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Fang C, Zhou Z, Li J, Zhou M. Emergence of Staphylococcus argenteus in pediatrics: Molecular insights from a hospital in East China. Virulence 2024; 15:2396477. [PMID: 39185671 PMCID: PMC11364062 DOI: 10.1080/21505594.2024.2396477] [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: 01/29/2024] [Revised: 07/02/2024] [Accepted: 07/11/2024] [Indexed: 08/27/2024] Open
Abstract
Staphylococcus argenteus is a novel species within the Staphylococcus aureus complex and can cause serious bloodstream infections (BSIs) in humans, which have been mainly reported in adults, especially the elderly. In this study, we analyzed the molecular characterization of a strain of S. argenteus (22WJ8192) isolated from the peripheral vein blood sample of a seven-month-old female infant in Eastern China. The 22WJ8192 belonged to sequence type (ST)2250 and harbored six antibiotic-resistance genes and 53 virulence genes and was resistant to penicillin. Additionally, we conducted a comparative analysis of the molecular characteristics of S. argenteus sourced from various origins within the dataset, predominantly from the National Center for Biotechnology Information Collection (NCBI) genome database. Antibiotic-resistance genes blaR1, blaI_of_Z, blaZ, fosB-Saur, tet(L), aph(3")-IIIa, mecA, and dfrG were more prevalent among the strains of human origin. Virulence genes lukF-PV, sak, sdrE, scn, sdrC, and sdrD were more prevalent among strains of human origin. The presence of antibiotic-resistance genes blaR1, blaI_of_Z, blaZ, fosB-Saur, and aph(3")-IIIa in strain 22WJ8192 was also more common among strains of human origin in the dataset. Conversely, the antibiotic-resistance genes tet(L), mecA, and dfrG, typically found in strains of human origin, were not detected in 22WJ8192. Additionally, virulence genes lukF-PV, sak, sdrE, scn, sdrC, and sdrD present in 22WJ8192 exhibited a higher prevalence among strains of human origin in the dataset. In conclusion, this study emphasizes the potential of S. argenteus ST2250 to induce severe bloodstream infections in infants, shedding light on the molecular characteristics of this strain.
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Affiliation(s)
- Chao Fang
- Department of Clinical Laboratory, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China
| | - Zheng Zhou
- Department of Clinical Laboratory, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China
| | - Jianping Li
- Department of Clinical Laboratory, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China
| | - Mingming Zhou
- Department of Clinical Laboratory, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang, China
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Gatti G, Taddei F, Marzucco A, Montanari MS, Dirani G, Zannoli S, Grumiro L, Brandolini M, Colosimo C, Dionisi L, Ingletto L, De Pascali AM, Scagliarini A, Sambri V, Cricca M. Isolation and Genomic Analysis of a Case of Staphylococcus argenteus ST2250 Related to Sepsis in Italy. Microorganisms 2024; 12:1485. [PMID: 39065252 PMCID: PMC11279301 DOI: 10.3390/microorganisms12071485] [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: 06/30/2024] [Revised: 07/09/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Staphylococcus argenteus, identified in 2006, represents a challenging case of bacterial taxonomic identification because of its high similarity to Staphylococcus aureus. In this context, neither mass spectrometry (MS) nor 16S gene analysis cannot precisely reveal the difference between the two species. In our study, the sensitivity to antibiotics of S. argenteus isolated from blood culture was tested, and the investigation of the bacterial genome was performed by Multi-Locus Sequence Typing (MLST) and Whole-Genome Next-Generation Sequencing (WG-NGS). The pathogen was identified as ST2250 and presented perfectly matched resistance genes, namely aph(3')-III, mgrA, and sepA, whereas the virulence gene detected was scn. Two plasmids were found: the pSAS plasmid, belonging to the family of Inc18, and plasmid pN315, belonging to the Rep3 group. The epidemiological distribution and the spread of S. argenteus infection are scarcely documented, particularly when associated with sepsis. Therefore, a correct taxonomy identification, antibiogram, and resistance gene analysis may help in acquiring knowledge about this bacterium and implement its detection and treatment.
