1
|
Yartasi E, Durmaz R, Ari O, Mumcuoglu I, Dinc B. Molecular characterization of the multi-drug resistant Myroides odoratimimus isolates: a whole genome sequence-based study to confirm carbapenem resistance. Int Microbiol 2024; 27:1169-1180. [PMID: 38127105 DOI: 10.1007/s10123-023-00472-9] [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: 10/07/2023] [Revised: 12/08/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
The bacteria belonging to the Myroides genus are opportunistic pathogens causing community or hospital-acquired infections that result in treatment failure due to antibiotic resistance. This study aimed to investigate molecular mechanisms of antibiotic resistance, clonal relatedness, and the biofilm forming capacity of the 51 multi-drug resistant Myroides odoratimimus. All isolates were screened for blaKPC, blaOXA, blaVIM, blaIMP, blaMUS, blaTUS, blaNDM, and blaB genes by using PCR amplification. Whole genome sequencing (WGS) was applied on three randomly selected isolates for further investigation of antibiotic resistance mechanisms. Clonal relatedness was analyzed by Pulsed-field gel electrophoresis (PFGE) and the microtiter plate method was used to demonstrate biofilm formation. All isolates were positive for biofilm formation. PCR analysis resulted in a positive for only the blaMUS-1 gene. WGS identified blaMUS-1, erm(F), ere(D), tet(X), and sul2 genes in all strains tested. Moreover, the genomic analyses of three strains revealed that genomes contained a large number of virulence factors (VFs). PFGE yielded a clustering rate of 96%. High clonal relatedness, biofilm formation, and multi-drug resistance properties may lead to the predominance of these opportunistic pathogens in hospital environments and make them cause nosocomial infections.
Collapse
Affiliation(s)
- Esra Yartasi
- Department of Clinical Microbiology, Ankara Bilkent City Hospital, University of Health Sciences, Ankara, Turkey
| | - Rıza Durmaz
- Department of Clinical Microbiology, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara, Turkey.
| | - Oguz Ari
- Central Research and Application Center, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Ipek Mumcuoglu
- Department of Clinical Microbiology, Ankara Bilkent City Hospital, University of Health Sciences, Ankara, Turkey
| | - Bedia Dinc
- Department of Clinical Microbiology, Ankara Bilkent City Hospital, University of Health Sciences, Ankara, Turkey
| |
Collapse
|
2
|
Malepati N, Mitra S, Chandran K, Shanbhag SS. Secondary bacterial corneal infection caused by Myroides species in primary fungal keratitis. BMJ Case Rep 2024; 17:e258474. [PMID: 38719269 PMCID: PMC11085784 DOI: 10.1136/bcr-2023-258474] [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: 05/13/2024] Open
Abstract
A middle-aged male patient presented with a central corneal perforation in a deep stromal infiltrate in his left eye. An emergency therapeutic penetrating keratoplasty was performed. Microbiological evaluation of the corneal scraping specimen revealed septate fungal filaments on stains. However, culture reports after 24 hours from the scraping sample and the excised half corneal button showed growth of gram-negative bacilli. This pathogen was identified as an aerobic, non-fermentative, gram-negative, bacillus by conventional microbiology and confirmed as Myroides species by the VITEK 2 Compact system (bioMérieux, Marcy l'Etoile, France). Susceptibility to chloramphenicol was noted based on which the patient was treated with topical chloramphenicol 0.5%. No recurrence of the infection was noted. This is the first reported case of corneal infection with the Myroides species of bacteria which, heretofore, have been known to cause endocarditis and urinary tract infections.
Collapse
Affiliation(s)
- Nikhila Malepati
- Shantilal Shanghvi Cornea Institute, LV Prasad Eye Institute, Hyderabad, Telangana, India
| | - Sanchita Mitra
- Jhaveri Microbiology Center, LV Prasad Eye Institute, Hyderabad, Telangana, India
| | - Kavya Chandran
- Shantilal Shanghvi Cornea Institute, LV Prasad Eye Institute, Hyderabad, Telangana, India
| | - Swapna S Shanbhag
- Shantilal Shanghvi Cornea Institute, LV Prasad Eye Institute, Hyderabad, Telangana, India
| |
Collapse
|
3
|
Sahu C, Chaudhary R, Bhartiya C, Patel SS, Bhatnagar N. A Retrospective Study on UTI by Myroides Species: An Emerging Drug Resistant Nosocomial Pathogen. Indian J Crit Care Med 2024; 28:399-403. [PMID: 38585315 PMCID: PMC10998527 DOI: 10.5005/jp-journals-10071-24683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 03/03/2024] [Indexed: 04/09/2024] Open
Abstract
Aim and background Myroides (M.) species are ubiquitous in the environment and cause a variety of infections like urinary tract infections (UTI), sepsis, meningitis, cholecystitis, pneumonia, and soft tissue infections, especially among immunocompromised populations. These are usually resistant to multiple antibiotics. This study aimed to demonstrate the clinical profile, underlying comorbidities, and antimicrobial susceptibility of Myroides isolates obtained from nosocomial UTI cases. Materials and methods A sudden rise in the isolation of Myroides spp. from the repeated urine samples of admitted patients alerted us to conduct this retrospective observational study. Urine cultures that grew M. species were included in this study. Antibiotic susceptibility was performed and the patient's clinical data was analyzed. Results A total of 14 Myroides spp. isolates were obtained from urine culture. The maximum number of cases (71.4%) were from the Nephrology ward and ICUs. The average (mean) age of patients was 46 years (range 2-80 years). All patients were catheterized. All isolates were multidrug resistant. Minocycline and doxycycline were the only drugs found effective in this study. Conclusions Myroides species are emerging rare pathogens that can cause UTI in immunocompromised and catheterized patients. Minocycline may be used for treating such infections. How to cite this article Sahu C, Chaudhary R, Bhartiya C, Patel SS, Bhatnagar N. A Retrospective Study on UTI by Myroides Species: An Emerging Drug Resistant Nosocomial Pathogen. Indian J Crit Care Med 2024;28(4):399-403.
