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Gundog DA, Ozkaya Y, Gungor C, Ertas Onmaz N, Gonulalan Z. Pathogenic potential of meat-borne coagulase negative staphylococci strains from slaughterhouse to fork. Int Microbiol 2024:10.1007/s10123-024-00500-2. [PMID: 38521888 DOI: 10.1007/s10123-024-00500-2] [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: 02/23/2024] [Revised: 02/23/2024] [Accepted: 03/07/2024] [Indexed: 03/25/2024]
Abstract
This study aimed to determine the prevalence of coagulase-negative staphylococci (CoNS) in meat processing lines for their pathogenic potential associated with biofilm formation, staphylococcal toxin genes, and antibiotic resistance in obtained isolates. Out of 270 samples, 56 isolates were identified as staphylococcal with their species level, and their antimicrobial resistance profiles were also determined with the BD Phoenix™ system. Among these, CoNS were found in 32 isolates, including S. epidermidis (22%), S. warneri (22%), S. cohnii (9%), S. schleiferi (9%), S. capitis (6%), S. haemolyticus (6%), S. lugdunensis (6%), S. chromogenes (6%), S. kloosii (3%), S. sciuri (3%), S. lentus (3%), and S. caprae (3%). Biofilm formation was observed in 78.1% of CoNS isolates, with 56% being strong biofilm producers; and the frequency of the icaA, fnbA, and fnbB genes were 43.7% and 34.3%, and 9.3% in isolates, respectively. Twenty-five (78.1%) of these strains were resistant to at least one antimicrobial agent, 20 (80%) of which exhibited multidrug resistance (MDR). Regarding genotypic analyses, 15.6%, 22.2%, 87.5%, and 9% of isolates, were positive for blaZ, ermC, tetK, and aacA-aphD, respectively. In 8 (25%) of all isolates had one or more staphylococcal toxin genes: the sed gene was the most frequent (12.5%), followed by eta (9.3%), tst-1 (6.25%), and sea (3.1%). In conclusion, this study highlights meat; and meat products might be reservoirs for the biofilm-producing MDR-CoNS, which harbored several toxin genes. Hence, it should not be ignored that CoNS may be related to foodborne outbreaks.
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Affiliation(s)
- Dursun Alp Gundog
- Department of Veterinary Food Hygiene and Technology, Institute of Health Science, Erciyes University, Kayseri, 38280, Turkey.
| | - Yasin Ozkaya
- Department of Veterinary Food Hygiene and Technology, Institute of Health Science, Erciyes University, Kayseri, 38280, Turkey
| | - Candan Gungor
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, 38280, Turkey
| | - Nurhan Ertas Onmaz
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, 38280, Turkey
| | - Zafer Gonulalan
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Erciyes University, Kayseri, 38280, Turkey
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Yehuala GA, Shibeshi NT, Kim SH, Park MK. Characterization of Autochthonous Lactic Acid Bacteria Isolated from a Traditional Ethiopian Beverage, Tella. Foods 2024; 13:575. [PMID: 38397552 PMCID: PMC10888401 DOI: 10.3390/foods13040575] [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: 01/11/2024] [Revised: 01/29/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
This study aimed to isolate lactic acid bacteria (LAB) from a traditional Ethiopian fermented product, Tella, and evaluate their functional properties. Of forty-three isolates, seven LAB were screened and identified as Pediococcus pentosaceus, Latilactobacillus curvatus, Leuconostoc mesenteroides, and Lactiplantibacillus plantarum species. The isolates were tested for their alcohol tolerance, acid and bile resistance, auto-aggregation, co-aggregation, hydrophobicity, antibacterial activity, and antibiotic susceptibility. LAB isolates, specifically P. pentosaceus TAA01, L. mesenteroides TDB22, and L. plantarum TDM41, showed a higher degree of alcohol tolerance in 8% and 10% (w/v) ethanol concentrations. Additionally, these three isolates displayed survival rates >85% in both acidic pH and bile environments. Among the isolates, L. plantarum TDM41 demonstrated the highest auto-aggregation, co-aggregation, and hydrophobicity with (44.9 ± 1.7)%, (41.4 ± 0.2)%, and (52.1 ± 0.1)% values, respectively. The cell-free supernatant of the isolates exhibited antibacterial activity against foodborne pathogens of Escherichia coli, Salmonella Enteritidis, and Staphylococcus aureus. Each isolate exhibited various levels of resistance and susceptibility to seven antibiotics and resistance was observed against four of the antibiotics tested. After performing a principal component analysis, Pediococcus pentosaceus TAA01, L. mesenteroides TDB22, and L. plantarum TDM41 were selected as the most promising ethanol-tolerant probiotic isolates.
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Affiliation(s)
- Gashaw Assefa Yehuala
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; (G.A.Y.); (S.-H.K.)
- College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa P.O. Box 16417, Ethiopia
- School of Chemical and Bio-Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa P.O. Box 385, Ethiopia;
| | - Nurelegne Tefera Shibeshi
- School of Chemical and Bio-Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa P.O. Box 385, Ethiopia;
| | - Su-Hyeon Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; (G.A.Y.); (S.-H.K.)
- Food and Bio-Industry Institute, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Mi-Kyung Park
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; (G.A.Y.); (S.-H.K.)
- Food and Bio-Industry Institute, Kyungpook National University, Daegu 41566, Republic of Korea
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Santos ICD, Barbosa LN, Sposito PH, Silva KRD, Caldart ET, Costa LMB, Martins LA, Gonçalves DD. Presence and Resistance Profile of Staphylococcus spp. Isolated from Slaughtered Pigs. Vector Borne Zoonotic Dis 2023; 23:576-582. [PMID: 37695815 DOI: 10.1089/vbz.2022.0074] [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: 09/13/2023] Open
Abstract
Background: The objective of this study was to isolate Staphylococcus spp. and to characterize the resistance profile in nasal samples from pigs slaughtered for consumption. Material and Methods: Intranasal swabs were collected from 100 pigs immediately after bleeding in a slaughterhouse located in the largest pork production region in Brazil, these samples were cultured and isolated to identify Staphylococcus spp. in coagulase positive (CoPS) and coagulase negative (CoNS) and molecular identification of Staphylococcus aureus and then subjected to the disk-diffusion test to identify the bacterial resistance profile and search for the mecA gene. Results: Of the 100 samples collected, it was possible to isolate 79 Staphylococcus spp., of these, 72.15% were classified as CoNS and 27.85% of the isolates classified as CoPS. Among the CoPS isolates, 77.27% were identified as S. aureus. Through the disk-diffusion test, it was possible to verify isolates resistant to clindamycin and erythromycin (98.73%), chloramphenicol (93.67%), and doxycycline (89.87%). There was amplification of the mecA gene in 30.38% of Staphylococcus spp. Conclusion: The results of this study highlight the need for the careful use of antibiotics in swine production, in addition to aiming at continuous surveillance in relation to the rate of multiresistant microorganisms within these environments, focused on large industrial centers; such results also indicate the importance of understanding, through future studies, possible pathways to transmission of these microorganisms directly, or indirectly, through meat products derived from these pigs, which can be considered neglected diffusers of variants of Staphylococcus spp. resistant to antibiotics or carriers of important resistance genes related to One Health.
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Affiliation(s)
| | | | - Paulo Henrique Sposito
- Médico Veterinário do Ministério da Agricultura, Pecuária e Abastecimento, MAPA/DF, Brasilia, Brasil
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Karakulska J, Woroszyło M, Szewczuk M, Fijałkowski K. Identification, Superantigen Toxin Gene Profile and Antimicrobial Resistance of Staphylococci Isolated from Polish Primitive Sheep Breeds. Animals (Basel) 2022; 12:ani12162139. [PMID: 36009729 PMCID: PMC9404845 DOI: 10.3390/ani12162139] [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: 07/01/2022] [Revised: 08/14/2022] [Accepted: 08/17/2022] [Indexed: 11/16/2022] Open
Abstract
The study aimed to analyze staphylococcal microbiota of the nasal cavity of the primitive sheep breeds Polish Świniarka and Wrzosówka kept on the same ecological farm. The research included the identification of staphylococcal species, evaluation of the prevalence of genes encoding enterotoxins, staphylococcal enterotoxin-like proteins, exfoliative toxins, toxic shock syndrome toxin 1, and detection of antimicrobial resistance. From 61 swab samples gathered from Świniarka (33) and Wrzosówka (28) healthy sheep, 127 coagulase-negative staphylococci (CoNS) were isolated. Based on PCR-RFLP analysis of the gap gene using AluI and HpyCH4V enzymes, the isolates were identified as: Staphylococcus xylosus (33.9%), S. equorum (29.1%), S. arlettae (15%), S. warneri (9.4%), S. lentus (7.9%), S. succinus (3.9%) and S. sciuri (0.8%). Three of these species, S. lentus, S. succinus, and S. sciuri, were detected only from the Świniarka breed. It was found that 77.2% of isolates harbored from 1 to 7 out of 21 analyzed genes for superantigenic toxins. The greatest diversity of toxin genes was recorded for S. equorum (16 different genes). The most prevalent gene was ser (40.2%). The incidence and number of resistances to antimicrobials were found to be bacterial species but not sheep breed dependent. The highest percentage of resistance was found for S. sciuri. The most frequent resistance was observed to clindamycin (45.7%). The findings of this study prove that toxigenic and antimicrobial resistant CoNS can colonize the nasal cavity of healthy sheep.