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Affiliation(s)
- Giulia Gatti
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
| | - Francesca Taddei
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
| | - Anna Marzucco
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
| | - Maria Sofia Montanari
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
| | - Giorgio Dirani
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
| | - Silvia Zannoli
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
| | - Laura Grumiro
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
| | - Martina Brandolini
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
| | - Claudia Colosimo
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
| | - Laura Dionisi
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
| | - Ludovica Ingletto
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
| | - Alessandra Mistral De Pascali
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
| | - Alessandra Scagliarini
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
| | - Vittorio Sambri
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
| | - Monica Cricca
- Department of Medical and Surgical Sciences—DIMEC, Alma Mater Studiorum, University of Bologna, 40138 Bologna, Italy; (M.B.); (C.C.); (L.D.); (L.I.); (A.M.D.P.); (A.S.); (V.S.); (M.C.)
- Unit of Microbiology, The Great Romagna Hub Laboratory, 47522 Cesena, Italy; (F.T.); (A.M.); (M.S.M.); (G.D.); (S.Z.); (L.G.)
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Wakabayashi Y, Kumeda Y, Yoshihara S, Tokumoto H, Kawatsu K, Miyake M. Prevalence of Staphylococcus argenteus among food handlers, kitchen utensils, and food samples in Japan. Lett Appl Microbiol 2024; 77:ovae031. [PMID: 38544318 DOI: 10.1093/lambio/ovae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/01/2024] [Accepted: 03/26/2024] [Indexed: 04/17/2024]
Abstract
Staphylococcus argenteus has received increased attention from an aspect of food safety since several food poisoning outbreaks caused by the bacterium were reported in Japan. However, S. argenteus prevalence among food handlers and utensils has not yet been investigated. In this study, we investigated S. argenteus prevalence among a collection of coagulase-positive staphylococci (CPS) that were isolated during food sanitary inspections in Japan. Out of a total of 191 CPS isolates, 14 were identified as S. argenteus. One was isolated from shelled shrimp, nine were isolated from food handlers' hand swabs, and four were isolated from kitchen utensils. Whole-genome sequencing revealed that transmission of S. argenteus from human hands to utensils was possible. Though all 14 isolates were negative for the pvl and tst-1 genes, 6 harbored the seb gene. Only 21.4% of S. argenteus isolates were resistant to antibiotics, while 62.1% of the S. aureus isolates from the same sources were confirmed to be resistant. To the best of our knowledge, this is the first report to demonstrate possible transmission of S. argenteus from food handlers to utensils in food-processing environments.
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Affiliation(s)
- Yuki Wakabayashi
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, 1-3-3 Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan
- Graduate School of Veterinary Science, Department of Veterinary Science, Osaka Metropolitan University, 1-58 Rinku Ourai Kita, Izumisano, Osaka, 598-0048, Japan
| | - Yuko Kumeda
- Research Center of Microorganism Control, Organization for Research Promotion, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-kyu, Sakai, Osaka, 599-8231, Japan
| | - Shizue Yoshihara
- Graduate School of Science, Department of Biology, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8231, Japan
| | - Hayato Tokumoto
- Graduate School of Science, Department of Biology, Osaka Metropolitan University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8231, Japan
| | - Kentaro Kawatsu
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, 1-3-3 Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan
| | - Masami Miyake
- Graduate School of Veterinary Science, Department of Veterinary Science, Osaka Metropolitan University, 1-58 Rinku Ourai Kita, Izumisano, Osaka, 598-0048, Japan
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Aung MS, Urushibara N, Kawaguchiya M, Ohashi N, Hirose M, Kimura Y, Kudo K, Ito M, Kobayashi N. Molecular Epidemiological Characterization of Methicillin-Resistant Staphylococcus aureus from Bloodstream Infections in Northern Japan: Increasing Trend of CC1 and Identification of ST8-SCC mec IVa USA300-Like Isolate Lacking Arginine Catabolic Mobile Element. Microb Drug Resist 2024; 30:63-72. [PMID: 38100132 DOI: 10.1089/mdr.2023.0203] [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: 02/06/2024] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is a major infectious disease pathogen, and its molecular epidemiological profile has been changing. In this study, a total of 279 MRSA isolates were collected from patients with bloodstream infection (BSI) in Hokkaido, northern main island of Japan, for a 2-year period from August 2019 to July 2021. CC5 (ST5/ST764)-MRSA-IIa (SCCmec-IIa) (47%, n = 132) and CC1 (ST1/ST2725/ST2764)-MRSA-IVa (42%, n = 116) were found to be major lineages, with CC8-MRSA-IVa being lower prevalence (5%, n = 13). CC1-MRSA-IVa showed a relatively increased proportion compared with our previous study (22%, 2017-2019). Seven isolates with SCCmec IVa (2.5%) were positive for Panton-Valentine leukocidin genes on ΦSa2usa and belonged to ST8/spa-t008/agr-I/coa-IIIa, showing genetic features of the USA300 clone. Among these isolates, six isolates harbored arginine catabolic mobile element (ACME) type I typical to the USA300 clone, while it was not detected in an isolate (strain R3-8). Whole genomic analysis of strain R3-8 revealed that its chromosome was highly similar to the USA300 strain TCH1516, but lacked ACME, carrying a plasmid genetically close to that of USA300 strains. The present study revealed increasing trend of CC1-MRSA-IV and occurrence of a novel variant of the USA300 clone among MRSA from BSI in northern Japan.