Collapse
Affiliation(s)
- Chinmoy Sahu
- Department of Microbiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Radhika Chaudhary
- Department of Microbiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Chitra Bhartiya
- Department of Microbiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Sangram S Patel
- Department of Microbiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nidhi Bhatnagar
- Department of Microbiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| |
Collapse
|
4
|
Oyardi O, Eltimur T, Demir ES, Alkan B, Savage PB, Akcali A, Bozkurt-Guzel C. Antibacterial and Antibiofilm Activities of Ceragenins Alone and in Combination with Levofloxacin Against Multidrug Resistant Myroides spp. Clinical Isolates from Patients with Urinary Tract Infections. Curr Microbiol 2023; 80:210. [PMID: 37191731 DOI: 10.1007/s00284-023-03321-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/02/2023] [Indexed: 05/17/2023]
Abstract
Myroides spp. are rare opportunistic pathogens, but they can be life-threatening because of their multidrug-resistant drug properties and their potential to cause outbreaks, especially in immunosuppressed patients. In this study, 33 isolates isolated from intensive care patients with urinary tract infections were examined for drug susceptibility. All isolates except three proved to be resistant to the tested conventional antibiotics. The effects of ceragenins, a class of compounds developed to mimic endogenous antimicrobial peptides, were evaluated against these organisms. The MIC values of nine ceragenins were determined, and the most effective ceragenins were CSA-131 and CSA-138. Three isolates that were susceptible to levofloxacin and two isolates resistant to all antibiotics underwent 16 s rDNA analysis, and whereas resistant isolates were identified as M. odoratus, susceptible isolates were identified as M. odoratimimus. CSA-131 and CSA-138 showed rapid antimicrobial effects observed in time-kill analyses. Combinations of ceragenins and levofloxacin caused a significant increase in antimicrobial and antibiofilm activities against M. odoratimimus isolates. In this study, Myroides spp. were found to be multidrug-resistant and have biofilm forming capacity, and ceragenins CSA-131 and CSA-138 were found to be especially effective on both planktonic and biofilm forms of Myroides spp.
Collapse
Affiliation(s)
- Ozlem Oyardi
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Gazi University, 06330, Ankara, Turkey.
| | - Tuba Eltimur
- Department of Medical Microbiology, Faculty of Medicine, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey
| | - Elif Sena Demir
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, 34116, Istanbul, Turkey
| | - Busra Alkan
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, 34116, Istanbul, Turkey
| | - Paul B Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA
| | - Alper Akcali
- Department of Medical Microbiology, Faculty of Medicine, Canakkale Onsekiz Mart University, Terzioglu Campus, 17100, Canakkale, Turkey
| | - Cagla Bozkurt-Guzel
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, 34116, Istanbul, Turkey
| |
Collapse
|
5
|
Khan U, Pandey E, Gandham N, Das N, Mukhida S, Kannuri S, Bhaumik S, Mirza S. A case series and literature review of infections due to Myroides spp.: identification of contributing factors and emerging antibiotic susceptibility trends. Access Microbiol 2023; 5:acmi000549.v2. [PMID: 37323940 PMCID: PMC10267660 DOI: 10.1099/acmi.0.000549.v2] [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: 12/20/2022] [Accepted: 03/09/2023] [Indexed: 06/17/2023] Open
Abstract
Introduction Infections forby Myroides spp. can lead to significant morbidity and mortality, particularly in immunocompromised patients with underlying co-morbidities. Recent reports have highlighted its intrinsic and acquired drug resistance, making it a particularly challenging infectious agent to combat. Methods Myroides spp. isolated and reported in clinically significant urine samples were considered for the study. Identification of the organism was done via the VITEK 2C system. Antibiotic susceptibility testing was done using both manual and automated methods following Clinical and Laboratory Standards Institute (CLSI) guidelines. Existing literature was searched on MEDLINE using PubMed. Results We present a series of five catheter-associated urinary tract infections due to Myroides odoratimimus , with sensitivity to only minocycline. This is the first case from Western India, and the third case in the existing literature that shows Myroides sensitivity only to minocycline. Our literature review is the first to systematically describe contributory factors to infection, allowing us to devise a clinically relevant tool that delineates contributory factors and efficacious drugs in Myroides spp. infection. Conclusion Myroides spp. infections, previously considered rare and opportunistic, need cognizance and diagnostic suspicion especially in particular associated conditions.