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Affiliation(s)
- Jolanta Karakulska
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Piastów 45, 70-311 Szczecin, Poland
| | - Marta Woroszyło
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Piastów 45, 70-311 Szczecin, Poland
| | - Małgorzata Szewczuk
- Department of Ruminant Science, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Janickiego 29, 71-270 Szczecin, Poland
| | - Karol Fijałkowski
- Department of Microbiology and Biotechnology, Faculty of Biotechnology and Animal Husbandry, West Pomeranian University of Technology in Szczecin, Piastów 45, 70-311 Szczecin, Poland
- Correspondence:
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Antibiotics Resistance and Virulence of Staphylococcus aureus Isolates Isolated from Raw Milk from Handmade Dairy Retail Stores in Hefei City, China. Foods 2022; 11:foods11152185. [PMID: 35892770 PMCID: PMC9330789 DOI: 10.3390/foods11152185] [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: 06/28/2022] [Revised: 07/13/2022] [Accepted: 07/21/2022] [Indexed: 12/02/2022] Open
Abstract
Handmade dairy products, which retain the nutrients in milk to the greatest extent, have become popular in China recently. However, no investigation regarding the characteristics of Staphylococcus aureus (S. aureus) in raw milk of handmade dairy retail stores has been reported. Here, we investigated the antimicrobial susceptibility, virulence, biofilm formation, and genetic diversity of S. aureus in raw milk from handmade dairy retail stores in Hefei, China. After 10 months of long-term monitoring, 50 S. aureus strains were isolated from 69 different raw milk samples, of which 6 were positive for methicillin-resistant S. aureus (MRSA). The resistance rates of these isolates to ampicillin, erythromycin, kanamycin, tetracycline, sulfamethoxazole-trimethoprim, gentamicin, ofloxacin, oxacillin, chloramphenicol, and doxycycline were 56, 54, 40, 24, 22, 22, 18, 14, 8 and 6%, respectively. All 50 isolates were susceptible to vancomycin and 29 strains (58%) showed multidrug resistance phenotype. For enterotoxins genes, selp (14%) was detected the most frequently, followed by sea (6%), sec (4%), sei (4%), ser (4%), selj (4%), and seh (2%). By microplate assay, 32 and 68% of the strains showed moderate and strong biofilm formation ability, respectively. Fifty isolates were discriminated into nine spa types, and the most common spa typing was t034 (42%). The results of this study indicate that S. aureus from raw milk may constitute a risk concerning food poisoning, and more attention must be given to awareness and hygienic measures in the food industry.
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Clinical Infections, Antibiotic Resistance, and Pathogenesis of Staphylococcus haemolyticus. Microorganisms 2022; 10:microorganisms10061130. [PMID: 35744647 PMCID: PMC9231169 DOI: 10.3390/microorganisms10061130] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/27/2022] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
Staphylococcus haemolyticus (S. haemolyticus) constitutes the main part of the human skin microbiota. It is widespread in hospitals and among medical staff, resulting in being an emerging microbe causing nosocomial infections. S. haemolyticus, especially strains that cause nosocomial infections, are more resistant to antibiotics than other coagulase-negative Staphylococci. There is clear evidence that the resistance genes can be acquired by other Staphylococcus species through S. haemolyticus. Severe infections are recorded with S. haemolyticus such as meningitis, endocarditis, prosthetic joint infections, bacteremia, septicemia, peritonitis, and otitis, especially in immunocompromised patients. In addition, S. haemolyticus species were detected in dogs, breed kennels, and food animals. The main feature of pathogenic S. haemolyticus isolates is the formation of a biofilm which is involved in catheter-associated infections and other nosocomial infections. Besides the biofilm formation, S. haemolyticus secretes other factors for bacterial adherence and invasion such as enterotoxins, hemolysins, and fibronectin-binding proteins. In this review, we give updates on the clinical infections associated with S. haemolyticus, highlighting the antibiotic resistance patterns of these isolates, and the virulence factors associated with the disease development.
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Pogány Simonová M, Chrastinová Ľ, Ščerbová J, Focková V, Plachá I, Formelová Z, Chrenková M, Lauková A. Preventive Potential of Dipeptide Enterocin A/P on Rabbit Health and Its Effect on Growth, Microbiota, and Immune Response. Animals (Basel) 2022; 12:ani12091108. [PMID: 35565535 PMCID: PMC9103145 DOI: 10.3390/ani12091108] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/29/2022] [Accepted: 04/22/2022] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Rabbits are animals sensitive to alimentary disturbances and various spoilage agents, mostly during the weaning period. For this reason, the use of natural feed additives has become an area of research in rabbit nutrition, mainly with a focus on prevention. The “in vivo” administration of bacteriocins/enterocins shows an increasing potential in the prevention/treatment of animals’ diseases. Therefore, our study focused on the preventive potential of the dipeptide enterocin (Ent) A/P against the methicillin-resistant (MR) Staphylococcus epidermidis SE P3/Tr2a strain in rabbit model, determining its effect on the growth performance, phagocytic activity, secretory (s) IgA, and gut microbial composition of rabbits. Ent A/P increased the weight gain of rabbits and its antibacterial effect showed a tendency to stabilize and improve gut microbiota due to reduction of MR staphylococci, total bacteria, and coliforms. The immune-stimulatory effect of Ent A/P was noted due to increased phagocytic activity. Achieved results showed the great potential of Ent A/P application as a feed additive in rabbit nutrition to improve the health and productivity of animals. Abstract The present study investigated the effect of the dipeptide enterocin (Ent) A/P on growth, immune response, and intestinal microbiota in rabbits. Eighty-eight rabbits (aged five weeks, M91 meat line, both sexes) were divided into three experimental groups: E (Ent A/P; 50 µL/animal/day for 14 days; between 0–14 days); S (methicillin-resistant Staphylococcus epidermidis SE P3/Tr2a strain; 500 µL/animal/day for 7 days starting at day 14 to day 21); and E + S (Ent A/P between 0–14 days and SE P3/Tr2a strain between 14–21 days) groups, and the control group (C). The additives were administered in drinking water. Administration of Ent A/P lead to an increase in weight gain, reduction of feed conversion; phagocytic activity was stimulated and gut microbiota were optimized due to reduction of coliforms, total bacterial count, and methicillin-resistant staphylococci. Good health and increased weight gain also showed that methicillin-resistant S. epidermidis SE P3/Tr2a strain did not have any pathogenic effect on rabbits’ health status.
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Affiliation(s)
- Monika Pogány Simonová
- Centre of Biosciences of the Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Kosice, Slovakia; (J.Š.); (V.F.); (I.P.); (A.L.)
- Correspondence: ; Tel.: +421-55-7922964
| | - Ľubica Chrastinová
- National Agricultural and Food Centre, Hlohovecká 2, 951 41 Lužianky, Slovakia; (Ľ.C.); (Z.F.); (M.C.)
| | - Jana Ščerbová
- Centre of Biosciences of the Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Kosice, Slovakia; (J.Š.); (V.F.); (I.P.); (A.L.)
| | - Valentína Focková
- Centre of Biosciences of the Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Kosice, Slovakia; (J.Š.); (V.F.); (I.P.); (A.L.)
| | - Iveta Plachá
- Centre of Biosciences of the Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Kosice, Slovakia; (J.Š.); (V.F.); (I.P.); (A.L.)
| | - Zuzana Formelová
- National Agricultural and Food Centre, Hlohovecká 2, 951 41 Lužianky, Slovakia; (Ľ.C.); (Z.F.); (M.C.)
| | - Mária Chrenková
- National Agricultural and Food Centre, Hlohovecká 2, 951 41 Lužianky, Slovakia; (Ľ.C.); (Z.F.); (M.C.)
| | - Andrea Lauková
- Centre of Biosciences of the Slovak Academy of Sciences, Institute of Animal Physiology, Šoltésovej 4-6, 040 01 Kosice, Slovakia; (J.Š.); (V.F.); (I.P.); (A.L.)
