality despite antibiotic treatment, suggesting the current therapy should be improved. Although ampicillin and gentamicin are used as a combination therapy to treat listeriosis, our results showed there is no synergy between the two antibiotics. We discovered that aqueous extract of licorice generated significant antimicrobial synergy when combined with aminoglycosides, such as gentamicin, in L. monocytogenes. In the presence of 1 mg/mL licorice extract, for instance, the minimum inhibitory concentration (MIC) of gentamicin was reduced by 32-fold. Moreover, antimicrobial synergy with licorice extract made gentamicin-resistant clinical isolates of L. monocytogenes susceptible to gentamicin. Given the common use of licorice as a food sweetener in Western countries and a herb in Oriental medicine, our findings suggest that licorice extract can be potentially used as an antibiotic adjuvant to improve the efficacy of antimicrobial treatment of listeriosis.
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Affiliation(s)
- Myungseo Park
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA; (M.P.); (C.H.)
| | - Liz Horn
- Public Health Laboratory, Minnesota Department of Health, Saint Paul, MN 55164, USA; (L.H.); (V.L.); (D.B.)
| | - Victoria Lappi
- Public Health Laboratory, Minnesota Department of Health, Saint Paul, MN 55164, USA; (L.H.); (V.L.); (D.B.)
| | - Dave Boxrud
- Public Health Laboratory, Minnesota Department of Health, Saint Paul, MN 55164, USA; (L.H.); (V.L.); (D.B.)
| | - Craig Hedberg
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA; (M.P.); (C.H.)
| | - Byeonghwa Jeon
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA; (M.P.); (C.H.)
- Correspondence:
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Bland R, Brown SRB, Waite-Cusic J, Kovacevic J. Probing antimicrobial resistance and sanitizer tolerance themes and their implications for the food industry through the Listeria monocytogenes lens. Compr Rev Food Sci Food Saf 2022; 21:1777-1802. [PMID: 35212132 DOI: 10.1111/1541-4337.12910] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/18/2021] [Accepted: 12/23/2021] [Indexed: 12/12/2022]
Abstract
The development of antibiotic resistance is a serious public health crisis, reducing our ability to effectively combat infectious bacterial diseases. The parallel study of reduced susceptibility to sanitizers is growing, particularly for environmental foodborne pathogens, such as Listeria monocytogenes. As regulations demand a seek-and-destroy approach for L. monocytogenes, understanding sanitizer efficacy and its uses are critical for the food industry. Studies have reported the ability of L. monocytogenes to survive in sanitizer concentrations 10-1000 times lower than the manufacturer-recommended concentration (MRC). Notably, data show that at MRC and when applied according to the label instructions, sanitizers remain largely effective. Studies also report that variables such as the presence of organic material, application time/temperature, and bacterial attachment to surfaces can impact sanitizer effectiveness. Due to the lack of standardization in the methodology and definitions of sanitizer resistance, tolerance, and susceptibility, different messages are conveyed in different studies. In this review, we examine the diversity of definitions, terminology, and methodologies used in studies examining L. monocytogenes resistance and susceptibility to antimicrobials. Research available to date fails to demonstrate "resistance" of L. monocytogenes to recommended sanitizer treatments as prescribed by the label. As such, sanitizer tolerance would be a more accurate description of L. monocytogenes response to low sanitizer concentrations (i.e., sub-MRC). Conservative use of word "resistance" will reduce confusion and allow for concise messaging as sanitizer research findings are communicated to industry and regulators.
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Affiliation(s)
- Rebecca Bland
- Food Innovation Center, Oregon State University, Portland, Oregon, USA.,Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, USA
| | - Stephanie R B Brown
- Food Innovation Center, Oregon State University, Portland, Oregon, USA.,Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, USA
| | - Joy Waite-Cusic
- Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, USA
| | - Jovana Kovacevic
- Food Innovation Center, Oregon State University, Portland, Oregon, USA.,Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, USA
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Genetic diversity, virulence factors, and antimicrobial resistance of Listeria monocytogenes from food, livestock, and clinical samples between 2002 and 2019 in China. Int J Food Microbiol 2022; 366:109572. [DOI: 10.1016/j.ijfoodmicro.2022.109572] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 11/22/2022]
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Ermolaeva SA, Karpova T, Andriyanov P, Zhurilov P, Voronina OL, Ryzhova N, Aksenova E, Kunda M, Liskova E, Gruzdeva O, Klimova E, Posukhovsky E, Karetkina G, Melkumyan A, Orlova O, Burmistrova E, Pronina T, Tartakovsky I. Distribution of antimicrobial resistance among clinical and food Listeria monocytogenes isolated in Moscow in 2019–2021. CLINICAL MICROBIOLOGY AND ANTIMICROBIAL CHEMOTHERAPY 2022. [DOI: 10.36488/cmac.2022.2.156-164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Objective.
To determine the current state-of-art of acquired resistance to antimicrobial drugs among L. monocytogenes strains associated with listeriosis in humans and food contamination in Moscow.
Materials and Methods.