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Affiliation(s)
- Meiji Soe Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Noriko Urushibara
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Mitsuyo Kawaguchiya
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Nobuhide Ohashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Mina Hirose
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido, Japan
| | - Yuuki Kimura
- Sapporo Clinical Laboratory, Incorporated, Hokkaido, Sapporo, Japan
| | - Kenji Kudo
- Sapporo Clinical Laboratory, Incorporated, Hokkaido, Sapporo, Japan
| | - Masahiko Ito
- Sapporo Clinical Laboratory, Incorporated, Hokkaido, Sapporo, Japan
| | - Nobumichi Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo, Japan
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5
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Rong D, Liu Z, Huang J, Zhang F, Wu Q, Dai J, Li Y, Zhao M, Li Q, Zhang J, Wu S. Prevalence and characterization of Staphylococcus aureus and Staphylococcus argenteus isolated from rice and flour products in Guangdong, China. Int J Food Microbiol 2023; 406:110348. [PMID: 37573713 DOI: 10.1016/j.ijfoodmicro.2023.110348] [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: 03/29/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/15/2023]
Abstract
Staphylococcus aureus and Staphylococcus argenteus have been implicated in food poisoning outbreaks, and have been found in various types of food products according to our previous study. Rice and flour products are popular and widely consumed around the world. However, limited data are available on the microbial safety of S. aureus in rice and flour products, and S. argenteus has never been reported. Thus, this study aimed to investigate the contamination of S. aureus and S. argenteus in 250 fresh rice and flour product samples from five cities in Guangdong, China. According to qualitative and quantitative analyses, 68 (27.2 %) and 11 (4.4 %) samples were positive for S. aureus and S. argenteus, including 9 samples that exceeded 100 MPN/g. For antibiotics susceptibility tests in 16 antibiotics, the S. aureus isolates exhibited higher rates of resistance and multidrug resistance than S. argenteus. The S. aureus and S. argenteus isolates were mainly resistant to penicillin (70.21 %; 79.17 %), tetracycline (20.21 %; 58.33 %) and azithromycin (19.68 %, 8.33 %). However, the other antibiotic resistance rates were <10 %. Furthermore, the genetic background of the isolates was analyzed by whole-genome sequencing (WGS). As a result, the S. aureus isolates were divided into 18 known sequence types (STs) and 4 novel STs (ST7675, ST7679, ST7680 and ST7682), which mainly belonged to ST188 (20.6 %) and ST6 (14.7 %). The S. argenteus isolates mainly belonged to ST2250 (90.9 %), with a novel type (ST7683). In total, 36 and 16 antibiotic resistance genes (ARGs) were found in S. aureus and S. argenteus isolates, respectively. In addition, 91 virulence genes (VFs) were detected in S. aureus isolates as well as 90 % of core VFs were similar to S. argenteus. More than 20 % of the S. aureus isolates carried the classic enterotoxin gene (sea-sec), but chp, cna and map were free in all S. argenteus isolates. Importantly, 33.8 % of S. aureus isolates belonged to the immune evasion cluster (IEC) type B, whereas most of S. argenteus isolates (90.9 %) belong to IEC type E. According to the phylogenetic analysis, the S. aureus and S. argenteus isolates in fresh rice and flour products may indicate loss or acquisition of ARGs and VFs to survive and adapt to the environment. Our study confirmed the presence of S. argenteus in rice and flour products at first and focused on the multi-dimensional systematic comparative analysis of S. aureus and S. argenteus to reveal their ubiquity and similarities or differences, and provide more accurate and effective basic information for follow-up monitoring and tracking.