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Genome-based characterization of a plasmid-associated micrococcin P1 biosynthetic gene cluster and virulence factors in Mammaliicoccus sciuri IMDO-S72. Appl Environ Microbiol 2021; 88:e0208821. [PMID: 34936836 DOI: 10.1128/aem.02088-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Analysis of the de novo assembled genome of Mammaliicoccus sciuri IMDO-S72 revealed the genetically encoded machinery behind its earlier reported antibacterial phenotype and gave further insight into the repertoire of putative virulence factors of this recently reclassified species. A plasmid-encoded biosynthetic gene cluster was held responsible for the antimicrobial activity of M. sciuri IMDO-S72, comprising genes involved in thiopeptide production. The compound encoded by this gene cluster was structurally identified as micrococcin P1. Further examination of its genome highlighted the ubiquitous presence of innate virulence factors mainly involved in surface colonization. Determinants contributing to aggressive virulence were generally absent, with exception of a plasmid-associated ica cluster. The native antibiotic resistance genes sal(A) and mecA were detected within the genome, amongst others, but were not consistently linked with a resistant phenotype. While mobile genetic elements were identified within the genome, such as an untypeable SCC element, they proved to be generally free of virulence- and antibiotic-related genes. These results further suggest a commensal lifestyle of M. sciuri and indicate the association of antibiotic resistance determinants with mobile genetic elements, as an important factor in conferring antibiotic resistance, in addition to their unilateral annotation. Importance Mammaliicoccus sciuri has been put forward as an important carrier of virulence and antibiotic resistance genes, which can be transmitted to clinically important staphylococcal species such as Staphylococcus aureus. As a common inhabitant of mammal skin, this species is believed to have a predominant commensal lifestyle although it has been reported as an opportunistic pathogen in some cases. This study provides an extensive genome-wide description of its putative virulence potential taking into consideration the genomic context in which these genes appear, an aspect that is often overlooked during virulence analysis. Additional genome and biochemical analysis linked M. sciuri with the production of micrococcin P1, gaining further insight to which extent these biosynthetic gene cluster are distributed amongst different related species. The frequent plasmid-associated character hints that these traits can be horizontally transferred and might confer a competitive advantage to its recipient within its ecological niche.
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Simonová MP, Maďar M, Lauková A. Effect of enterocins against methicillin-resistant animal-derived staphylococci. Vet Res Commun 2021; 45:467-473. [PMID: 34599692 DOI: 10.1007/s11259-021-09841-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/25/2021] [Indexed: 11/24/2022]
Abstract
The occurence and spread of animal-derived methicillin resistant staphylococci (MRS) worldwide is a current problem, especially due to their increasing incidence in food animals and their products, with possible contamination of food consumers and handlers. Staphylococci isolated from animals (n = 123) were identified with MALDI-TOF mass spectrometry and screened for methicillin/oxacillin/cefoxitin resistance (MR) using the disk diffusion method. Twenty-three phenotypically MRS strains were analysed using PBP2' Latex Agglutination Test Kit to confirm the phenotypic MR and PCR was performed for mecA gene detection; mecA gene positive strains were furtherly confirmed by means of sequencing. The susceptibility of MRS to 11 partially-purified enterocins (Ent) produced by E. faecium, E. durans and E. mundtii strains of animal, feed/food and environmental origin was checked using agar spot tests. Out of 23 MRS, PBP testing confirmed MR in 17 strains. Three Staphylococcus epidermidis and one S. vitulinus were mecA positive. The majority of MRS, including two mecA gene-positive strains S. epidermidis R44/1 and P3/Tr2a, were susceptible to the tested enterocins, mainly to Ent7420, EntA(P)/EK13, Ent412, Ent55 and Ent9296 (in the range 100 - 12,800 AU/mL). The most susceptible strains appeared to be the mecA gene-positive S. epidermidis SE R44/1 and SE P3/Tr2a strains, inhibited by eight enterocins out of 11 tested (100-200 AU/mL). Only four strains (including mecA gene positive S. epidermidis SE P3/Tr1 and S. vitulinus SV K12PL/1) were resistant to the tested antimicrobial substances. These results indicate that the enterocins used offer a promising option for prevention and treatment of bacterial infection caused by MRS in animals.
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Affiliation(s)
- Monika Pogány Simonová
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Šoltésovej 4-6, 04001, Košice, Slovakia.
| | - Marián Maďar
- Department of Microbiology and Immunology, University of the Veterinary Medicine and Pharmacy, Komenského 73, 04181, Košice, Slovakia
| | - Andrea Lauková
- Institute of Animal Physiology, Centre of Biosciences of the Slovak Academy of Sciences, Šoltésovej 4-6, 04001, Košice, Slovakia
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Smith JT, Andam CP. Extensive Horizontal Gene Transfer within and between Species of Coagulase-Negative Staphylococcus. Genome Biol Evol 2021; 13:evab206. [PMID: 34498042 PMCID: PMC8462280 DOI: 10.1093/gbe/evab206] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2021] [Indexed: 01/10/2023] Open
Abstract
Members of the gram-positive bacterial genus Staphylococcus have historically been classified into coagulase-positive Staphylococcus (CoPS) and coagulase-negative Staphylococcus (CoNS) based on the diagnostic presentation of the coagulase protein. Previous studies have noted the importance of horizontal gene transfer (HGT) and recombination in the more well-known CoPS species Staphylococcus aureus, yet little is known of the contributions of these processes in CoNS evolution. In this study, we aimed to elucidate the phylogenetic relationships, genomic characteristics, and frequencies of HGT in CoNS, which are now being recognized as major opportunistic pathogens of humans. We compiled a data set of 1,876 publicly available named CoNS genomes. These can be delineated into 55 species based on allele differences in 462 core genes and variation in accessory gene content. CoNS species are a reservoir of transferrable genes associated with resistance to diverse classes of antimicrobials. We also identified nine types of the mobile genetic element SCCmec, which carries the methicillin resistance determinant mecA. Other frequently transferred genes included those associated with resistance to heavy metals, surface-associated proteins related to virulence and biofilm formation, type VII secretion system, iron capture, recombination, and metabolic enzymes. The highest frequencies of receipt and donation of recombined DNA fragments were observed in Staphylococcus capitis, Staphylococcus caprae, Staphylococcus hominis, Staphylococcus haemolyticus, and members of the Saprophyticus species group. The variable rates of recombination and biases in transfer partners imply that certain CoNS species function as hubs of gene flow and major reservoir of genetic diversity for the entire genus.
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Affiliation(s)
- Joshua T Smith
- Department of Molecular, Cellular and Biomedical Sciences, University of New Hampshire, Durham, New Hampshire, USA
| | - Cheryl P Andam
- Department of Biological Sciences, University at Albany, State University of New York, New York, USA
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Júnior AES, Vasconcelos PC, Saraiva MMS, Filho LS, Silva NMV, Givisiez PEN, Oliveira CJB. Antimicrobial susceptibility profiles of Staphylococcus spp. contaminating raw goat milk. Vet World 2021; 14:1074-1079. [PMID: 34220106 PMCID: PMC8243692 DOI: 10.14202/vetworld.2021.1074-1079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 03/17/2021] [Indexed: 11/16/2022] Open
Abstract
Background and Aim Antimicrobial resistance poses a major threat to global public health. Foodstuff of animal origin can serve as potential vehicles for the dissemination of antimicrobial-resistant bacteria and resistance genes to consumers. In view of the lack of knowledge about antimicrobial resistance in bacteria associated with goat milk, the aim of this study was to report species-level identification and antimicrobial susceptibility profiles of a large collection of Staphylococcus spp. isolates recovered from raw goat milk in Brazil. Materials and Methods A total of 434 Staphylococcus spp. isolates originated from 510 goat milk samples in Northeast Brazil were investigated. The isolates were obtained by conventional microbiological methods. Species identification and antimicrobial susceptibility testing were performed by means of a semi-automated system using a panel for biochemical tests and broth microdilution method for 19 antimicrobial drugs. Results Although Staphylococcus aureus (22.6%) accounted for the majority of the isolates, a total of 13 different non-aureus staphylococci spp. were identified. High resistance rates against erythromycin (40.8%), and the beta-lactams ampicillin (45.9%) and penicillin (42.9%) were observed among S. aureus isolates. The most significant findings were related to the resistance against quinupristin-dalfopristin, a drug of last resort used in human medicine to treat infections caused by vancomycin-resistant S. aureus and enterococci. Conclusion The high diversity of Staphylococcus spp. showing phenotypic resistance against different antimicrobial drugs encourages further investigations on the real impact of these bacteria as reservoirs of antimicrobial resistance genes to consumers. Furthermore, the potential impact of technological processes, such as pasteurization, fermentation, and maturation, on the maintenance and dissemination of antimicrobial resistance among the microbial populations in milk and dairy products must also be investigated.