We used 39 L. monocytogenes strains isolated in Moscow in 2019–2021 from clinical material (n = 24) and food (n = 15). Resistance to 12 antibiotics of the first and second lines of defense was studied using disk-diffusion method. The parameters recommended for L. monocytogenes were used to interpret the results; in the absence of recommendations for L. monocytogenes, the criteria for Staphylococcus aureus and/or Enterococcus spp. were used.
Results.
All strains were susceptible to ampicillin, benzylpenicillin, erythromycin, vancomycin, imipenem, linezolid, and the amoxicillin/clavulanic acid. Resistance was observed to gentamicin (23%) as well as to meropenem, trimethoprim/sulfamethoxazole and ciprofloxacin (5%, 74% and 28% of strains, respectively). A total of 15 strains with multiple antibiotic resistance were identified (13 and 2 isolates were resistant to three and four antibiotics, respectively). Simultaneous resistance to trimethoprim/sulfamethoxazole, ciprofloxacin and levofloxacin was observed in 9 strains, 6 strains were resistant to gentamicin and trimethoprim/sulfamethoxazole, including 3 strains – to gentamicin, trimethoprim/sulfamethoxazole, levofloxacin, and 2 strains – to gentamicin, trimethoprim/sulfamethoxazole, ciprofloxacin. Comparison of the growth inhibition zones by ampicillin and benzylpenicillin in the studied strains with historical data on the strains isolated in Russia in 1950–1980 showed a significant downward shift in the size of growth inhibition zones. Comparison of the distribution of strains with different diameters of growth inhibition zones depending on the source of isolation did not show significant differences between clinical strains and strains of food origin isolated in 2019–2021.
Conclusions.
A wide spread of acquired resistance was shown among L. monocytogenes strains of clinical and food origin isolated in Moscow in 2019–2021. Despite the fact that all strains were susceptible to penicillins, the distribution of growth inhibition zone diameters showed a significant shift towards decreasing sensitivity to ampicillin and benzylpenicillin in strains isolated in 2019–2021 compared with L. monocytogenes strains isolated in Russia before 1980.
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Affiliation(s)
- Svetlana A. Ermolaeva
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology (Moscow, Russia)
| | - T.I. Karpova
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology (Moscow, Russia)
| | - P.A. Andriyanov
- Nizhny Novgorod Research Veterinary Institute – Branch of Federal Research Center for Virology and Microbiology (Nizhny Novgorod, Russia)
| | - P.A. Zhurilov
- Nizhny Novgorod Research Veterinary Institute – Branch of Federal Research Center for Virology and Microbiology (Nizhny Novgorod, Russia)
| | - Olga L. Voronina
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology (Moscow, Russia)
| | - N.N. Ryzhova
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology (Moscow, Russia)
| | - E.I. Aksenova
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology (Moscow, Russia)
| | - M.S. Kunda
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology (Moscow, Russia)
| | - E.A. Liskova
- Nizhny Novgorod Research Veterinary Institute – Branch of Federal Research Center for Virology and Microbiology (Nizhny Novgorod, Russia)
| | - O.A. Gruzdeva
- Russian Medical Academy of Continuous Professional Education (Moscow, Russia)
| | - E.A. Klimova
- A.I. Yevdokimov Moscow State University of Medicine and Dentistry (Moscow, Russia)
| | - E.A. Posukhovsky
- A.I. Yevdokimov Moscow State University of Medicine and Dentistry (Moscow, Russia)
| | - G.N. Karetkina
- A.I. Yevdokimov Moscow State University of Medicine and Dentistry (Moscow, Russia)
| | - A.R. Melkumyan
- City Clinical Hospital named after F.I. Inozemtsev (Moscow, Russia)
| | - O.E. Orlova
- City Clinical Hospital No. 67 named after L.A. Vorokhobov (Moscow, Russia)
| | | | - T.V. Pronina
- City Infectious Clinical Hospital No. 1 (Moscow, Russia)
| | - I.S. Tartakovsky
- N.F. Gamaleya National Research Center of Epidemiology and Microbiology (Moscow, Russia)
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A systematic review and meta-analysis of Listeria monocytogenes isolated from human and non-human sources: The antibiotic susceptibility aspect. Diagn Microbiol Infect Dis 2022; 102:115634. [DOI: 10.1016/j.diagmicrobio.2022.115634] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/05/2021] [Accepted: 01/04/2022] [Indexed: 01/09/2023]
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Wu L, Bao H, Yang Z, He T, Tian Y, Zhou Y, Pang M, Wang R, Zhang H. Antimicrobial susceptibility, multilocus sequence typing, and virulence of listeria isolated from a slaughterhouse in Jiangsu, China. BMC Microbiol 2021; 21:327. [PMID: 34823476 PMCID: PMC8613961 DOI: 10.1186/s12866-021-02335-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 09/30/2021] [Indexed: 11/19/2022] Open
Abstract