Collapse
Affiliation(s)
- Uzair Khan
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| | - Ellora Pandey
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| | - Nageswari Gandham
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| | - Nikunja Das
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| | - Sahjid Mukhida
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| | - Sriram Kannuri
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| | - Shalini Bhaumik
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| | - Shahzad Mirza
- Department of Microbiology, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D.Y. Patil Vidyapeeth, Pune, India
| |
Collapse
|
6
|
Gülmez A, Ceylan AN, Özalp O. An Increasing Threat in Intensive Care Units, Evaluation of Multi-Drug-Resistant Myroides spp. Infections and Risk Factors. J Hosp Infect 2023:S0195-6701(23)00123-8. [PMID: 37094716 DOI: 10.1016/j.jhin.2023.04.010] [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: 02/09/2023] [Revised: 03/24/2023] [Accepted: 04/12/2023] [Indexed: 04/26/2023]
Abstract
BACKGROUND Myroides species are gram-negative bacilli that are commonly found in soil and water, acting as low-level opportunistic pathogens and causing a variety of infections. AIM The purpose of this study is to assess the risk factors for multidrug-resistant Myroides infections, their association with comorbid illnesses, patient care, and their susceptibility to antibiotics. METHODS This retrospective analytical study was conducted in Istanbul Başakşehir Çam and Sakura City Hospital by including patients with Myroides spp isolation in their culture samples. The total hospitalization days, first isolation days, and 30-day mortality values of the patients were analysed statistically, and the significance level was accepted as p < 0.05. RESULTS Myroides spp. were isolated from 228 patients' 437 culture samples. Of these cases, 210 (92.1%) were classified as having asymptomatic bacteriuria, and 18 (7.9%) as having an infection caused by Myroides spp. 174 (76.3%) of these patients were followed up in the intensive care unit, and the total hospitalization days (median = 24.50) and the first isolation day (median = 9.50) of infected patients were shorter than colonized patients (p = 0.023, p = 0.030), no difference was found between 30-day mortality (p = 0.312). CONCLUSIONS It was observed that Myroides infections could be seen more frequently in patients who were hospitalized for a long time, used broad-spectrum antimicrobials, had invasive procedures, and had co-factors such as diabetes and cerebrovascular disease. In addition, it was observed that the resistance rates of M. odoratus strains were higher than M. odoratimimus strains and the use of quinolone antimicrobials in the treatment of patients with M. odoratimimus infection provided more cure.
Collapse
Affiliation(s)
- Abdurrahman Gülmez
- Istanbul Basaksehir Cam and Sakura City Hospital, Medical Microbiology Laboratory, Istanbul, Turkey.
| | - Ayse Nur Ceylan
- Istanbul Basaksehir Cam and Sakura City Hospital, Medical Microbiology Laboratory, Istanbul, Turkey.
| | - Onur Özalp
- Istanbul Basaksehir Cam and Sakura City Hospital, Infectious Diseases and Clinical Microbiology, Istanbul, Turkey.
| |
Collapse
|
7
|
Jiang LZ, Shen Y, Liang F, Ye XM, Chen J, Yu YM. Intracranial Myroides odoratimimus Infection After EVD Successfully Treated with Intravenous Plus Intraventricular Tigecycline: A Case Report. Infect Drug Resist 2023; 16:1955-1963. [PMID: 37034395 PMCID: PMC10075215 DOI: 10.2147/idr.s403088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/16/2023] [Indexed: 04/03/2023] Open
Abstract
Intracranial infections are the most serious and common postoperative complications with significant mortality and morbidity. Myroides odoratimimus (M. odoratimimus), a Gram-negative environmental species and an opportunistic microorganism, predominantly infects immunocompromised individuals. Limited clinical experiences and documented multidrug resistance have resulted in a scarcity of data on the treatment of M. odoratimimus infections. As far as we know, this is the first reported case of an intracranial M. odoratimimus infection with external ventricular drains (EVD) that was effectively treated with a combination of intravenous and intraventricular tigecycline in an immunocompetent adult host.
Collapse
Affiliation(s)
- Ling-Zhi Jiang
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, People’s Republic of China
| | - Ye Shen
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, People’s Republic of China
| | - Feng Liang
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, People’s Republic of China
| | - Xiang-Ming Ye
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, People’s Republic of China
- Correspondence: Xiang-Ming Ye, Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, People’s Republic of China, Tel +86-13750814756, Email
| | - Jing Chen
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, People’s Republic of China
| | - Yan-Mei Yu
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People’s Hospital, Affiliated People’s Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, People’s Republic of China
| |
Collapse
|
8
|
Liu S, Zhang L, Feng C, Zhu J, Li A, Zhao J, Zhang Y, Gao M, Shi W, Li Q, Zhang X, Zhang H, Xu T, Lu J, Bao Q. Characterization and Identification of a novel chromosome-encoded metallo-β-lactamase WUS-1 in Myroides albus P34. Front Microbiol 2022; 13:1059997. [PMID: 36532482 PMCID: PMC9751785 DOI: 10.3389/fmicb.2022.1059997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 11/14/2022] [Indexed: 01/12/2024] Open
Abstract
In this study, we identified and characterized a novel chromosomally-encoded class B metallo-β-lactamase (MBL) gene designated bla WUS-1 in a carbapenem-resistant isolate Myroides albus P34 isolated from sewage discharged from an animal farm. Comparative analysis of the deduced amino acid sequence revealed that WUS-1 shares the highest amino acid similarities with the function-characterized MBLs MUS-1 (AAN63647.1; 70.73%) and TUS-1 (AAN63648.1; 70.32%). The recombinant carrying bla WUS-1 exhibited increased MICs levels against a number of β-lactam antimicrobials such as carbenicillin, ampicillin and imipenem, and β-lactamase inhibitors (clavulanic acid and tazobactam). The metallo-β-lactamase WUS-1 could also hydrolyze these antimicrobials and the hydrolytic activities could be inhibited by EDTA. Genetic context analysis of bla WUS-1 revealed that no mobile genetic element was found in its surrounding region. The plasmid pMA84474 of Myroides albus P34 harbored 6 resistance genes (bla OXA-347, aadS, bla MYO-1, ereD, sul2 and ermF) within an approximately 17 kb multidrug resistance (MDR) region. These genes, however, were all related to mobile genetic elements.