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Affiliation(s)
- Abimael E Silva Júnior
- Department of Animal Science, College for Agricultural Sciences, Federal University of Paraiba, Brazil
| | - Priscylla C Vasconcelos
- Department of Animal Science, College for Agricultural Sciences, Federal University of Paraiba, Brazil
| | - Mauro M S Saraiva
- Department of Animal Science, College for Agricultural Sciences, Federal University of Paraiba, Brazil
| | - Lauro Santos Filho
- Department of Pharmaceutical Sciences, College of Health Sciences, Federal University of Paraiba, Brazil
| | - Núbia M V Silva
- Department of Animal Science, College for Agricultural Sciences, Federal University of Paraiba, Brazil
| | - Patricia E N Givisiez
- Department of Animal Science, College for Agricultural Sciences, Federal University of Paraiba, Brazil
| | - Celso J B Oliveira
- Department of Animal Science, College for Agricultural Sciences, Federal University of Paraiba, Brazil
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12
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Cave R, Misra R, Chen J, Wang S, Mkrtchyan HV. Comparative Genomics Analysis Demonstrated a Link Between Staphylococci Isolated From Different Sources: A Possible Public Health Risk. Front Microbiol 2021; 12:576696. [PMID: 33716994 PMCID: PMC7947369 DOI: 10.3389/fmicb.2021.576696] [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: 06/26/2020] [Accepted: 01/26/2021] [Indexed: 01/21/2023] Open
Abstract
Coagulase-negative staphylococci (CoNS) have been recovered from different ecological niches, however, little is known about the genetic relatedness of these isolates. In this study, we used whole genome sequencing to compare mecA positive (mecA +) Staphylococcus epidermidis, Staphylococcus haemolyticus and Staphylococcus hominis isolates recovered from hand-touched surfaces from general public settings in East and West London with data of isolates deposited to European Nucleotide Archive (ENA) by other research groups. These included isolates associated with hospital settings (including those recovered from patients), healthy humans, livestock, pets, plants and natural, and other public environments. Using core and accessory phylogenetic analyses we were able to identify that the mecA+ S. epidermidis and S. haemolyticus isolates recovered from general public settings were genetically related to isolates recovered from the bloodstream, urinary tract and eye infections. S. epidermidis isolates recovered in our study were also shown to be genetically related to isolates previously recovered from livestock/livestock housing, whereas S. haemolyticus isolates were genetically related to isolates recovered from a dog and kefir (fermented cow milk drink). MecA + S. hominis isolates were not genetically related to any isolates recovered from clinical samples but were genetically related to isolates recovered from mosquitoes, air samples (residential areas) and kefir. All three species showed to have genetic relatedness to isolates recovered from healthy humans. These results show that CoNS isolates in this study share genetic similarities with those of different lineages and that mecA+ S. epidermidis and S. haemolyticus isolates found in general public settings in this study may pose a risk to public health.
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Affiliation(s)
- Rory Cave
- School of Health, Sport and Bioscience, University of East London, London, United Kingdom
| | - Raju Misra
- Natural History Museum, Core Research Laboratories, Molecular Biology, London, United Kingdom
| | - Jiazhen Chen
- Department of Infectious Disease, Huashan Hospital, Fudan University, Shanghai, China
| | - Shiyong Wang
- Department of Infectious Disease, Huashan Hospital, Fudan University, Shanghai, China
| | - Hermine V Mkrtchyan
- School of Biomedical Sciences, University of West London, London, United Kingdom
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13
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Schauer B, Szostak MP, Ehricht R, Monecke S, Feßler AT, Schwarz S, Spergser J, Krametter-Frötscher R, Loncaric I. Diversity of methicillin-resistant coagulase-negative Staphylococcus spp. and methicillin-resistant Mammaliicoccus spp. isolated from ruminants and New World camelids. Vet Microbiol 2021; 254:109005. [PMID: 33582485 DOI: 10.1016/j.vetmic.2021.109005] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 01/29/2021] [Indexed: 11/18/2022]
Abstract
Information about livestock carrying methicillin-resistant coagulase-negative staphylococci and mammaliicocci (MRCoNS/MRM) is scarce. The study was designed to gain knowledge of the prevalence, the phenotypic and genotypic antimicrobial resistance and the genetic diversity of MRCoNS/MRM originating from ruminants and New World camelids. In addition, a multi-locus sequence typing scheme for the characterization of Mammaliicoccus (formerly Staphylococcus) sciuri was developed. The study was conducted from April 2014 to January 2017 at the University Clinic for Ruminants and the Institute of Microbiology at the University of Veterinary Medicine Vienna. Seven hundred twenty-three nasal swabs originating from ruminants and New World camelids with and without clinical signs were examined. After isolation, MRCoNS/MRM were identified by MALDI-TOF, rpoB sequencing and typed by DNA microarray-based analysis and PCR. Antimicrobial susceptibility testing was conducted by agar disk diffusion. From all 723 nasal swabs, 189 MRCoNS/MRM were obtained. Members of the Mammaliicoccus (M.) sciuri group were predominant (M. sciuri (n = 130), followed by M. lentus (n = 43), M. fleurettii (n = 11)). In total, 158 out of 189 isolates showed phenotypically a multi-resistance profile. A seven-loci multi-locus sequence typing scheme for M. sciuri was developed. The scheme includes the analysis of internal segments of the house-keeping genes ack, aroE, ftsZ, glpK, gmk, pta1 and tpiA. In total, 28 different sequence types (STs) were identified among 92 selected M. sciuri isolates. ST1 was the most prevalent ST (n = 35), followed by ST 2 (n = 15), ST3 and ST5 (each n = 5), ST4 (n = 3), ST6, ST7, ST8, ST9, ST10 and ST11 (each n = 2).
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Affiliation(s)
- B Schauer
- University Clinic for Ruminants, University of Veterinary Medicine, 1210, Vienna, Austria; Institute of Microbiology, University of Veterinary Medicine, 1210, Vienna, Austria
| | - M P Szostak
- Institute of Microbiology, University of Veterinary Medicine, 1210, Vienna, Austria
| | - R Ehricht
- Leibniz Institute of Photonic Technology (IPHT), 07743, Jena, Germany; InfectoGnostics Research Campus, Philosophenweg 7, 07749, Jena, Germany; Friedrich Schiller University Jena, Institute of Physical Chemistry, 07743, Jena, Germany
| | - S Monecke
- Leibniz Institute of Photonic Technology (IPHT), 07743, Jena, Germany; InfectoGnostics Research Campus, Philosophenweg 7, 07749, Jena, Germany; Institute for Medical Microbiology and Hygiene, Technical University of Dresden, 01307, Dresden, Germany
| | - A T Feßler
- Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany
| | - S Schwarz
- Institute of Microbiology and Epizootics, Centre for Infection Medicine, Department of Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany
| | - J Spergser
- Institute of Microbiology, University of Veterinary Medicine, 1210, Vienna, Austria
| | - R Krametter-Frötscher
- University Clinic for Ruminants, University of Veterinary Medicine, 1210, Vienna, Austria
| | - I Loncaric
- Institute of Microbiology, University of Veterinary Medicine, 1210, Vienna, Austria.
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14
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Gizaw F, Kekeba T, Teshome F, Kebede M, Abreham T, Hayishe H, Waktole H, Tufa TB, Edao BM, Ayana D, Abunna F, Beyi AF, Abdi RD. Distribution and antimicrobial resistance profile of coagulase-negative staphylococci from cattle, equipment, and personnel on dairy farm and abattoir settings. Heliyon 2020; 6:e03606. [PMID: 32258466 PMCID: PMC7114745 DOI: 10.1016/j.heliyon.2020.e03606] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/20/2019] [Accepted: 03/12/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Safe food is central to social wellbeing. Coagulase-negative staphylococci (CNS) are a threat to food safety because they may harbor multiple enterotoxins and antimicrobial resistance (AMR) genes. CNS bacteria are an emerging nosocomial pathogen in public health. CNS also cause bovine mastitis with a significant economic loss in the dairy industry and may introduce toxins to the food supply chain resulting in foodborne illnesses. However, information on CNS and their AMR status are scarce in food animal production and processing lines in Ethiopia. METHODOLOGY This cross-sectional study evaluated the prevalence and AMR patterns of CNS in dairy farms and abattoirs using samples (n = 1001) from udder milk, beef carcass, personnel, and different abattoir and dairy equipment across five locations of central Oromia. The CNS isolates were identified via standard microbiological protocols and evaluated using disc diffusion test against 14 antimicrobials belonging to nine different broad classes. Uni-and-multivariable logistic regressions were used to analyze the association between potential risk factors (location, sample source, and sample type) and positivity to CNS. RESULTS The overall prevalence of CNS in the five different geographic locations studied was 9.6% (range: 6.7-12.4%) and varied between abattoirs (11.3%) and dairy farms (8.0%). CNS were prevalent on the carcass, milk, equipment, personnel hands, and nasal samples. Of all CNS isolates, 7.1, 10.7, 7.1, 12.5, 17.9, 10.7, 12.5, 7.1, 1.8, 5.4, 1.8, and 5.4% exhibited AMR simultaneously to single, double, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, and 13 antimicrobials, respectively. Overall, the isolates displayed 51 different AMR phenotypic patterns in which 50% of the isolates exhibited quadruple-resistance simultaneously based on the nine broad antimicrobial classes tested using 14 representative antimicrobials. The prevalence of multidrug-resistant (MDR) CNS (i.e. ≥ 3 classes of antimicrobials) was significantly (p = 0.037) different between locations with 100, 57.1, 50, 86.7, and 76.9% in Addis Ababa, Adama, Assela, Bishoftu, and Holeta, respectively. However, the prevalence of MDR CNS was not significantly (p = 0.20) different between dairy farms (87.5%) and abattoirs (71.9%). We evaluated the effect of acquiring cefoxitin-resistance of the isolates on the efficacy (i.e. inhibition zone) of the rest antimicrobials using General Linear Model after adjusting geographical locations as a random effect. Isolates with cefoxitin-resistance significantly displayed resistance to eight antimicrobials of 14 tested including amoxicillin, penicillin, cloxacillin, chloramphenicol, nalidixic acid, nitrofurantoin, and tetracycline (p = 0.000), and erythromycin (p = 0.02). On the other hand, cefoxitin-resistant isolates were susceptible to gentamicin, ciprofloxacin, kanamycin, streptomycin, and sulphamethoxazone trimethoprim (p = 0.000). Thus, antimicrobials such as gentamicin and ciprofloxacin may be an alternative therapy to treat cefoxitin-resistant CNS, as 96.4% of CNS isolates were susceptible to these antimicrobials. Overall, 94.1 and 54.5% of the CNS isolates among cefoxitin-resistant and cefoxitin-susceptible, respectively, harbored resistance to 3 or more classes of antimicrobials i.e. MDR. CONCLUSION The overall prevalence of CNS in milk, meat, equipment, and food handlers in central Oromia was 9.6% but varied by location and sample source. Some specific niches such as equipment, hands, and nasal cavities of personnel are significant sites for the source of CNS. Most, but not all, MDR CNS isolates were cefoxitin-resistant. Overall, 78.6% of the CNS tested were MDR and 50% had resistance to four or more broad classes of antimicrobials. CNS in food animals (raw milk and meat), equipment, and food handlers can be the source of MDR to the public. Personnel safety and hygienic food handling practices are needed. In addition, further investigation into the risk factors for the transmission and mechanisms of resistance of the CNS is required for intervention.