Background Listeria monocytogenes is one of the deadliest foodborne pathogens. The bacterium can tolerate severe environments through biofilm formation and antimicrobial resistance. This study aimed to investigate the antimicrobial susceptibility, resistance genes, virulence, and molecular epidemiology about Listeria from meat processing environments. Methods This study evaluated the antibiotic resistance and virulence of Listeria isolates from slaughtering and processing plants. All isolates were subjected to antimicrobial susceptibility testing using a standard microbroth dilution method. The harboring of resistant genes was identified by polymerase chain reaction. The multilocus sequence typing was used to determine the subtyping of the isolates and characterize possible routes of contamination from meat processing environments. The virulence of different STs of L. monocytogenes isolates was evaluated using a Caco-2 cell invasion assay. Results A total of 59 Listeria isolates were identified from 320 samples, including 37 L. monocytogenes isolates (62.71%). This study evaluated the virulence of L. monocytogenes and the antibiotic resistance of Listeria isolates from slaughtering and processing plants. The susceptibility of these 59 isolates against 8 antibiotics was analyzed, and the resistance levels to ceftazidime, ciprofloxacin, and lincomycin were as high as 98.31% (L. m 37; L. innocua 7; L. welshimeri 14), 96.61% (L. m 36; L. innocua 7; L. welshimeri 14), and 93.22% (L. m 35; L. innocua 7; L. welshimeri 13), respectively. More than 90% of the isolates were resistant to three to six antibiotics, indicating that Listeria isolated from meat processing environments had high antimicrobial resistance. Up to 60% of the isolates harbored the tetracycline-resistance genes tetA and tetM. The frequency of ermA, ermB, ermC, and aac(6′)-Ib was 16.95, 13.56, 15.25, and 6.78%, respectively. Notably, the resistant phenotype and genotype did not match exactly, suggesting that the mechanisms of antibiotic resistance of these isolates were likely related to the processing environment. Multilocus sequence typing (MLST) revealed that 59 Listeria isolates were grouped into 10 sequence types (STs). The dominant L. monocytogenes STs were ST5, ST9, and ST121 in the slaughtering and processing plant of Jiangsu province. Moreover, ST5 subtypes exhibited high invasion in Caco-2 cells compared with ST9 and ST121 cells. Conclusion The dominant L. monocytogenes ST5 persisted in the slaughtering and processing plant and had high antimicrobial resistance and invasion characteristics, illustrating a potential risk in food safety and human health.
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Affiliation(s)
- Liting Wu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Hongduo Bao
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Zhengquan Yang
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225009, China
| | - Tao He
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Yuan Tian
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China.,Jiangsu University - School of Food and Biological Engineering, Zhenjiang, 212013, China
| | - Yan Zhou
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Maoda Pang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Ran Wang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China
| | - Hui Zhang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of MOST, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, No 50 Zhongling Street, Nanjing, 210014, Jiangsu, China.
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Maćkiw E, Korsak D, Kowalska J, Felix B, Stasiak M, Kucharek K, Antoszewska A, Postupolski J. Genetic diversity of Listeria monocytogenes isolated from ready-to-eat food products in retail in Poland. Int J Food Microbiol 2021; 358:109397. [PMID: 34536853 DOI: 10.1016/j.ijfoodmicro.2021.109397] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/01/2021] [Accepted: 09/04/2021] [Indexed: 12/22/2022]
Abstract
The study describes the characterization of Listeria monocytogenes isolated from the general 2017-2019 national official control and monitoring sampling program. A total of 60,928 of ready-to-eat (RTE) food products were collected in retail in Poland, while the number of L. monocytogenes contaminated samples was 67 (0.1%). The majority of the strains belonged to molecular serotype IVb followed by IIa, frequently associated with human listeriosis. Furthermore, 61.2% of the isolates were resistant at least to one of the tested antimicrobials: penicillin, ampicillin, meropenem, erythromycin, sulfamethoxazole-trimethoprim, amoxicillin-clavulanic acid, ciprofloxacin, chloramphenicol, gentamicin, vancomycin, tetracycline and rifampicin. Virulence genes inlA, inlC, inlJ and lmo2672 were detected in all of the isolates. In our study the llsX gene (encoding LLS) exhibited 11.6% positivity. The 32 strains were grouped into 12 clonal complexes (CCs) which belong to the major clones that are in circulation in Europe. Among them, seven strains with the cgMLST close relatedness (CC2) were isolated from diverse food sectors, underlining a large circulation of this clone in Poland, most likely from multiple introduction sources. Additionally, two RTE strains CC6 and one CC37 were identified as closely related by cgMLST to two publicly available genomes of clinical strains isolated in Poland in 2012-2013. These results indicate the large strain circulation and point to RTE food products as a potential source of human listeriosis. The present study provided data to capture the contamination status of L. monocytogenes in foods at the retail level in Poland and assess the potential risk of this pathogen for human safety.