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Affiliation(s)
- Dongli Rong
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Zhenjie Liu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Jiahui Huang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Feng Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Jingsha Dai
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Yuanyu Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Miao Zhao
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Qi Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China
| | - Shi Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Key Laboratory of Agricultural Microbiomics and Precision Application, Ministry of Agriculture and Rural Affairs, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, PR China.
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Chen JHK, Leung HY, Wong CMC, Yuen KY, Cheng VCC. Prevalence and Characteristics of Invasive Staphylococcus argenteus among Patients with Bacteremia in Hong Kong. Microorganisms 2023; 11:2435. [PMID: 37894094 PMCID: PMC10609611 DOI: 10.3390/microorganisms11102435] [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: 09/15/2023] [Revised: 09/25/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
Staphylococcus argenteus is a novel Staphylococcus species derived from Staphylococcus aureus. Information on the prevalence and genetic characteristics of invasive S. argenteus in Asia is limited. In this study, 275 invasive S. aureus complex strains were retrieved from blood culture specimens in Hong Kong and re-analyzed using MALDI-TOF mass spectrometry and an in-house multiplex real-time PCR for S. argenteus. The prevalence of invasive S. argenteus in Hong Kong was found to be 4.0% (11/275). These strains were primarily susceptible to commonly used antibiotics, except penicillin. Whole-genome sequencing revealed the circulation of three S. argenteus genotypes (ST-2250, ST-1223, and ST-2854) in Hong Kong, with ST-2250 and ST-1223 being the predominant genotypes. The local ST-2250 and ST-1223 strains showed close phylogenetic relationships with isolates from mainland China. Antimicrobial-resistant genes (fosB, tet-38, mepA, blaI, blaZ) could be found in nearly all local S. argenteus strains. The ST-1223 and ST-2250 genotypes carried multiple staphylococcal enterotoxin genes that could cause food poisoning and toxic shock syndrome. The CRISPR/Cas locus was observed only in the ST-2250 strains. This study provides the first report on the molecular epidemiology of invasive S. argenteus in Hong Kong, and further analysis is needed to understand its transmission reservoir.
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Affiliation(s)
- Jonathan H. K. Chen
- Department of Microbiology, Queen Mary Hospital, Hong Kong SAR, China; (H.-Y.L.); (V.C.C.C.)
- Department of Microbiology, School of Clinical Medicine, The University of Hong Kong, Hong Kong SAR, China; (C.M.C.W.); (K.-Y.Y.)
| | - Hoi-Yi Leung
- Department of Microbiology, Queen Mary Hospital, Hong Kong SAR, China; (H.-Y.L.); (V.C.C.C.)
| | - Charles M. C. Wong
- Department of Microbiology, School of Clinical Medicine, The University of Hong Kong, Hong Kong SAR, China; (C.M.C.W.); (K.-Y.Y.)
| | - Kwok-Yung Yuen
- Department of Microbiology, School of Clinical Medicine, The University of Hong Kong, Hong Kong SAR, China; (C.M.C.W.); (K.-Y.Y.)
| | - Vincent C. C. Cheng
- Department of Microbiology, Queen Mary Hospital, Hong Kong SAR, China; (H.-Y.L.); (V.C.C.C.)
- Infection Control Team, Queen Mary Hospital, Hong Kong West Cluster, Hong Kong SAR, China
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Aung MS, Urushibara N, Kawaguchiya M, Ohashi N, Hirose M, Kudo K, Tsukamoto N, Ito M, Kobayashi N. Antimicrobial Resistance, Virulence Factors, and Genotypes of Enterococcus faecalis and Enterococcus faecium Clinical Isolates in Northern Japan: Identification of optrA in ST480 E. faecalis. Antibiotics (Basel) 2023; 12:antibiotics12010108. [PMID: 36671309 PMCID: PMC9855154 DOI: 10.3390/antibiotics12010108] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/10/2023] Open
Abstract
Enterococcus faecalis and E. faecium are the major pathogens causing community- and healthcare-associated infections, with an ability to acquire resistance to multiple antimicrobials. The present study was conducted to determine the prevalence of virulence factors, drug resistance and its genetic determinants, and clonal lineages of E. faecalis and E. faecium clinical isolates in northern Japan. A total of 480 (426 E. faecalis and 54 E. faecium) isolates collected over a four-month period were analyzed. Three virulence factors promoting bacterial colonization (asa1, efaA, and ace) were more prevalent among E. faecalis (46-59%) than E. faecium, while a similar prevalence of enterococcal surface protein gene (esp) was found in these species. Between E. faecalis and E. faecium, an evident difference was noted for resistance to erythromycin, gentamicin, and levofloxacin and its responsible resistance determinants. Oxazolidinone resistance gene optrA and phenicol exporter gene fexA were identified in an isolate of E. faecalis belonging to ST480 and revealed to be located on a cluster similar to those of isolates reported in other Asian countries. The E. faecalis isolates analyzed were differentiated into 12 STs, among which ST179 and ST16 of clonal complex (CC) 16 were the major lineage. Nearly all the E. faecium isolates were assigned into CC17, which consisted of 10 different sequence types (STs), including a dominant ST17 containing multidrug resistant isolates and ST78 with isolates harboring the hyaluronidase gene (hyl). The present study revealed the genetic profiles of E. faecalis and E. faecium clinical isolates, with the first identification of optrA in ST480 E. faecalis in Japan.