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Affiliation(s)
- Fikru Gizaw
- Samara University, College of Veterinary Medicine and Agriculture, P. O. Box 3015, Samara, Afar, Ethiopia
| | - Tolera Kekeba
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Fikadu Teshome
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Matewos Kebede
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Tekeste Abreham
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Halefom Hayishe
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Hika Waktole
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Takele Beyene Tufa
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Bedaso Mammo Edao
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Dinka Ayana
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Fufa Abunna
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Ashenafi Feyisa Beyi
- Addis Ababa University, College of Veterinary Medicine and Agriculture, P.O. Box 34, Bishoftu, Oromia, Ethiopia
| | - Reta Duguma Abdi
- Department of Biomedical Sciences, College of Veterinary Medicine, Long Island University, Greenvale, New York, 11548, USA
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Selection of native bacterial starter culture in the production of fermented meat sausages: Application potential, safety aspects, and emerging technologies. Food Res Int 2019; 122:371-382. [DOI: 10.1016/j.foodres.2019.04.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 04/06/2019] [Accepted: 04/08/2019] [Indexed: 01/04/2023]
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16
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Leroy S, Christieans S, Talon R. Tetracycline Gene Transfer in Staphylococcus xylosus in situ During Sausage Fermentation. Front Microbiol 2019; 10:392. [PMID: 30894841 PMCID: PMC6414713 DOI: 10.3389/fmicb.2019.00392] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 02/13/2019] [Indexed: 11/25/2022] Open
Abstract
The presence of determinants of resistance to antibiotics can constitute a possible safety hazard in coagulase-negative staphylococci (CNS), which are widely present in food of animal origin. Among CNS, S. xylosus is a species frequently isolated from fermented meat products. Resistance to tetracycline was found to be one of the most distributed resistances occurring in S. xylosus strains isolated from fermented sausages. We evaluated the transfer of tetracycline resistance in vitro and in situ between S. xylosus strains. We selected three strains isolated from dry fermented sausages, resistant to tetracycline but not to minocycline, their resistance occurring by a mechanism of active efflux encoded by the tetK gene. Only one strain was able to transfer its tetracycline resistance to a recipient strain initially susceptible and plasmid-free using a filter mating procedure. Transfer of tetracycline resistance was observed at very low frequencies of 3.4 × 10−9 per recipient. To further investigate the transferability of this tetracycline resistance, the donor and recipient strains were tested in pilot-scale fermented sausage production. This transfer was possible but at a low rate, 1.4 × 10−7, and only under conditions of a high inoculation level of 108 CFU/g of meat. The tetK gene is located on a small mobilizable plasmid close to Staphylococcus aureus pT181 plasmid. In conclusion, the transfer of tetracycline resistance between strains of S. xylosus is possible, but at a really low frequency in vitro and in situ in fermented sausages. Even if this represents a very moderate risk, it should be taken into account as required by the European approach of Qualified Presumption of Safety (QPS) and AFSSA safety recommendations, advising that strains used as starter cultures should not carry any transferable antibiotic resistance.
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Affiliation(s)
- Sabine Leroy
- Université Clermont Auvergne, INRA, MEDiS, Clermont-Ferrand, France
| | | | - Régine Talon
- Université Clermont Auvergne, INRA, MEDiS, Clermont-Ferrand, France
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17
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Santos JPD, Ferreira Júnior Á, Locce CC, Brasão SC, Bittar ER, Bittar JFF. EFFECTIVENESS OF TOBRAMYCIN AND CIPROFLOXACIN AGAINST BACTERIAL ISOLATES IN CANINE OTITIS EXTERNA IN UBERABA, MINAS GERAIS. CIÊNCIA ANIMAL BRASILEIRA 2019. [DOI: 10.1590/1089-6891v20e-52164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Abstract Canine otitis externa is a common and recurrent disease in domestic dogs. Although not being life threatening, it can result in the overuse of antibiotics, increased bacterial resistance and reduction of options for treatment. This study aimed to determine: the principal characteristics (age, race, and gender) of dogs affected by otitis externa; the most frequently bacteria identified as being associated with it and their antimicrobial resistance profiles. A total of 221 bacterial isolates were identified by morphological staining and biochemical processes and tested against eleven antibiotics. Among the 148 dogs diagnosed with otitis externa, 51.4% (76/148) were males and 48.6% (72/148) females. The cases were detected mainly in dogs with age above 7 years (54.7%; 81/148. Among the races examined, poodles were the most numerous (14.84%; 22/148). The most common bacteria found were: coagulase-negative Staphylococcus (StCN), 33.9% (75/221); coagulase-positive Staphylococcus (StCP), 19% (42/221); Proteus spp., 17.2% (38/221) and Pseudomonas aeruginosa, 9.5% (21/221). Simultaneous resistance to more than three classes of antimicrobials were most frequently detected in P. aeruginosa (61.9%; 13/21) and Proteus spp (39.47%; 15/38). According to data obtained from this study, two veterinary medications found to be most effective for topical treatment were tobramycin and ciprofloxacin.
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Founou LL, Founou RC, Essack SY, Djoko CF. Mannitol-fermenting methicillin-resistant staphylococci (MRS) in pig abattoirs in Cameroon and South Africa: A serious food safety threat. Int J Food Microbiol 2018; 285:50-60. [DOI: 10.1016/j.ijfoodmicro.2018.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 05/25/2018] [Accepted: 07/04/2018] [Indexed: 11/15/2022]
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19
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Founou LL, Founou RC, Allam M, Ismail A, Essack SY. Draft genome sequence of a methicillin-resistant Staphylococcus epidermidis isolate from swine. J Glob Antimicrob Resist 2018; 15:250-251. [PMID: 30366149 DOI: 10.1016/j.jgar.2018.10.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 06/04/2018] [Accepted: 10/14/2018] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Here we report the draft genome sequence of a methicillin-resistant Staphylococcus epidermidis strain (sequence type 59) isolated from a pooled rectal sample from pigs collected in an abattoir in South Africa. METHODS Genomic DNA of S. epidermidis PR246B0 was sequenced using an Illumina MiSeq platform. Generated reads were de novo assembled using CLC Genomics Workbench (QIAGEN). The assembled contigs were annotated and antimicrobial resistance genes, plasmids and the sequence type were identified. RESULTS The genome comprised a circular chromosome of 2537769bp, with a G-C content of 32.32% and various antimicrobial resistance genes associated with resistance to β-lactams, fluoroquinolones, aminoglycosides, fosfomycin, macrolides, lincosamides and tetracycline. Genome analysis also revealed the presence of seven plasmid replicon types. CONCLUSION The genome sequence reported herein will provide useful information for a better understanding of the genetic structure of the S. epidermidis genome in Africa.