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Affiliation(s)
- Elżbieta Maćkiw
- Department of Food Safety, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland.
| | - Dorota Korsak
- Department of Food Safety, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
| | - Joanna Kowalska
- Department of Food Safety, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
| | - Benjamin Felix
- European Union Reference Laboratory for L. monocytogenes, ANSES, Laboratory for Food Safety, University of Paris-Est, 94700 Maisons-Alfort, France
| | - Monika Stasiak
- Department of Food Safety, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
| | - Katarzyna Kucharek
- Department of Food Safety, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
| | - Aleksandra Antoszewska
- Department of Food Safety, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
| | - Jacek Postupolski
- Department of Food Safety, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
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40
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Andriyanov PA, Zhurilov PA, Liskova EA, Karpova TI, Sokolova EV, Yushina YK, Zaiko EV, Bataeva DS, Voronina OL, Psareva EK, Tartakovsky IS, Kolbasov DV, Ermolaeva SA. Antimicrobial Resistance of Listeria monocytogenes Strains Isolated from Humans, Animals, and Food Products in Russia in 1950-1980, 2000-2005, and 2018-2021. Antibiotics (Basel) 2021; 10:antibiotics10101206. [PMID: 34680788 PMCID: PMC8532776 DOI: 10.3390/antibiotics10101206] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/04/2022] Open
Abstract
Susceptibility of 117 L. monocytogenes strains isolated during three time periods (1950–1980; 2000–2005, and 2018–2021) to 23 antibiotics was tested by the disk diffusion method. All strains were sensitive to aminoglycosides (gentamicin, kanamycin, neomycin, streptomycin), glycopeptides (vancomycin and teicoplanin), clarithromycin, levofloxacin, amoxicillin/clavulanic acid, and trimethoprim/sulfamethoxazole. Resistance to clindamycin was observed in 35.5% of strains. Resistance to carbapenems, imipenem and meropenem was found in 4% and 5% of strains, respectively. Resistance to erythromycin, penicillin G, trimethoprim, and ciprofloxacin was found in 4%, 3%, 3%, and 2.5% of strains, respectively. Resistance to tylosin, ampicillin, enrofloxacin, linezolid, chloramphenicol, and tetracycline was found in less than 2%. Three strains with multiple antibiotic resistance and 12 strains with resistance to two antibiotics were revealed. Comparison of strains isolated in different time periods showed that the percentage of resistant strains was the lowest among strains isolated before 1980, and no strains with multiple antibiotic resistance were found among them. Statistical analysis demonstrated that the temporal evolution of resistance in L. monocytogenes has an antibiotic-specific character. While resistance to some antibiotics such as ampicillin and penicillin G has gradually decreased in the population, resistance to other antibiotics acquired by particular strains in recent years has not been accompanied by changes in resistance of other strains.
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Affiliation(s)
- Pavel A. Andriyanov
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950 Nizhny Novgorod, Russia; (P.A.A.); (P.A.Z.); (E.A.L.); (E.V.S.); (E.K.P.)
| | - Pavel A. Zhurilov
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950 Nizhny Novgorod, Russia; (P.A.A.); (P.A.Z.); (E.A.L.); (E.V.S.); (E.K.P.)
| | - Elena A. Liskova
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950 Nizhny Novgorod, Russia; (P.A.A.); (P.A.Z.); (E.A.L.); (E.V.S.); (E.K.P.)
| | - Tatyana I. Karpova
- Gamaleya National Research Centre for Epidemiology and Microbiology, 123098 Moscow, Russia; (T.I.K.); (O.L.V.); (I.S.T.)
| | - Elena V. Sokolova
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950 Nizhny Novgorod, Russia; (P.A.A.); (P.A.Z.); (E.A.L.); (E.V.S.); (E.K.P.)
| | - Yulia K. Yushina
- Federal Scientific Centre for Food Systems n.a. V.M. Gorbatov, 109316 Moscow, Russia; (Y.K.Y.); (E.V.Z.); (D.S.B.)
| | - Elena V. Zaiko
- Federal Scientific Centre for Food Systems n.a. V.M. Gorbatov, 109316 Moscow, Russia; (Y.K.Y.); (E.V.Z.); (D.S.B.)
| | - Dagmara S. Bataeva
- Federal Scientific Centre for Food Systems n.a. V.M. Gorbatov, 109316 Moscow, Russia; (Y.K.Y.); (E.V.Z.); (D.S.B.)
| | - Olga L. Voronina
- Gamaleya National Research Centre for Epidemiology and Microbiology, 123098 Moscow, Russia; (T.I.K.); (O.L.V.); (I.S.T.)
| | - Ekaterina K. Psareva
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950 Nizhny Novgorod, Russia; (P.A.A.); (P.A.Z.); (E.A.L.); (E.V.S.); (E.K.P.)
| | - Igor S. Tartakovsky
- Gamaleya National Research Centre for Epidemiology and Microbiology, 123098 Moscow, Russia; (T.I.K.); (O.L.V.); (I.S.T.)
| | - Denis V. Kolbasov
- Federal Research Center for Virology and Microbiology, 601125 Volginsky, Russia;
| | - Svetlana A. Ermolaeva
- Federal Research Center for Virology and Microbiology, Branch in Nizhny Novgorod, 603950 Nizhny Novgorod, Russia; (P.A.A.); (P.A.Z.); (E.A.L.); (E.V.S.); (E.K.P.)