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Affiliation(s)
- Meiji Soe Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
- Correspondence: ; Tel.: +81-11-611-2111
| | - Noriko Urushibara
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Mitsuyo Kawaguchiya
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Nobuhide Ohashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Mina Hirose
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan
| | - Kenji Kudo
- Sapporo Mirai Laboratory, Co., Ltd., Sapporo 060-0003, Japan
| | | | - Masahiko Ito
- Sapporo Mirai Laboratory, Co., Ltd., Sapporo 060-0003, Japan
| | - Nobumichi Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
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Shittu AO, Layer-Nicolaou F, Strommenger B, Nguyen MT, Bletz S, Mellmann A, Schaumburg F. First Report of a Methicillin-Resistant, High-Level Mupirocin-Resistant Staphylococcus argenteus. Front Cell Infect Microbiol 2022; 12:860163. [PMID: 35372120 PMCID: PMC8964999 DOI: 10.3389/fcimb.2022.860163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 02/09/2022] [Indexed: 11/30/2022] Open
Abstract
We describe the identification of a methicillin-resistant, high-level mupirocin-resistant Staphylococcus argenteus. The isolate (1801221) was characterized as t6675-ST2250-SCCmecIVc, and whole-genome sequencing revealed that the isolate possessed two plasmids. One plasmid (34,870 bp), designated p1_1801221 with rep23, harboured the mupirocin resistance (mupA) gene. The second plasmid (20,644 bp), assigned as p2_1801221 with rep5a and rep16, carried the resistance determinants for penicillin (blaZ) and cadmium (cadD). Phylogenetic analysis revealed that the isolate clustered with the European ST2250 lineage. The overall high similarity of both plasmids in S. argenteus with published DNA sequences of Staphylococcus aureus plasmids strongly suggests an interspecies transfer. The pathogenic potential, community and nosocomial spread, and acquisition of antibiotic resistance gene determinants, including the mupA gene by S. argenteus, highlight its clinical significance and the need for its correct identification.
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Affiliation(s)
- Adebayo Osagie Shittu
- Department of Microbiology, Obafemi Awolowo University, Ile-Ife, Nigeria
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany
- *Correspondence: Adebayo Osagie Shittu,
| | - Franziska Layer-Nicolaou
- National Reference Centre (NRC) for Staphylococci and Enterococci, Division of Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, Wernigerode Branch, Wernigerode, Germany
| | - Birgit Strommenger
- National Reference Centre (NRC) for Staphylococci and Enterococci, Division of Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, Wernigerode Branch, Wernigerode, Germany
| | - Minh-Thu Nguyen
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany
| | - Stefan Bletz
- Institute for Hygiene, University Hospital Münster, Münster, Germany
| | | | - Frieder Schaumburg
- Institute of Medical Microbiology, University Hospital Münster, Münster, Germany
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Wakabayashi Y, Takemoto K, Iwasaki S, Yajima T, Kido A, Yamauchi A, Kuroiwa K, Kumai Y, Yoshihara S, Tokumoto H, Kawatsu K, Yasugi M, Miyake M. Isolation and characterization of Staphylococcus argenteus strains from retail foods and slaughterhouses in Japan. Int J Food Microbiol 2021; 363:109503. [PMID: 34968888 DOI: 10.1016/j.ijfoodmicro.2021.109503] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 12/05/2021] [Accepted: 12/11/2021] [Indexed: 11/20/2022]
Abstract