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Affiliation(s)
- Luria Leslie Founou
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa; Department of Food Safety and Environmental Microbiology, Centre of Expertise and Biological Diagnostic of Cameroon (CEDBCAM), Yaoundé, Cameroon.
| | - Raspail Carrel Founou
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa; Department of Clinical Microbiology, Centre of Expertise and Biological Diagnostic of Cameroon (CEDBCAM), Yaoundé, Cameroon
| | - Mushal Allam
- Sequencing Core Facility, National Health Laboratory Service, Johannesburg, South Africa
| | - Arshad Ismail
- Sequencing Core Facility, National Health Laboratory Service, Johannesburg, South Africa
| | - Sabiha Yusuf Essack
- Antimicrobial Research Unit, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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Occurrence of methicillin-resistant Staphylococcus aureus in raw shellfish at retail markets in Malaysia and antibacterial efficacies of black seed (Nigella sativa) oil against MRSA. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.02.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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21
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Kumar D, Pornsukarom S, Sivaraman G, Thakur S. Environmental Dissemination of Multidrug Methicillin-ResistantStaphylococcus sciuriAfter Application of Manure from Commercial Swine Production Systems. Foodborne Pathog Dis 2018; 15:210-217. [DOI: 10.1089/fpd.2017.2354] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Deepak Kumar
- Department of Veterinary Public Health & Epidemiology, College of Veterinary and Animal Sciences, Govind Ballabh Pant University of Agriculture & Technology, Pantnagar, Uttarakhand, India
| | - Suchawan Pornsukarom
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - G.K. Sivaraman
- ICAR-Research Centre of Central Institute of Fisheries Technology, Veraval, Gujarat, India
| | - Siddhartha Thakur
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
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Wolny-Koładka K. Resistance to Antibiotics and the Occurrence of Genes Responsible for the Development of Methicillin Resistance in Staphylococcus Bacteria Isolated From the Environment of Horse Riding Centers. J Equine Vet Sci 2018. [DOI: 10.1016/j.jevs.2017.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Liu H, Li S, Meng L, Dong L, Zhao S, Lan X, Wang J, Zheng N. Prevalence, antimicrobial susceptibility, and molecular characterization of Staphylococcus aureus isolated from dairy herds in northern China. J Dairy Sci 2017; 100:8796-8803. [PMID: 28865851 DOI: 10.3168/jds.2017-13370] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 07/20/2017] [Indexed: 11/19/2022]
Abstract
Staphylococcus aureus is one of the main pathogens involved in dairy cow mastitis. Monitoring of antibiotic use would prove useful to assess the risk of Staph. aureus in raw milk. The objective of this work was to investigate the prevalence of Staph. aureus strais isolated from raw milk in northern China, and to characterize antimicrobial susceptibility of these strains and their key virulence genes. In total, 195 raw milk samples were collected from 195 dairy farms located in 4 cities of northern China from May to September 2015. Out of 195 samples, 54 (27.7%) were positive for Staph. aureus. Among these 54 samples, 54 strains of Staph. aureus were isolated, and 16 strains were identified as methicillin-resistant Staph. aureus. The strains exhibited high percentages of resistance to penicillin G (85.2%), ampicillin (79.6%), and erythromycin (46.3%). Moreover, 72% of the strains showed resistance to more than one antimicrobial agent. Overall, 63% of penicillin-resistant strains possessed the blaZ gene, and 60% of the erythromycin-resistant strains possessed erm(A), erm(B), erm(C), msr(A), or msr(B) genes with 8 different gene patterns. All isolates resistant to gentamicin, kanamycin, and oxacillin carried the aac6'-aph2", ant(4')-Ia, and mecA genes, respectively. Two tet(M)-positive isolates carried specific genes of the Tn916-Tn1545 transposon. The most predominant virulence genes were sec, sea, and pvl, which encode staphylococcal enterotoxins (sec and sea) and Panton-Valentine leukocidin, respectively. Thirty-two isolates (59.2%) harbored one or more virulence genes. The majority of Staph. aureus strains were multidrug resistant and carried multiple virulence genes, which may pose a risk to public health. Our data indicated that antimicrobial resistance of Staph. aureus was prevalent in dairy herds in northern China, and that antibiotics, especially penicillin G and ampicillin, to treat mastitis caused by Staph. aureus should be used with caution in northern China.
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Affiliation(s)
- Huimin Liu
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China
| | - Songli Li
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China
| | - Lu Meng
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China
| | - Lei Dong
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China
| | - Shengguo Zhao
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China
| | - Xinyi Lan
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China
| | - Jiaqi Wang
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China
| | - Nan Zheng
- Ministry of Agriculture Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China; Ministry of Agriculture-Milk and Dairy Product Inspection Center (Beijing), Beijing 100193, P. R. China.
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Sousa M, Silva N, Igrejas G, Sargo R, Benito D, Gómez P, Lozano C, Manageiro V, Torres C, Caniça M, Poeta P. Genetic Diversity and Antibiotic Resistance Among Coagulase-Negative Staphylococci Recovered from Birds of Prey in Portugal. Microb Drug Resist 2016; 22:727-730. [PMID: 26990729 DOI: 10.1089/mdr.2015.0266] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Wild animal populations in contact with antimicrobials and antimicrobial resistant bacteria that are daily released into the environment are able to become unintentional hosts of these resistant microorganisms. To clarify this issue, our study evaluated the presence of antibiotic resistance determinants on coagulase-negative staphylococci recovered from birds of prey and studied their genetic relatedness by pulsed-field gel electrophoresis (PFGE). The unusual vga(A) and erm(T) genes, which confer resistance to clindamycin and erythromycin, respectively, were detected in Staphylococcus sciuri or Staphylococcus xylosus strains and the tet(K) gene in Staphylococcus kloosii. The PFGE patterns showed that three S. xylosus (isolated of Strix aluco and Otus scops) and two S. sciuri (recovered from Strix aluco and Milvus migrans) were clonally indistinguishable. These animals could be a source of unusual antimicrobial resistance determinants for highly used antibiotics in veterinary clinical practice.
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Affiliation(s)
- Margarida Sousa
- 1 Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD) , Vila Real, Portugal .,2 Veterinary and Animal Science Research Center (CECAV), University of Trás-os-Montes and Alto Douro , Vila Real, Portugal .,3 Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro , Vila Real, Portugal .,4 Department of Food and Agriculture (FCEAI), Laboratory of Molecular Microbiology, University of La Rioja (UR) , Logroño, Spain .,5 National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AR-HAI), National Institute of Health Dr. Ricardo Jorge (NIH) , Lisboa, Portugal
| | - Nuno Silva
- 1 Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD) , Vila Real, Portugal .,2 Veterinary and Animal Science Research Center (CECAV), University of Trás-os-Montes and Alto Douro , Vila Real, Portugal .,6 Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Scotland, UK
| | - Gilberto Igrejas
- 3 Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro , Vila Real, Portugal .,7 Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro , Vila Real, Portugal .,8 UCIBIO-REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon , Lisbon, Caparica, Portugal
| | - Roberto Sargo
- 9 Wild Birds' Recovering Center (CRAS), University of Trás-os-Montes and Alto Douro , Vila Real, Portugal
| | - Daniel Benito
- 4 Department of Food and Agriculture (FCEAI), Laboratory of Molecular Microbiology, University of La Rioja (UR) , Logroño, Spain
| | - Paula Gómez
- 4 Department of Food and Agriculture (FCEAI), Laboratory of Molecular Microbiology, University of La Rioja (UR) , Logroño, Spain
| | - Carmen Lozano
- 4 Department of Food and Agriculture (FCEAI), Laboratory of Molecular Microbiology, University of La Rioja (UR) , Logroño, Spain
| | - Vera Manageiro
- 5 National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AR-HAI), National Institute of Health Dr. Ricardo Jorge (NIH) , Lisboa, Portugal .,10 Centre for the Study of Animal Sciences (CECA/ICETA), University of Oporto , Oporto, Portugal
| | - Carmen Torres
- 4 Department of Food and Agriculture (FCEAI), Laboratory of Molecular Microbiology, University of La Rioja (UR) , Logroño, Spain
| | - Manuela Caniça
- 5 National Reference Laboratory of Antibiotic Resistances and Healthcare Associated Infections (NRL-AR-HAI), National Institute of Health Dr. Ricardo Jorge (NIH) , Lisboa, Portugal .,10 Centre for the Study of Animal Sciences (CECA/ICETA), University of Oporto , Oporto, Portugal
| | - Patrícia Poeta
- 1 Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro (UTAD) , Vila Real, Portugal .,8 UCIBIO-REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon , Lisbon, Caparica, Portugal
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Discovery of Novel MLSB Resistance Methylase Genes and Their Associated Genetic Elements in Staphylococci. CURRENT CLINICAL MICROBIOLOGY REPORTS 2016. [DOI: 10.1007/s40588-016-0030-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Machado-Ferreira E, Vizzoni VF, Piesman J, Gazeta GS, Soares CAG. Bacteria associated with Amblyomma cajennense tick eggs. Genet Mol Biol 2015; 38:477-83. [PMID: 26537602 PMCID: PMC4763323 DOI: 10.1590/s1415-475738420150040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 05/25/2015] [Indexed: 01/27/2023] Open
Abstract
Ticks represent a large group of pathogen vectors that blood feed on a diversity of hosts. In the Americas, the Ixodidae ticks Amblyomma cajennense are responsible for severe impact on livestock and public health. In the present work, we present the isolation and molecular identification of a group of culturable bacteria associated with A. cajennense eggs from females sampled in distinct geographical sites in southeastern Brazil. Additional comparative analysis of the culturable bacteria from Anocentor nitens, Rhipicephalus sanguineus and Ixodes scapularis tick eggs were also performed. 16S rRNA gene sequence analyses identified 17 different bacterial types identified as Serratia marcescens, Stenotrophomonas maltophilia, Pseudomonas fluorescens, Enterobacter spp., Micrococcus luteus, Ochrobactrum anthropi, Bacillus cereus and Staphylococcus spp., distributed in 12 phylogroups. Staphylococcus spp., especially S. sciuri, was the most prevalent bacteria associated with A. cajennense eggs, occurring in 65% of the samples and also frequently observed infecting A. nitens eggs. S. maltophilia, S. marcescens and B. cereus occurred infecting eggs derived from specific sampling sites, but in all cases rising almost as pure cultures from infected A. cajennense eggs. The potential role of these bacterial associations is discussed and they possibly represent new targets for biological control strategies of ticks and tick borne diseases.