- Gamaleya National Research Centre for Epidemiology and Microbiology, 123098 Moscow, Russia; (T.I.K.); (O.L.V.); (I.S.T.)
- Correspondence: ; Tel.: +7-909-939-9612
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Halbedel S, Wilking H, Holzer A, Kleta S, Fischer MA, Lüth S, Pietzka A, Huhulescu S, Lachmann R, Krings A, Ruppitsch W, Leclercq A, Kamphausen R, Meincke M, Wagner-Wiening C, Contzen M, Kraemer IB, Al Dahouk S, Allerberger F, Stark K, Flieger A. Large Nationwide Outbreak of Invasive Listeriosis Associated with Blood Sausage, Germany, 2018-2019. Emerg Infect Dis 2021; 26:1456-1464. [PMID: 32568037 PMCID: PMC7323541 DOI: 10.3201/eid2607.200225] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Invasive listeriosis is a severe foodborne infection in humans and is difficult to control. Listeriosis incidence is increasing worldwide, but some countries have implemented molecular surveillance programs to improve recognition and management of listeriosis outbreaks. In Germany, routine whole-genome sequencing, core genome multilocus sequence typing, and single nucleotide polymorphism calling are used for subtyping of Listeria monocytogenes isolates from listeriosis cases and suspected foods. During 2018–2019, an unusually large cluster of L. monocytogenes isolates was identified, including 134 highly clonal, benzalkonium-resistant sequence type 6 isolates collected from 112 notified listeriosis cases. The outbreak was one of the largest reported in Europe during the past 25 years. Epidemiologic investigations identified blood sausage contaminated with L. monocytogenes highly related to clinical isolates; withdrawal of the product from the market ended the outbreak. We describe how epidemiologic investigations and complementary molecular typing of food isolates helped identify the outbreak vehicle.
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Koutsoumanis K, Allende A, Álvarez‐Ordóñez A, Bolton D, Bover‐Cid S, Chemaly M, Davies R, De Cesare A, Herman L, Hilbert F, Lindqvist R, Nauta M, Ru G, Simmons M, Skandamis P, Suffredini E, Argüello H, Berendonk T, Cavaco LM, Gaze W, Schmitt H, Topp E, Guerra B, Liébana E, Stella P, Peixe L. Role played by the environment in the emergence and spread of antimicrobial resistance (AMR) through the food chain. EFSA J 2021; 19:e06651. [PMID: 34178158 PMCID: PMC8210462 DOI: 10.2903/j.efsa.2021.6651] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The role of food-producing environments in the emergence and spread of antimicrobial resistance (AMR) in EU plant-based food production, terrestrial animals (poultry, cattle and pigs) and aquaculture was assessed. Among the various sources and transmission routes identified, fertilisers of faecal origin, irrigation and surface water for plant-based food and water for aquaculture were considered of major importance. For terrestrial animal production, potential sources consist of feed, humans, water, air/dust, soil, wildlife, rodents, arthropods and equipment. Among those, evidence was found for introduction with feed and humans, for the other sources, the importance could not be assessed. Several ARB of highest priority for public health, such as carbapenem or extended-spectrum cephalosporin and/or fluoroquinolone-resistant Enterobacterales (including Salmonella enterica), fluoroquinolone-resistant Campylobacter spp., methicillin-resistant Staphylococcus aureus and glycopeptide-resistant Enterococcus faecium and E. faecalis were identified. Among highest priority ARGs bla CTX -M, bla VIM, bla NDM, bla OXA -48-like, bla OXA -23, mcr, armA, vanA, cfr and optrA were reported. These highest priority bacteria and genes were identified in different sources, at primary and post-harvest level, particularly faeces/manure, soil and water. For all sectors, reducing the occurrence of faecal microbial contamination of fertilisers, water, feed and the production environment and minimising persistence/recycling of ARB within animal production facilities is a priority. Proper implementation of good hygiene practices, biosecurity and food safety management systems is very important. Potential AMR-specific interventions are in the early stages of development. Many data gaps relating to sources and relevance of transmission routes, diversity of ARB and ARGs, effectiveness of mitigation measures were identified. Representative epidemiological and attribution studies on AMR and its effective control in food production environments at EU level, linked to One Health and environmental initiatives, are urgently required.