Collapse
Affiliation(s)
- Shuang Liu
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Lei Zhang
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Chunlin Feng
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jin Zhu
- Department of Laboratory Medicine, Quzhou People's Hospital, Quzhou, China
| | - Anqi Li
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jingxuan Zhao
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Yuan Zhang
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Mengdi Gao
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Weina Shi
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qiaoling Li
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xueya Zhang
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Hailin Zhang
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
| | - Teng Xu
- Institute of Translational Medicine, Baotou Central Hospital, Baotou, China
| | - Junwan Lu
- Medical Molecular Biology Laboratory, School of Medicine, Jinhua Polytechnic, Jinhua, China
| | - Qiyu Bao
- The Second Affiliated Hospital and Yuying Children’s Hospital, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education, China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
- Medical Molecular Biology Laboratory, School of Medicine, Jinhua Polytechnic, Jinhua, China
| |
Collapse
|
9
|
Taşkın Kafa AH, Hasbek M. Synergistic efficacy of meropenem, ciprofloxacin and colistin antibiotics against planktonic and biofilm forms of Myroides odoratimimus bacterial isolates. Indian J Med Microbiol 2022; 40:399-403. [PMID: 35491280 DOI: 10.1016/j.ijmmb.2022.04.004] [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: 12/23/2021] [Revised: 04/03/2022] [Accepted: 04/13/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE In this study, it was aimed to investigate the combined synergistic efficacy of colistin (CT), meropenem (MEM), and ciprofloxacin (CIP) antibiotics on planktonic and biofilm forms in Myroidesodoratimimus strains isolated from various clinical specimens. METHODS Antibiotic susceptibility was determined by the Kirby-Bauer disk diffusion method. In addition, minimum inhibitory concentrations (MIC) of CIP, MEM, and CT were studied using the standardized broth microdilution method. In vitro synergistic activity of antibiotics against M. odoratimimus planktonic bacteria strains was studied by the Micro Broth Checkerboard method. The microtiter plate (MtP) method was used to determine the effectiveness of antibiotics on M. odoratimimus biofilm formation. RESULTS A zone of inhibition was not observed against other antibiotics used except amikacin and linezolid in all strains. While CT/MEM and CT/CIP combinations have a synergistic effect on all strains, the combination CIP/MEM has an additive effect. According to the biofilm inhibition results, all three antibiotics inhibited biofilm formation. However, the efficacy of MEM (60.3-76.5%) and CIP (60.2-77.8%) was approximately two times higher than that of CT (25.4-34.5%). In addition, the effectiveness of combinations of antibiotics on biofilm formation was examined and the percentage of inhibition was 30.8% when CT was used alone, while the biofilm inhibition rates of CT/MEM and CT/CIP were 92.4% and 91.7%, respectively. MEM/CIP combination was inhibited biofilm formation by 75.7%. CONCLUSIONS This study is the first report showing the efficacy of CT, MEM and CIP antibiotics, which are frequently used in clinical practice, in combination on M. odoratimimus planktonic and biofilm forms. The findings of our study are particularly guiding for combined antibiotic treatment options in immunosuppressed patients admitted to an intensive care unit (ICU). The CT/MEM combination is currently used frequently. In addition, these results are important in terms of supporting in vitro that CT/CIP and MEM/CIP combinations can also be used as a treatment option in M. odoratimimus related infections.
Collapse
Affiliation(s)
- Ayşe Hümeyra Taşkın Kafa
- Sivas Cumhuriyet University, Faculty of Medicine, Department of Medical Microbiology, 58140, Sivas, Turkey.
| | - Mürşit Hasbek
- Sivas Cumhuriyet University, Faculty of Medicine, Department of Medical Microbiology, 58140, Sivas, Turkey.
| |
Collapse
|
10
|
Myroides cellulitis and bacteremia: A case report. IDCases 2021; 24:e01061. [PMID: 33850715 PMCID: PMC8024596 DOI: 10.1016/j.idcr.2021.e01061] [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: 12/20/2020] [Revised: 02/20/2021] [Accepted: 03/09/2021] [Indexed: 11/30/2022] Open
Abstract
Formerly classified under the genus Flavobacterium, Myroides species are common gram-negative, environmental bacterium ubiquitous in soil and water. While infrequent, infections of human hosts can result in devastating consequences due the bacteria’s intrinsic multidrug resistance, particularly in those who are immunocompromised. The pathogenicity and mechanisms for resistance remain poorly understood at this time. The case presented in this report details Myroides bacteremia secondary to a soft tissue infection of the lower extremities and adds to the 60 documented infections to date, of which 15 were also characterized by a similar infection.
Collapse
|
11
|
Mahendran AJ, Agrawal S, Rastogi N, Gupta N. Myroides: A Rare but Hard-to-crack Villain in a Critical Care Setup. Indian J Crit Care Med 2021; 25:735-736. [PMID: 34316160 PMCID: PMC8286405 DOI: 10.5005/jp-journals-10071-23845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
How to cite this article: Mahendran AJ, Agrawal S, Rastogi N, et al. Myroides: A Rare but Hard-to-crack Villain in a Critical Care Setup. Indian J Crit Care Med 2021;25(6):735–736.