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Affiliation(s)
- Erik Machado-Ferreira
- Laboratório de Genética Molecular de Eucariontes e Simbiontes, Deptartamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Vinicius Figueiredo Vizzoni
- Laboratório de Genética Molecular de Eucariontes e Simbiontes, Deptartamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Joseph Piesman
- Bacterial Diseases Branch, Division of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, CO, USA
| | - Gilberto Salles Gazeta
- Laboratorio de Referência Nacional em Vetores das Riquetsioses, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Carlos Augusto Gomes Soares
- Laboratório de Genética Molecular de Eucariontes e Simbiontes, Deptartamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Čuvalová Z, Pipová M, Kantíková M, Brtková A, Fajber J. Virulence factors and antimicrobial resistance of coagulase-negative staphylococci isolated from drinking water. Open Life Sci 2015. [DOI: 10.1515/biol-2015-0034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractLittle has been published about the occurrence, speciesidentification, andpathogenicpotentialofcoagulasenegative staphylococci (CoNS) present in drinking water. In this study, ten species were identified among 57 isolates of staphylococci from 756 samples of chlorinated drinking water taken from public distribution networks in the Slovak Republic. S. warneri (37%), S. haemolyticus (23%), and S. saprophyticus ssp. saprophyticus (14%) were identified most frequently. Isolates did not produce coagulase, DNase, or hyaluronidase; production of gelatinase and lecithinase was observed in 28 and 22 isolates, respectively. Genetically encoded ability for production of enterotoxin SED was revealed in two isolates. Among ten antibiotics tested, resistance to ampicillin (66.7%), penicillin (64.9%), and erythromycin (57.9%) were observed most frequently. Resistance to gentamicin, vancomycin, or clindamycin was not confirmed. Production of β-lactamase was observed in 64.9% of isolates. Fourty-two isolates were resistant to two or more antibiotics tested, and eight isolates showed multiresistance. The presence of mecA gene was confirmed in 8 isolates, while PBP2a was revealed in 7. Two isolates of S. epidermidis were identified as methicillin-resistant (MRSE). The results demonstrate that CoNS in chlorinated drinking water may possess virulence factors and show resistance to various antibiotics. Therefore, their pathogenic potential should not be ignored.
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Affiliation(s)
- Zuzana Čuvalová
- 1State Veterinary and Food Institute, 026 01 Dolný Kubín, Slovak Republic
| | - Monika Pipová
- 2Department of Food Hygiene and Technology, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovak Republic
| | - Miriam Kantíková
- 1State Veterinary and Food Institute, 026 01 Dolný Kubín, Slovak Republic
| | - Andrea Brtková
- 1State Veterinary and Food Institute, 026 01 Dolný Kubín, Slovak Republic
| | - Jozef Fajber
- 1State Veterinary and Food Institute, 026 01 Dolný Kubín, Slovak Republic
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Antimicrobial resistance and population structure of Staphylococcus epidermidis recovered from animals and humans. Vet Microbiol 2015; 178:105-13. [PMID: 25937145 DOI: 10.1016/j.vetmic.2015.04.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/17/2015] [Accepted: 04/19/2015] [Indexed: 01/07/2023]
Abstract
While Staphylococcus epidermidis, as part of the commensal flora, is a well-known human opportunistic pathogen, only little is known about the genetic relatedness of S. epidermidis carriage isolates from animal and human origin. This study aimed to compare S. epidermidis recovered from livestock, livestock-farmers and humans associated with the hospital environment. A total of 193 S. epidermidis isolates from three populations [animals (n=33), farmers (n=86) and hospital-associated (n=74)] were characterized by broth microdilution antimicrobial susceptibility testing, staphylococcal cassette chromosome mec (SCCmec) typing, pulsed field gel electrophoresis (PFGE) and multilocus sequence typing (MLST). The overall S. epidermidis nasal colonization rate was low in animals (1-9%) but high among farmers (75%). High levels of multi-resistance were found in all populations. Tetracycline resistance was high in animal and farmer isolates; resistance to erythromycin, clindamycin and trimethoprim was high in animal and hospital-associated isolates. Methicillin-resistant S. epidermidis - MRSE isolates were found in all collections, with 22 (67%) MRSE in animals, 44 (51%) MRSE in farmers and 42 (57%) MRSE associated with the hospital-setting. Known SCCmec types and variants were detected in 79% of MRSE; the rest were non-typeable cassettes. In total 79 PFGE-types were found, of which 22 were shared between livestock, farmers and the hospital settings. Clonal complex 2 was predominant in all three populations and most STs corresponded to types previously observed in community and nosocomial S. epidermidis populations. S. epidermidis isolates from livestock, farmers and hospital-setting showed a high level of diversity, but some clones can be found in humans as well as in animals.
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Argudín MA, Vanderhaeghen W, Butaye P. Diversity of antimicrobial resistance and virulence genes in methicillin-resistant non-Staphylococcus aureus staphylococci from veal calves. Res Vet Sci 2015; 99:10-6. [PMID: 25637268 DOI: 10.1016/j.rvsc.2015.01.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/04/2014] [Accepted: 01/10/2015] [Indexed: 12/17/2022]
Abstract
In this study we determined whether methicillin-resistant non-Staphylococcus aureus (MRNAS) from veal calves may be a potential reservoir of antimicrobial-resistance and virulence genes. Fifty-eight MRNAS were studied by means of DNA-microarray and PCR for detection of antimicrobial resistance and virulence genes. The isolates carried a variety of antimicrobial-resistance genes [aacA-aphD, aadD, aph3, aadE, sat, spc, ampA, erm(A), erm(B), erm(C), erm(F), erm(T), lnu(A), msr(A)-msr(B), vga(A), mph(C), tet(K), tet(M), tet(L), cat, fexA, dfrA, dfrD, dfrG, dfrK, cfr, fusB, fosB, qacA, qacC, merA-merB]. Some isolates carried resistance genes without showing the corresponding resistance phenotype. Most MRNAS carried typical S. aureus virulence factors like proteases (sspP) and enterotoxins (seg) genes. Most Staphylococcus epidermidis isolates carried the arginine catabolic element, and nearly 40% of the Staphylococcus sciuri isolates carried leukocidins, and/or fibronectin-binding protein genes. MRNAS were highly multi-resistant and represent an important reservoir of antimicrobial resistance and virulence genes.
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Affiliation(s)
- M Angeles Argudín
- Department of Bacterial Diseases, Veterinary and Agrochemical Research Centre, Groeselenbergstraat 99, B-1180 Ukkel, Brussels, Belgium.
| | - Wannes Vanderhaeghen
- Department of Obstetrics, Reproduction and Herd Health, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Patrick Butaye
- Department of Bacterial Diseases, Veterinary and Agrochemical Research Centre, Groeselenbergstraat 99, B-1180 Ukkel, Brussels, Belgium; Department of Pathology, Bacteriology, and Avian Diseases, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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31
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Argudín MA, Vanderhaeghen W, Butaye P. Antimicrobial resistance and population structure of Staphylococcus epidermidis recovered from pig farms in Belgium. Vet J 2015; 203:302-8. [PMID: 25676880 DOI: 10.1016/j.tvjl.2015.01.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/24/2014] [Accepted: 01/11/2015] [Indexed: 02/07/2023]
Abstract
Pigs are known to harbour a variety of staphylococcal bacteria, including Staphylococcus epidermidis, in the upper respiratory tract. The aim of the present study was to determine the prevalence, genetic diversity, virulence and antimicrobial resistance of S. epidermidis in healthy pigs, as well as to identify the potential role of pigs as a reservoir of zoonotic infection. The overall prevalence of S. epidermidis carriage was 28%, with approximately half of the pigs tested (13.5%) carrying methicillin-resistant S. epidermidis (MRSE). Some isolates belonged to multilocus sequence types, associated with healthy human carriers or healthcare personnel (ST88, ST210) whereas others were related to animal or environmental strains (ST100, ST273). Most MRSE isolates carried SCCmec type IV, with SCCmec type V or a non-typeable SCCmec detected in the remaining isolates. Both MRSE and methicillin-susceptible S. epidermidis isolates showed a degree of antimicrobial resistance, with most resistant to tetracycline and/or trimethoprim antimicrobial drugs. Isolates subjected to micro-array analysis carried the antimicrobial resistance genes tet(K), tet(M) and dfrS1, while half carried the arginine catabolic element (ACME) associated with colonisation. Some MRSE ST273 strains also carried the ica operon involved in biofilm formation. These research findings provide insight into the population structure and characteristics of S. epidermidis carried by healthy pigs, suggesting a role for these strains as a potential reservoir for antimicrobial and virulence genes and indicating that exchange of strains might occur between pigs and humans.