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Characterisation of Listeria monocytogenes food-associated isolates to assess environmental fitness and virulence potential. Int J Food Microbiol 2021; 350:109247. [PMID: 34023680 DOI: 10.1016/j.ijfoodmicro.2021.109247] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/03/2021] [Accepted: 05/13/2021] [Indexed: 11/22/2022]
Abstract
The ability of Listeria monocytogenes isolates to survive within the food production environment (FPE), as well as virulence, varies greatly between strains. There are specific genetic determinants that have been identified which can strongly influence a strains ability to survive in the FPE and/or within human hosts. In this study, we assessed the FPE fitness and virulence potential, including efficacy of selected hygiene or treatment intervention, against 52 L. monocytogenes strains isolated from various food and food environment sources. Phenotypic tests were performed to determine the minimum inhibitory concentration of cadmium chloride and benzalkonium chloride and the sensitivities to five clinically relevant antibiotics. A genomic analysis was also performed to identify resistance genes correlating to the observed phenotypic resistance profiles, along with genetic determinants of interest which may elude to the FPE fitness and virulence potential. A transposon element containing a novel cadmium resistance gene, cadA7, a Tn916 variant insert in the hypervariable Listeria genomic island 1 region and an LGI2 variant were identified. Resistance to cadmium and disinfectants was prevalent among isolates in this study, although no resistance to clinically important antimicrobials was observed. Potential hypervirulent strains containing full length inlA, LIPI-1 and LIPI-3 were also identified in this study. Cumulatively, the results of this study show a vast array of FPE survival and pathogenicity potential among food production-associated isolates, which may be of concern for food processing operators and clinicians regarding L. monocytogenes strains colonising and persisting within the FPE, and subsequently contaminating food products then causing disease in at risk population groups.
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Parussolo L, Sfaciotte RAP, Dalmina KA, Melo FD, Costa UMDA, Ferraz SM. Detection of virulence genes and antimicrobial susceptibility profile of Listeria monocytogenes isolates recovered from artisanal cheese produced in the Southern region of Brazil. AN ACAD BRAS CIENC 2021; 93:e20190200. [PMID: 33950134 DOI: 10.1590/0001-3765202120190200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 05/13/2019] [Indexed: 11/22/2022] Open
Abstract
Listeria monocytogenes is an opportunistic pathogen that causes listeriosis, a foodborne disease with low incidence but with high mortality rate in humans. This microorganism has been recovered from several dairy products, especially those produced with raw milk. The objective of this work was to investigate the presence of virulence genes, and also to define the antimicrobial susceptibility profile of L. monocytogenes isolates recovered from serrano artisanal cheese produced in Southern region of Brazil. Nine strains of L. monocytogenes (serotypes 1/2b and 4b) were evaluated through PCR to detect the presence of the virulence genes hly, inlA, inlC, inlJ, actA, plcB and iap, while antimicrobial susceptibility profile was determined via disk diffusion method. All strains exhibited the presence of the genes hly and plcB, whereas the other genes (iap, actA, inlA, inlC and inlJ) were only detected in eight strains. We verified that all strains were resistant to at least one antimicrobial agent and three of them showed multidrug resistance. These findings demonstrated the serrano artisanal cheese offers risks to consumers' health and point to a need of adaptations and monitoring of manufacturing process of this food, in order to prevent the dissemination of L. monocytogenes.
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Affiliation(s)
- Leandro Parussolo
- Universidade do Estado de Santa Catarina, Centro de Diagnóstico Microbiológico Animal, Centro de Ciências Agroveterinárias, Av. Luiz de Camões, 2090, Bairro Conta Dinheiro, 88520-000 Lages, SC, Brazil.,Instituto Federal de Santa Catarina, Av. Mauro Ramos, 950, Centro, 88020-300 Florianópolis, SC, Brazil
| | - Ricardo Antônio P Sfaciotte
- Universidade do Estado de Santa Catarina, Centro de Diagnóstico Microbiológico Animal, Centro de Ciências Agroveterinárias, Av. Luiz de Camões, 2090, Bairro Conta Dinheiro, 88520-000 Lages, SC, Brazil
| | - Karine Andrezza Dalmina
- Universidade do Estado de Santa Catarina, Centro de Diagnóstico Microbiológico Animal, Centro de Ciências Agroveterinárias, Av. Luiz de Camões, 2090, Bairro Conta Dinheiro, 88520-000 Lages, SC, Brazil
| | - Fernanda Danielle Melo
- Universidade do Estado de Santa Catarina, Centro de Diagnóstico Microbiológico Animal, Centro de Ciências Agroveterinárias, Av. Luiz de Camões, 2090, Bairro Conta Dinheiro, 88520-000 Lages, SC, Brazil
| | - Ubirajara M DA Costa
- Universidade do Estado de Santa Catarina, Centro de Diagnóstico Microbiológico Animal, Centro de Ciências Agroveterinárias, Av. Luiz de Camões, 2090, Bairro Conta Dinheiro, 88520-000 Lages, SC, Brazil
| | - Sandra Maria Ferraz
- Universidade do Estado de Santa Catarina, Centro de Diagnóstico Microbiológico Animal, Centro de Ciências Agroveterinárias, Av. Luiz de Camões, 2090, Bairro Conta Dinheiro, 88520-000 Lages, SC, Brazil
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Zhao Y, Xu C, Tuo H, Liu Y, Wang J. Rhombencephalitis due to Listeria monocytogenes infection with GQ1b antibody positivity and multiple intracranial hemorrhage: a case report and literature review. J Int Med Res 2021; 49:300060521998568. [PMID: 33866842 PMCID: PMC8755651 DOI: 10.1177/0300060521998568] [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] [Indexed: 12/18/2022] Open
Abstract
Listeria monocytogenes is a Gram-positive facultative intracellular bacterium that causes central nervous system infection. We report a case of rhombencephalitis caused by L. monocytogenes infection, which mimicked Bickerstaff’s brainstem encephalitis, and GQ1b antibody positivity and multiple intracranial foci were observed. A 68-year-old male patient presented with a nonspecific prodrome of faintness, forehead tightness, and walking instability. This was followed by progressive cranial nerve palsies, limb weakness, cerebellar signs, hyperpyrexia, and impaired consciousness. Brain imaging showed multiple abnormal brainstem and cerebellar signals that were accompanied by blood infiltration without any lesion enhancement. Serum GQ1b antibody positivity led to an initial diagnosis of Bickerstaff’s brainstem encephalitis, which was treated with immunosuppressive therapy with limited efficacy. A pathogen examination helped confirm L. monocytogenes infection. A combination of meropenem and trimethoprim-sulfamethoxazole therapy was applied and the patient recovered without sequelae. The symptoms and imaging of Listeria rhombencephalitis are nonspecific. Accurate diagnosis and prompt treatment of this condition are essential. Whether Listeria infection triggers an autoimmune response remains unclear.