Collapse
Affiliation(s)
| | - Sumita Agrawal
- Department of Pulmonary, Critical Care and Sleep Medicine, Medipulse Hospital, Jodhpur, Rajasthan, India
| | - Neha Rastogi
- Department of Infectious Diseases, AIIMS, Delhi, India
| | - Nitesh Gupta
- Department of Pulmonary, Critical Care and Sleep Medicine, VMMC and Safdarjung Hospital, Delhi, India
| |
Collapse
|
12
|
Bean DC, Wigmore SM, Abdul Momin MHF, Wareham DW. Polymyxin Resistant Bacteria in Australian Poultry. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2020. [DOI: 10.3389/fsufs.2020.550318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
13
|
Yang S, Liu Q, Shen Z, Wang H, He L. Molecular Epidemiology of Myroides odoratimimus in Nosocomial Catheter-Related Infection at a General Hospital in China. Infect Drug Resist 2020; 13:1981-1993. [PMID: 32612373 PMCID: PMC7323792 DOI: 10.2147/idr.s251626] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/14/2020] [Indexed: 11/30/2022] Open
Abstract
Purpose Catheter-related infection (CRI) is one of the most frequent causes of hospitalizations for immunocompromised patients. A major challenge is the increased prevalence of Myroides odoratimimus. The purpose of the present study was to evaluate the clinical features and molecular characteristics of M. odoratimimus collected from a general hospital in Shanghai, China. Patients and Methods From July 2015 to August 2016, a total of 22 isolates of M. odoratimimus were collected from inpatients respectively from the biliary and pancreatic surgery (6/22) and the urology department (16/22). Clonal relatedness among the isolates was assessed using pulsed-field gel electrophoresis (PFGE) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Moreover, the antimicrobial susceptibility tests were carried out using the Clinical and Laboratory Standards Institute (CLSI) broth microdilution method. The presence of antibiotic resistance genes was screened using the polymerase chain reaction (PCR) assay. Additionally, protein structure prediction was analyzed using PSIPRED and RaptorX. Results PFGE differentiated these isolates into six possibly related clones from two different departments obtained during a distinct period, indicating clonal dissemination in the two departments. We compared the dendrograms of M. odoratimimus isolates obtained by MALDI-TOF MS with those obtained by PFGE and found that the coincidence rate between them was only 68.2%. All the M. odoratimimus isolates were highly resistant to most available antibiotics, including carbapenems. Furthermore, chromosome-encoded β-lactamases MUS-1 was confirmed by PCR in 6 of 22 Myroides odoratimimus isolates. Herein, we also reported a novel variant of blaMUS-1 in the remaining 16 isolates, which encodes MUS-3 protein at position 60 (Valine to Alanine), differing from the structure of MUS-1. Conclusion The opportunistic and extensively antibiotic-resistant Myroides odoratimimus has a small range of epidemics in these two different departments. Clinicians should be aware that M. odoratimimus may induce a severe nosocomial outbreak of catheter-related infections, particularly in immunocompromised patients.
Collapse
Affiliation(s)
- Shuang Yang
- Department of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Qian Liu
- Department of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Zhen Shen
- Department of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Hua Wang
- Department of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Lei He
- Department of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| |
Collapse
|
14
|
Zhang P, Liu M, Fu J, Zhong C, Zong G, Cao G. Identification of a mobilizable, multidrug-resistant genomic island in Myroides odoratimimus isolated from Tibetan pasture. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:137970. [PMID: 32217404 DOI: 10.1016/j.scitotenv.2020.137970] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 02/28/2020] [Accepted: 03/14/2020] [Indexed: 06/10/2023]
Abstract
Strains of the environmental bacterium Myroides odoratimimus can cause human infections. However, treating M. odoratimimus infections can be difficult because of multidrug resistance in this organism. In this study, we isolated strain M. odoratimimus G13 from pastureland in Tibet, China. The minimum inhibitory concentration analysis suggested that strain G13 has resistance to multiple antibiotics, with an MIC for tetracycline of 168 mg/L. Whole-genome sequencing and bioinformatic analysis revealed that the genome of G13 was rich in virulence factor-encoding genes and antibiotic resistance genes (ARGs). The mobilizable genomic island MGI1313 was also identified and characterized, and six resistance genes related to four types of antibiotics were annotated in MGI1313. Conjugation assays indicated that MGI1313 could be transferred from G13 to Escherichia coli 25DN by horizontal gene transfer, resulting in multidrug-resistant E. coli conjugants. In conclusion, multidrug-resistant M. odoratimimus G13 and the mobility of MGI1313 raise the risk of difficult-to-treat bacterial infections and should be under close surveillance.
Collapse
Affiliation(s)
- Peipei Zhang
- The State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China; Department of Epidemiology, the First Affiliated Hospital of Shandong First Medical University, Jinan 250062, China; Shandong Medicinal Biotechnology Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
| | - Meng Liu
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Jiafang Fu
- Department of Epidemiology, the First Affiliated Hospital of Shandong First Medical University, Jinan 250062, China; Shandong Medicinal Biotechnology Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China; Key Laboratory for Biotech-Drugs of National Health Commission, Jinan 250062, China
| | - Chuanqing Zhong
- School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, China
| | - Gongli Zong
- Department of Epidemiology, the First Affiliated Hospital of Shandong First Medical University, Jinan 250062, China; Shandong Medicinal Biotechnology Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China; Key Laboratory for Biotech-Drugs of National Health Commission, Jinan 250062, China
| | - Guangxiang Cao
- Department of Epidemiology, the First Affiliated Hospital of Shandong First Medical University, Jinan 250062, China; Shandong Medicinal Biotechnology Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China.