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Affiliation(s)
- M Angeles Argudín
- Department of Bacterial Diseases, Veterinary and Agrochemical Research Centre, Groeselenbergstraat 99, B-1180 Brussels, Belgium.
| | - Wannes Vanderhaeghen
- Department of Obstetrics, Reproduction and Herd Health, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Patrick Butaye
- Department of Bacterial Diseases, Veterinary and Agrochemical Research Centre, Groeselenbergstraat 99, B-1180 Brussels, Belgium; Department of Pathology, Bacteriology, and Avian Diseases, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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Rossi F, Rizzotti L, Felis GE, Torriani S. Horizontal gene transfer among microorganisms in food: Current knowledge and future perspectives. Food Microbiol 2014; 42:232-43. [DOI: 10.1016/j.fm.2014.04.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 04/10/2014] [Indexed: 01/01/2023]
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Chajęcka-Wierzchowska W, Zadernowska A, Nalepa B, Sierpińska M, Łaniewska-Trokenheim Ł. Coagulase-negative staphylococci (CoNS) isolated from ready-to-eat food of animal origin--phenotypic and genotypic antibiotic resistance. Food Microbiol 2014; 46:222-226. [PMID: 25475289 DOI: 10.1016/j.fm.2014.08.001] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 04/30/2014] [Accepted: 08/08/2014] [Indexed: 10/24/2022]
Abstract
The aim of this work was to study the pheno- and genotypical antimicrobial resistance profile of coagulase negative staphylococci (CoNS) isolated from 146 ready-to-eat food of animal origin (cheeses, cured meats, sausages, smoked fishes). 58 strains were isolated, they were classified as Staphylococcus xylosus (n = 29), Staphylococcus epidermidis (n = 16); Staphylococcus lentus (n = 7); Staphylococcus saprophyticus (n = 4); Staphylococcus hyicus (n = 1) and Staphylococcus simulans (n = 1) by phenotypic and genotypic methods. Isolates were tested for resistance to erythromycin, clindamycin, gentamicin, cefoxitin, norfloxacin, ciprofloxacin, tetracycline, tigecycline, rifampicin, nitrofurantoin, linezolid, trimetoprim, sulphamethoxazole/trimethoprim, chloramphenicol, quinupristin/dalfopristin by the disk diffusion method. PCR was used for the detection of antibiotic resistance genes encoding: methicillin resistance--mecA; macrolide resistance--erm(A), erm(B), erm(C), mrs(A/B); efflux proteins tet(K) and tet(L) and ribosomal protection proteins tet(M). For all the tet(M)-positive isolates the presence of conjugative transposons of the Tn916-Tn1545 family was determined. Most of the isolates were resistant to cefoxitin (41.3%) followed by clindamycin (36.2%), tigecycline (24.1%), rifampicin (17.2%) and erythromycin (13.8%). 32.2% staphylococcal isolates were multidrug resistant (MDR). All methicillin resistant staphylococci harboured mecA gene. Isolates, phenotypic resistant to tetracycline, harboured at least one tetracycline resistance determinant on which tet(M) was most frequent. All of the isolates positive for tet(M) genes were positive for the Tn916-Tn1545 -like integrase family gene. In the erythromycin-resistant isolates, the macrolide resistance genes erm(C) or msr(A/B) were present. Although coagulase-negative staphylococci are not classical food poisoning bacteria, its presence in food could be of public health significance due to the possible spread of antibiotic resistance.
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Affiliation(s)
- Wioleta Chajęcka-Wierzchowska
- Chair of Industrial and Food Microbiology, Department of Food and Industrial Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland.
| | - Anna Zadernowska
- Chair of Industrial and Food Microbiology, Department of Food and Industrial Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland.
| | - Beata Nalepa
- Chair of Industrial and Food Microbiology, Department of Food and Industrial Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Magda Sierpińska
- Chair of Industrial and Food Microbiology, Department of Food and Industrial Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Łucja Łaniewska-Trokenheim
- Chair of Industrial and Food Microbiology, Department of Food and Industrial Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
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The ecological importance of the Staphylococcus sciuri species group as a reservoir for resistance and virulence genes. Vet Microbiol 2014; 171:342-56. [DOI: 10.1016/j.vetmic.2014.02.005] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 01/30/2014] [Accepted: 02/01/2014] [Indexed: 11/18/2022]
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35
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Chajęcka-Wierzchowska W, Zadernowska A, Nalepa B, Sierpińska M, Laniewska-Trokenheim L. Retail ready-to-eat food as a potential vehicle for Staphylococcus spp. harboring antibiotic resistance genes. J Food Prot 2014; 77:993-8. [PMID: 24853524 DOI: 10.4315/0362-028x.jfp-13-466] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Ready-to-eat (RTE) food, which does not need thermal processing before consumption, could be a vehicle for the spread of antibiotic-resistant microorganisms. As part of general microbiological safety checks, staphylococci are routinely enumerated in these kinds of foods. However, the presence of antibiotic-resistant staphylococci in RTE food is not routinely investigated, and data are only available from a small number of studies. The present study evaluated the pheno- and genotypical antimicrobial resistance profile of Staphylococcus spp. isolated from 858 RTE foods (cheeses, cured meats, sausages, smoked fishes, salads). Of 113 strains isolated, S. aureus was the most prevalent species, followed by S. xylosus, S. saprophyticus, and S. epidermidis. More than half (54.9%) of the isolates were resistant to at least one class of tested antibiotic; of these, 35.4% of the strains were classified as multidrug resistant. Most of the isolates were resistant to cefoxitin (49.6%), followed by clindamycin (39.3%), tigecycline (27.4%), quinupristin-dalfopristin (22.2%), rifampin (20.5%), tetracycline (17.9%), and erythromycin (8.5%). All methicillin-resistant staphylococci harbored the mecA gene. Among the isolates resistant to at least one antibiotic, 38 harbored tetracycline resistance determinant tet (M), 24 harbored tet (L), and 9 harbored tet (K). Of the isolates positive for tet (M) genes, 34.2% were positive for the Tn916-Tn1545-like integrase family gene. Our results indicated that retail RTE food could be considered an important route for the transmission of antibiotic-resistant bacteria harboring multiple antibiotic resistance genes.
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Affiliation(s)
- Wioleta Chajęcka-Wierzchowska
- Department of Industrial and Food Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Anna Zadernowska
- Department of Industrial and Food Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland.
| | - Beata Nalepa
- Department of Industrial and Food Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Magda Sierpińska
- Department of Industrial and Food Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Lucja Laniewska-Trokenheim
- Department of Industrial and Food Microbiology, Faculty of Food Science, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
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Batista JEC, Ferreira EL, Nascimento DCDO, Ventura RF, de Oliveira WLM, Leal NC, Lima-Filho JV. Antimicrobial Resistance and Detection of themecA Gene Besides Enterotoxin-Encoding Genes Among Coagulase-Negative Staphylococci Isolated from Clam Meat ofAnomalocardia brasiliana. Foodborne Pathog Dis 2013; 10:1044-9. [DOI: 10.1089/fpd.2013.1576] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Jacqueline Ellen Camelo Batista
- Laboratory of Microbiology and Immunology, Department of Biology, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
| | - Ewerton Lucena Ferreira
- Center of Research Aggeu Magalhães, Laboratory of Microbiology, Oswaldo Cruz Foundation (CPqAM/FIOCRUZ), Recife, Pernambuco, Brazil
| | | | - Roberta Ferreira Ventura
- Laboratory of Microbiology and Immunology, Department of Biology, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
| | - Wagner Luis Mendes de Oliveira
- Center of Research Aggeu Magalhães, Laboratory of Microbiology, Oswaldo Cruz Foundation (CPqAM/FIOCRUZ), Recife, Pernambuco, Brazil
| | - Nilma Cintra Leal
- Center of Research Aggeu Magalhães, Laboratory of Microbiology, Oswaldo Cruz Foundation (CPqAM/FIOCRUZ), Recife, Pernambuco, Brazil
| | - José Vitor Lima-Filho
- Laboratory of Microbiology and Immunology, Department of Biology, Federal Rural University of Pernambuco, Recife, Pernambuco, Brazil
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