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Affiliation(s)
- Yingying Zhao
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Chunling Xu
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Houzhen Tuo
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ye Liu
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jiali Wang
- Department of Cardiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Fischer MA, Wamp S, Fruth A, Allerberger F, Flieger A, Halbedel S. Population structure-guided profiling of antibiotic resistance patterns in clinical Listeria monocytogenes isolates from Germany identifies pbpB3 alleles associated with low levels of cephalosporin resistance. Emerg Microbes Infect 2021; 9:1804-1813. [PMID: 32691687 PMCID: PMC7473133 DOI: 10.1080/22221751.2020.1799722] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Numbers of listeriosis illnesses have been increasing in Germany and the European Union during the last decade. In addition, reports on the occurrence of antibiotic resistance in Listeria monocytogenes in clinical and environmental isolates are accumulating. The susceptibility towards 14 antibiotics was tested in a selection of clinical L. monocytogenes isolates to get a more precise picture of the development and manifestation of antibiotic resistance in the L. monocytogenes population. Based on the population structure determined by core genome multi locus sequence typing (cgMLST) 544 out of 1220 sequenced strains collected in Germany between 2009 and 2019 were selected to cover the phylogenetic diversity observed in the clinical L. monocytogenes population. All isolates tested were susceptible towards ampicillin, penicillin and co-trimoxazole – the most relevant antibiotics in the treatment of listeriosis. Resistance to daptomycin and ciprofloxacin was observed in 493 (91%) and in 71 (13%) of 544 isolates, respectively. While all tested strains showed resistance towards ceftriaxone, their resistance levels varied widely between 4 mg/L and >128 mg/L. An allelic variation of the penicillin binding protein gene pbpB3 was identified as the cause of this difference in ceftriaxone resistance levels. This study is the first population structure-guided analysis of antimicrobial resistance in recent clinical isolates and confirms the importance of penicillin binding protein B3 (PBP B3) for the high level of intrinsic cephalosporin resistance of L. monocytogenes on a population-wide scale.
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Affiliation(s)
- Martin A Fischer
- FG11 Division of Enteropathogenic bacteria and Legionella, Robert Koch Institute, Wernigerode, Germany
| | - Sabrina Wamp
- FG11 Division of Enteropathogenic bacteria and Legionella, Robert Koch Institute, Wernigerode, Germany
| | - Angelika Fruth
- FG11 Division of Enteropathogenic bacteria and Legionella, Robert Koch Institute, Wernigerode, Germany
| | | | - Antje Flieger
- FG11 Division of Enteropathogenic bacteria and Legionella, Robert Koch Institute, Wernigerode, Germany.,German Consultant Laboratory for Listeria, Robert Koch Institute, Wernigerode, Germany
| | - Sven Halbedel
- FG11 Division of Enteropathogenic bacteria and Legionella, Robert Koch Institute, Wernigerode, Germany.,German Consultant Laboratory for Listeria, Robert Koch Institute, Wernigerode, Germany
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Development of a fluorescence aptasensor for rapid and sensitive detection of Listeria monocytogenes in food. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107808] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Menon KV, Sunil B, Latha C. Prevalence and antibiotic resistance profile of Listeria spp. associated with seafoods from fish catchment areas in Kerala, India. Vet World 2021; 14:777-783. [PMID: 33935427 PMCID: PMC8076452 DOI: 10.14202/vetworld.2021.777-783] [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: 07/09/2020] [Accepted: 02/03/2021] [Indexed: 11/16/2022] Open
Abstract
Background and Aim: Listeria monocytogenes is a ubiquitous, intracellular pathogen which has been implicated as a cause of several foodborne outbreaks. This study aimed to generate information on the prevalence and antibiotic resistance profile of Listeria species isolated from seafood. Materials and Methods: A total of 400 samples of fresh fish, 100 samples of dry fish and 200 samples each of crustaceans and mollusks were collected from the fish catchment areas. All the samples were subjected to isolation and identification of Listeria spp. by two-step enrichment in UVM broth and plating on selective agar media (PALCAM) and then subjected to molecular characterization. L. monocytogenes isolates obtained during the study were subjected to serotyping by multiplex polymerase chain reaction. The isolates were also subjected to antibiotic sensitivity test. Results: The prevalence of L. monocytogenes in seafoods in the present study was 0.55%. The isolates of L. monocytogenes were found to possess all virulence genes, namely, iap, hlyA, actA, prfA, plcA, and inlA. All the isolates belonged to serotype 4b. The occurrence of Listeria innocua was found to be more and was detected in 16.77% of seafood samples. Antibiotic sensitivity test revealed that all isolates were resistant to cefixime but were sensitive to almost all other commonly used antibiotics. Conclusion: The presence of Listeria spp. in raw seafood samples augments the need for implementation of good hygienic practices during the handling and processing of seafoods to safeguard the health of the consumers.