Staphylococcus argenteus has been recently established as a novel species of Staphylococcus aureus complex. It is known to cause various human diseases, such as skin and soft-tissue infections, sepsis, and staphylococcal food poisoning, although the source of infection has not been clearly described. In food poisoning cases, the source of bacterial contamination in food is unknown. This study examined the prevalence of S. argenteus among retail fresh food and poultry slaughterhouses in Japan. Among 642 food samples examined, successful isolation of S. argenteus was achieved in 21 of 151 (13.9%) chicken samples. No isolations from pork, beef, fish, or vegetables in retail markets were confirmed. Multiple-locus sequence typing revealed that the 21 isolates were classified into four sequence types (ST) that were divided into 14 subtypes using spa-typing. All food isolates were susceptible to methicillin and did not show positivity for the Panton-Valentine leukocidin gene. When bacteria were isolated from two poultry slaughterhouses in the same region, 14 S. argenteus strains were successfully isolated from only one slaughterhouse. Thirteen of 14 strains were isolated from a poultry carcass and slaughterhouse environments during a certain sampling period and were all classified as ST5961 with identical spa-type. Also, the number of single nucleotide variants (SNVs) detected on the core genomes of the same 13 strains were between 0 and 17, suggesting a long-term inhabitation of an S. argenteus strain inside the facility. Furthermore, one isolate from chicken meat was also genetically linked with the same lineage of slaughterhouse isolates, with ≤15 SNVs being detected. Additionally, one slaughterhouse isolate from chiller water and three chicken isolates were classified into the same cluster by phylogenetic analysis, although the number of pairwise SNVs ranged from 62 to 128. To the best of the authors' knowledge, this is the first study that demonstrated S. argenteus in a food processing facility and the possible bacterial contamination on food during food processing.
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Affiliation(s)
- Yuki Wakabayashi
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, 1-3-69 Nakamichi, Higashinari-ku, Osaka, Japan; Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano, Osaka, Japan
| | - Kohei Takemoto
- Osaka Prefectural Government Poultry Inspection Center, 2-11-13 Sangenyahigashi, Taisyo-ku, Osaka, Japan
| | - Satomi Iwasaki
- Osaka Prefectural Government Poultry Inspection Center, 2-11-13 Sangenyahigashi, Taisyo-ku, Osaka, Japan
| | - Tomoya Yajima
- Osaka Prefectural Government Poultry Inspection Center, 2-11-13 Sangenyahigashi, Taisyo-ku, Osaka, Japan
| | - Akiko Kido
- Osaka Prefectural Government Poultry Inspection Center, 2-11-13 Sangenyahigashi, Taisyo-ku, Osaka, Japan
| | - Akiko Yamauchi
- Osaka Prefectural Government Poultry Inspection Center, 2-11-13 Sangenyahigashi, Taisyo-ku, Osaka, Japan
| | - Kyoko Kuroiwa
- Osaka Prefectural Government Poultry Inspection Center, 2-11-13 Sangenyahigashi, Taisyo-ku, Osaka, Japan
| | - Yuko Kumai
- Osaka Prefectural Government Poultry Inspection Center, 2-11-13 Sangenyahigashi, Taisyo-ku, Osaka, Japan
| | - Shizue Yoshihara
- Department of Biological Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, Japan
| | - Hayato Tokumoto
- Department of Biological Sciences, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, Japan
| | - Kentaro Kawatsu
- Bacteriology Section, Division of Microbiology, Osaka Institute of Public Health, 1-3-69 Nakamichi, Higashinari-ku, Osaka, Japan
| | - Mayo Yasugi
- Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano, Osaka, Japan
| | - Masami Miyake
- Department of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano, Osaka, Japan.