| |
Collapse
|
15
|
Wang Y, Xu J, Kong L, Li B, Li H, Huang WE, Zheng C. Raman-activated sorting of antibiotic-resistant bacteria in human gut microbiota. Environ Microbiol 2020; 22:2613-2624. [PMID: 32114713 PMCID: PMC7383503 DOI: 10.1111/1462-2920.14962] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 02/26/2020] [Indexed: 01/12/2023]
Abstract
The antibiotic‐resistant bacteria (ARB) and antibiotic‐resistant genes (ARGs) in human gut microbiota have significant impact on human health. While high throughput metagenomic sequencing reveals genotypes of microbial communities, the functionality, phenotype and heterogeneity of human gut microbiota are still elusive. In this study, we applied Raman microscopy and deuterium isotope probing (Raman–DIP) to detect metabolic active ARB (MA‐ARB) in situ at the single‐cell level in human gut microbiota from two healthy adults. We analysed the relative abundances of MA‐ARB under different concentrations of amoxicillin, cephalexin, tetracycline, florfenicol and vancomycin. To establish the link between phenotypes and genotypes of the MA‐ARB, Raman‐activated cell sorting (RACS) was used to sort MA‐ARB from human gut microbiota, and mini‐metagenomic DNA of the sorted bacteria was amplified, sequenced and analysed. The sorted MA‐ARB and their associated ARGs were identified. Our results suggest a strong relation between ARB in human gut microbiota and personal medical history. This study demonstrates that the toolkit of Raman–DIP, RACS and DNA sequencing can be useful to unravel both phenotypes and genotypes of ARB in human gut microbiota at the single‐cell level.
Collapse
Affiliation(s)
- Yi Wang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China.,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.,Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - Jiabao Xu
- Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - Lingchao Kong
- School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Bei Li
- The State Key Lab of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, CAS, 130033, Changchun, China.,HOOKE Instruments Ltd., 130033, Changchun, China
| | - Hang Li
- HOOKE Instruments Ltd., 130033, Changchun, China
| | - Wei E Huang
- Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, UK
| | - Chunmiao Zheng
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| |
Collapse
|
16
|
Choudhary M, Choudhary BK, Bera BC, Chaudhari SP, Giri DK, Ghosh RC, Barbuddhe SB. Association of Myroides odoratimimus in immunocompromized piglets with post weaning multisystemic wasting syndrome. J Appl Microbiol 2019; 127:1635-1645. [PMID: 31517421 DOI: 10.1111/jam.14448] [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: 02/21/2019] [Revised: 09/05/2019] [Accepted: 09/05/2019] [Indexed: 11/29/2022]
Abstract
AIM To study the association of opportunistic infection due to Myroides odoratimimus in piglets immunocompromised by porcine circovirus type 2 (PCV2) infection. METHODS AND RESULTS The clinical samples (n = 101) were analysed bacteriologically. The isolates were identified by their phenotypes and MALDI TOF-MS analysis as Myroides species. The phylogram constructed based on nucleotide sequences of the 16S rRNA gene showed identity (~99%) with the M. odoratimimus isolates. The minimum inhibitory concentration values for antibiotics revealed M. odoratimimus to be resistant against carbapenem, cephalosporins, aminoglycosides and fluoroquinolones. The presence of PCV2 in affected tissue samples was confirmed by amplification of the 565 bp region of ORF2 of the PCV2 genome. The topology of the phylogenetic tree grouped the PCV2 with cluster-2d. CONCLUSIONS PCV2 being immunosuppressive in nature might have impaired the immunity thereby increasing the susceptibility of immunocompromised piglets to opportunistic pathogens such as M. odoratimimus leading to disease severity and high mortality. The M. odoratimimus isolates were found to be multidrug resistant and evidenced for uncertain clinical relevance and hence could act as hidden source of public health hazard. SIGNIFICANCE AND IMPACT OF THE STUDY Myroides odoratimimus is a rarely reported human pathogen. We reported the incidence of infection due to seemingly rare isolates of M. odoratimimus causing an outbreak of pneumonia in piglets. This appears, to the best of authors' knowledge, to be the first outbreak due to Myroides recorded in animal clinical cases described in the literature.
Collapse
Affiliation(s)
- M Choudhary
- ICAR-National Institute of Biotic Stress Management, Raipur, Chhattisgarh, India
| | - B K Choudhary
- ICAR-National Institute of Biotic Stress Management, Raipur, Chhattisgarh, India
| | - B C Bera
- ICAR-NCVTC, National Research Centre on Equines, Hisar, Haryana, India
| | - S P Chaudhari
- Department of Veterinary Public Health, Centre for Zoonoses, Nagpur Veterinary College, Maharashtra Animal and Fishery Sciences University, Nagpur, India
| | - D K Giri
- Department of Veterinary Pathology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidylaya, Raipur, Chhattisgarh, India
| | - R C Ghosh
- Department of Veterinary Pathology, College of Veterinary Science & A.H., Chhattisgarh Kamdhenu Vishwavidylaya, Raipur, Chhattisgarh, India
| | - S B Barbuddhe
- ICAR-National Research Centre on Meat, Chengicherla, Hyderabad, India
| |
Collapse
|
17
|
Meyer A, Dang H, Roland W. Myroides spp. cellulitis and bacteremia: A case report. IDCases 2019; 18:e00638. [PMID: 31538047 PMCID: PMC6745435 DOI: 10.1016/j.idcr.2019.e00638] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 11/07/2022] Open
Abstract
Myroides spp., formerly Flavobacterium spp., are gram-negative, non-motile, traditionally opportunistic pathogens that are infrequent clinical isolates. Myroides spp. have been pathogenically implicated in only 52 reported cases since the discovery of the Flavobacterium genus in the 1920s. We present a case of Myroides spp. lower extremity cellulitis and bacteremia. To our knowledge, this is the 16th case of cutaneous infection caused by Myroides spp. Etiology of this patient’s infection was felt to be related to exposure of his pre-existing lower extremity wounds to soil and water versus a dog lick in the context of relative immunosuppression from type 2 diabetes and chronic inhaled steroid use. Given the characteristic multi-drug resistance of Myroides spp., resistance to usual empiric antimicrobials given for cellulitis, and potential for fatal infection in cases of pan-resistance, it is important that clinicians remain alert to the possibility of this rare pathogen.