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Affiliation(s)
- K Vrinda Menon
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Kerala Veterinary and Animal Sciences University, Thrissur, Kerala, India
| | - B Sunil
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Veterinary and Animal Sciences University, Thrissur, Kerala, India
| | - C Latha
- Department of Veterinary Public Health, College of Veterinary and Animal Sciences, Veterinary and Animal Sciences University, Mannuthy, Thrissur, Kerala, India
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Properties of the Extracellular Polymeric Substance Layer from Minimally Grown Planktonic Cells of Listeria monocytogenes. Biomolecules 2021; 11:biom11020331. [PMID: 33671666 PMCID: PMC7926710 DOI: 10.3390/biom11020331] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/13/2021] [Accepted: 02/19/2021] [Indexed: 12/14/2022] Open
Abstract
The bacterium Listeria monocytogenes is a serious concern to food processing facilities because of its persistence. When liquid cultures of L. monocytogenes were prepared in defined media, it was noted that planktonic cells rapidly dropped out of suspension. Zeta potential and hydrophobicity assays found that the cells were more negatively charged (−22, −18, −10 mV in defined media D10, MCDB 202 and brain heart infusion [BHI] media, respectively) and were also more hydrophobic. A SEM analysis detected a capsular-like structure on the surface of cells grown in D10 media. A crude extract of the extracellular polymeric substance (EPS) was found to contain cell-associated proteins. The proteins were removed with pronase treatment. The remaining non-proteinaceous component was not stained by Coomassie blue dye and a further chemical analysis of the EPS did not detect significant amounts of sugars, DNA, polyglutamic acid or any other specific amino acid. When the purified EPS was subjected to attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, the spectra obtained did not match the profile of any of the 12 reference compounds used. An x-ray diffraction (XRD) analysis showed that the EPS was amorphous and a nuclear magnetic resonance (NMR) analysis detected the presence of glycerol. An elemental energy dispersive x-ray (EDX) analysis showed traces of phosphorous as a major component. In conclusion, it is proposed that the non-proteinaceous component may be phospholipid in nature, possibly derived from the cell wall lipoteichoic acid.
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Evangelista AG, Corrêa JAF, Pinto ACSM, Luciano FB. The impact of essential oils on antibiotic use in animal production regarding antimicrobial resistance - a review. Crit Rev Food Sci Nutr 2021; 62:5267-5283. [PMID: 33554635 DOI: 10.1080/10408398.2021.1883548] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Population growth directly affects the global food supply, demanding a higher production efficiency without farmland expansion - in view of limited land resources and biodiversity loss worldwide. In such scenario, intensive agriculture practices have been widely used. A commonly applied method to maximize yield in animal production is the use of subtherapeutic doses of antibiotics as growth promoters. Because of the strong antibiotic selection pressure generated, the intense use of antibiotic growth promoters (AGP) has been associated to the rise of antimicrobial resistance (AMR). Also, cross-resistance can occur, leading to the emergence of multidrug-resistant pathogens and limiting treatment options in both human and animal health. Thereon, alternatives have been studied to replace AGP in animal production. Among such alternatives, essential oils and essential oil components (EOC) stand out positively from others due to, besides antimicrobial effectiveness, improving zootechnical indexes and modulating genes involved in resistance mechanisms. This review summarizes recent studies in essential oils and EOC for zoonotic bacteria control, providing detailed information about the molecular-level effects of their use in regard to AMR, and identifying important gaps to be filled within the animal production area.
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Affiliation(s)
- Alberto Gonçalves Evangelista
- Graduate Program in Animal Science, Pontifical Catholic University of Paraná, Prado Velho - Curitiba, Paraná, Brazil
| | - Jessica Audrey Feijó Corrêa
- Graduate Program in Animal Science, Pontifical Catholic University of Paraná, Prado Velho - Curitiba, Paraná, Brazil
| | | | - Fernando Bittencourt Luciano
- Graduate Program in Animal Science, Pontifical Catholic University of Paraná, Prado Velho - Curitiba, Paraná, Brazil
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