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10
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Goswami C, Fox S, Holden M, Leanord A, Evans TJ. Genomic Analysis of Global Staphylococcus argenteus Strains Reveals Distinct Lineages With Differing Virulence and Antibiotic Resistance Gene Content. Front Microbiol 2021; 12:795173. [PMID: 34925305 PMCID: PMC8677677 DOI: 10.3389/fmicb.2021.795173] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/05/2021] [Indexed: 11/13/2022] Open
Abstract
Infections due to Staphylococcus argenteus have been increasingly reported worldwide and the microbe cannot be distinguished from Staphylococcus aureus by standard methods. Its complement of virulence determinants and antibiotic resistance genes remain unclear, and how far these are distinct from those produced by S. aureus remains undetermined. In order to address these uncertainties, we have collected 132 publicly available sequences from fourteen different countries, including the United Kingdom, between 2005 and 2018 to study the global genetic structure of the population. We have compared the genomes for antibiotic resistance genes, virulence determinants and mobile genetic elements such as phages, pathogenicity islands and presence of plasmid groups between different clades. 20% (n = 26) isolates were methicillin resistant harboring a mecA gene and 88% were penicillin resistant, harboring the blaZ gene. ST2250 was identified as the most frequent strain, but ST1223, which was the second largest group, contained a marginally larger number of virulence genes compared to the other STs. Novel S. argenteus pathogenicity islands were identified in our isolates harboring tsst-1, seb, sec3, ear, selk, selq toxin genes, as well as chromosomal clusters of enterotoxin and superantigen-like genes. Strain-specific type I modification systems were widespread which would limit interstrain transfer of genetic material. In addition, ST2250 possessed a CRISPR/Cas system, lacking in most other STs. S. argenteus possesses important genetic differences from S. aureus, as well as between different STs, with the potential to produce distinct clinical manifestations.
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Affiliation(s)
- Cosmika Goswami
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Stephen Fox
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Matthew Holden
- School of Medicine, University of St Andrews, St Andrews, United Kingdom
| | - Alistair Leanord
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
- Scottish Microbiology Reference Laboratories, Glasgow, United Kingdom
| | - Thomas J. Evans
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
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Hirose M, Aung MS, Fukuda A, Yahata S, Fujita Y, Saitoh M, Hirose Y, Urushibara N, Kobayashi N. Antimicrobial Resistance and Molecular Epidemiological Characteristics of Methicillin-Resistant and Susceptible Staphylococcal Isolates from Oral Cavity of Dental Patients and Staff in Northern Japan. Antibiotics (Basel) 2021; 10:antibiotics10111316. [PMID: 34827254 PMCID: PMC8615198 DOI: 10.3390/antibiotics10111316] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
The acquisition of drug resistance and virulence by staphylococcal species colonizing humans is a growing public health concern. The present study was conducted to investigate the prevalence, antimicrobial resistance and genetic characteristics of Staphylococcus isolates from the oral cavity and skin (hand) of systemically healthy subjects with dental disease and dental staff in northern Japan. Among a total of 133 subjects (91 patients and 42 staff), 87 coagulase-positive Staphylococcus (83 S. aureus/4 S. argenteus) and 162 coagulase-negative Staphylococcus (CoNS) isolates were recovered from 59 (44.4%) and 95 (71.4%) subjects, respectively. Three oral isolates were methicillin-resistant S. aureus (MRSA) (3.6%, 3/83) that were genotyped as ST8-SCCmec-IVl, ST4775(CC1)-SCCmec-IVa and ST6562(CC8)-SCCmec-IVa. Remarkably, the ST6562 isolate harbored PVL genes on ΦSa2usa and type I ACME (arginine catabolic mobile element). Four methicillin-susceptible isolates were identified as S. argenteus belonging to ST1223 and ST2250, which harbored enterotoxin genes egc-2 and sey, respectively. Among the fourteen CoNS species identified, methicillin-resistant (MR) isolates were detected in five species (11 isolates, 13.3% of CoNS), with S. saprophyticus and S. haemolyticus being the most common. ACME was prevalent in only S. epidermidis and S. capitis. These findings indicated the potential distribution of USA300 clone-like MRSA, toxigenic S. argenteus and MR-CoNS in the oral cavity of dental patients.
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Affiliation(s)
- Mina Hirose
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan; (M.H.); (A.F.); (S.Y.); (Y.F.); (M.S.)
| | - Meiji Soe Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (N.U.); (N.K.)
- Correspondence: ; Tel.: +81-11-611-2111
| | - Atsushi Fukuda
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan; (M.H.); (A.F.); (S.Y.); (Y.F.); (M.S.)
| | - Shoko Yahata
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan; (M.H.); (A.F.); (S.Y.); (Y.F.); (M.S.)
| | - Yusuke Fujita
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan; (M.H.); (A.F.); (S.Y.); (Y.F.); (M.S.)
| | - Masato Saitoh
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan; (M.H.); (A.F.); (S.Y.); (Y.F.); (M.S.)
| | - Yukito Hirose
- Division of Fixed Prosthodontics and Oral Implantology, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu 061-0293, Japan;
| | - Noriko Urushibara
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (N.U.); (N.K.)
| | - Nobumichi Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (N.U.); (N.K.)
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