Collapse
Affiliation(s)
- Amy Meyer
- School of Medicine, University of Missouri, Columbia, MO 65212, United States
| | - Harry Dang
- Department of Medicine, University of Missouri, Columbia, MO 65212, United States
| | - William Roland
- Department of Medicine - Division of Infectious Diseases, University of Missouri, Columbia, MO 65212, United States
| |
Collapse
|
18
|
LaVergne S, Gaufin T, Richman D. Myroides injenensis Bacteremia and Severe Cellulitis. Open Forum Infect Dis 2019; 6:ofz282. [PMID: 31334299 PMCID: PMC6634436 DOI: 10.1093/ofid/ofz282] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 06/13/2019] [Indexed: 12/24/2022] Open
Abstract
Myroides spp. are environmental bacterial organisms that rarely cause disease in humans. Myroides spp. infections are infrequently reported in the literature, and Myroides injenensis infections are quite uncommon. Myroides spp. usually infect immunocompromised hosts and can have highly resistant antibiotic susceptibility patterns. Here we report a case of Myroides injenensis bacteremia and severe cellulitis in a patient with cirrhosis and review the literature of other Myroides spp. infections.
Collapse
Affiliation(s)
- Stephanie LaVergne
- Division of Infectious Diseases, University of California, San Diego, La Jolla, California
| | - Thaidra Gaufin
- Division of Infectious Diseases, University of California, San Diego, La Jolla, California
| | - Douglas Richman
- VA San Diego Healthcare System and Division of Infectious Diseases, University of California, San Diego, La Jolla, California
| |
Collapse
|
19
|
Licker M, Sorescu T, Rus M, Cirlea N, Horhat F, Jurescu C, Botoca M, Cumpănaş A, Timar R, Muntean D. Extensively drug-resistant Myroides odoratimimus - a case series of urinary tract infections in immunocompromised patients. Infect Drug Resist 2018; 11:743-749. [PMID: 29849466 PMCID: PMC5965371 DOI: 10.2147/idr.s161069] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Purpose We report an outbreak of urinary tract infections (UTIs) caused by Myroides odoratimimus, which occurred in the largest clinical hospital in western Romania. Patients and methods From June to August 2017, four strains of M. odoratimimus were isolated from the urine samples of patients hospitalized in the urology, diabetes, and surgery departments. Hospital records of all patients whose urine cultures were positive for M. odoratimimus were reviewed retrospectively. We also reviewed the cases reported in the literature. Results All UTIs, except one, were hospital-acquired infections. All patients with M. odoratimimus UTIs were immunocompromised. Three patients underwent urinary catheterization with a Foley’s catheter upon admission in the emergency department and one presented for replacement of ureterostomy tubes. All Myroides isolates were resistant to almost all the tested antibiotics. Two patients were successfully treated with tigecycline and one was receiving antimicrobial treatment for another infection at the time of isolation of the microorganism. Conclusion Although M. odoratimimus is an uncommon pathogen, clinicians should be aware of its ability to cause UTI outbreaks, especially in the immunocompromised population. Due to its multi-drug resistance, it is important to rapidly identify Myroides spp. in order to choose the best treatment regimen.
Collapse
Affiliation(s)
- Monica Licker
- Department of Microbiology, "Victor Babeş" University of Medicine and Pharmacy, TimisŞoara, Romania.,Clinical Laboratory, "Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Teodora Sorescu
- Department of Internal Medicine II, "Victor BabesŞ" University of Medicine and Pharmacy, TimisŞoara, Romania.,Diabetes Clinic, "Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Maria Rus
- "Victor BabesŞ" University of Medicine and Pharmacy, TimisŞoara, Romania.,"Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Natalia Cirlea
- "Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Florin Horhat
- Department of Microbiology, "Victor Babeş" University of Medicine and Pharmacy, TimisŞoara, Romania
| | - Cristiana Jurescu
- "Victor BabesŞ" University of Medicine and Pharmacy, TimisŞoara, Romania.,"Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Mircea Botoca
- Department of Orthopaedics - Traumatology, Urology and Medical Imaging, "Victor BabesŞ" University of Medicine and Pharmacy, TimisŞoara, Romania.,Urology Unit, "Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Alin Cumpănaş
- Department of Orthopaedics - Traumatology, Urology and Medical Imaging, "Victor BabesŞ" University of Medicine and Pharmacy, TimisŞoara, Romania.,Urology Unit, "Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Romulus Timar
- Department of Internal Medicine II, "Victor BabesŞ" University of Medicine and Pharmacy, TimisŞoara, Romania.,Diabetes Clinic, "Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| | - Delia Muntean
- Department of Microbiology, "Victor Babeş" University of Medicine and Pharmacy, TimisŞoara, Romania.,Clinical Laboratory, "Pius Brînzeu" Emergency Clinical County Hospital, TimisŞoara, Romania
| |
Collapse
|
20
|
Gonzales Zamora JA, Baez Presser J. Bacterial Meningitis Caused by Myroides in a Patient With Cerebrospinal Fluid Leakage. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2018. [DOI: 10.1097/ipc.0000000000000632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
Gunzer F, Rudolph WW, Bunk B, Schober I, Peters S, Müller T, Oberheitmann B, Schröttner P. Whole-genome sequencing of a large collection of Myroides odoratimimus and Myroides odoratus isolates and antimicrobial susceptibility studies. Emerg Microbes Infect 2018; 7:61. [PMID: 29618738 PMCID: PMC5884818 DOI: 10.1038/s41426-018-0061-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 02/16/2018] [Accepted: 02/25/2018] [Indexed: 12/04/2022]
Abstract
The genus Myroides comprises several species of Gram-negative, non-motile, and non-fermenting bacteria, which have been regarded as non-pathogenic for decades. Multiple recent reports, however, underscore the pathogenic potential that Myroides sp. possesses for humans. These bacteria seem to be resistant to a wide range of antibiotics (including ß-lactams and aminoglycosides). Therefore, treatment options are limited. Knowledge of antimicrobial resistance, however, is based on only one meaningful comprehensive study and on data published from case reports. This lack of data motivated us to test 59 strains from our Myroides collection (43 M. odoratimimus and 16 M. odoratus) for resistance against 20 commonly used antibiotics. We also performed molecular analyses to reveal whether our bacteria harbor the genus-specific M. odoratimimus metallo-ß-lactamase (MUS-1) or the M. odoratus metallo ß-lactamase (TUS-1), and other ß-lactamases, which may provide an explanation for the extended antimicrobial resistance.
Collapse
Affiliation(s)
- Florian Gunzer
- Institut für Medizinische Mikrobiologie und Hygiene, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307, Dresden, Germany
| | - Wolfram W Rudolph
- Institut für Virologie, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307, Dresden, Germany
| | - Boyke Bunk
- Leibniz-Institut DSMZ-Deutsche Sammlung für Mikroorganismen und Zellkulturen GmbH, Inhoffenstrasse 7 B, 38124, Braunschweig, Germany
| | - Isabel Schober
- Leibniz-Institut DSMZ-Deutsche Sammlung für Mikroorganismen und Zellkulturen GmbH, Inhoffenstrasse 7 B, 38124, Braunschweig, Germany
| | - Sonja Peters
- Leibniz-Zentrum für Marine Tropenforschung (ZMT), Fahrenheitstrasse 6, 28359, Bremen, Germany.,Q-Bioanalytic GmbH, Fischkai 1, 27572, Bremerhaven, Germany
| | - Theres Müller
- Institut für Medizinische Mikrobiologie und Hygiene, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307, Dresden, Germany
| | | | - Percy Schröttner
- Institut für Medizinische Mikrobiologie und Hygiene, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307, Dresden, Germany.
| |
Collapse
|
22
|
Beharrysingh R. Myroides bacteremia: A case report and concise review. IDCases 2017; 8:34-36. [PMID: 28331806 PMCID: PMC5358935 DOI: 10.1016/j.idcr.2017.02.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 02/26/2017] [Accepted: 02/26/2017] [Indexed: 11/30/2022] Open
Abstract
Myroides species are bacteria found commonly in environmental sources, such as water and soil. Despite this, they are historically uncommon pathogens, tending to affect primarily immunocompromised hosts. Based on a review of the current cases listed in the U.S. National Institutes of Health's National Library of Medicine (Table 1), there have been 48 reported cases of infection to date, one third of which have been reported in only the last seven years. This report outlines a case of bacteremia caused by Myroides species occurring in a diabetic male on chemotherapy for Merkel cell cancer. Myroides species can be difficult to treat, many strains are resistant to several antibacterial classes, this patient was treated successfully with meropenem.
Collapse
|
23
|
Prateek S, Gupta P, Mittal G, Singh AK. Fatal Case of Pericardial Effusion Due to Myroides Odoratus: A Rare Case Report. J Clin Diagn Res 2015; 9:DD01-2. [PMID: 26672889 DOI: 10.7860/jcdr/2015/15120.6740] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 09/18/2015] [Indexed: 11/24/2022]
Abstract
Myroides spp., previously known as Flavobacterium odoratum, are rare clinical isolates and are often considered non-pathogenic. Natural habitat includes soil, fresh and marine waters, in foods and in sewage treatment plants. We present an unusual case of fatal pericardial effusion due to Myroides odoratus in a patient suffering from chronic kidney disease and undergoing maintenance haemodialysis. This case is presented to show the increasing incidence of rare isolates causing localized and systemic infections and due to their high intrinsic resistance to many antibiotics they can be fatal. Thus isolation of these pathogens is of great clinical importance.
Collapse
Affiliation(s)
- Shashank Prateek
- Consultant Microbiologist, Department of Microbiology, Metro Heart and Multispeciality Institute , Haridwar, Uttarakhand, India
| | - Priyanka Gupta
- Senior Resident, Department of Microbiology, Himalayan Institute of Medical Sciences , Dehradun, Uttarakhand, India
| | - Garima Mittal
- Associate Professor, Department of Microbiology, Himalayan Institute of Medical Sciences , Dehradun, Uttarakhand, India
| | - Amit K Singh
- Assistant Professor, Department of Microbiology, Mayo Institute of Medical Sciences , Lucknow, Utter Pardesh, India
| |
Collapse
|
24
|
Ravindran C, Varatharajan GR, Raju R, Vasudevan L, Anantha SR. Infection and pathogenecity of Myroides odoratimimus (NIOCR-12) isolated from the gut of grey mullet (Mugil cephalus (Linnaeus, 1758)). Microb Pathog 2015; 88:22-8. [DOI: 10.1016/j.micpath.2015.08.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 07/31/2015] [Accepted: 08/03/2015] [Indexed: 10/23/2022]
|
25
|
|
26
|
Endicott-Yazdani TR, Dhiman N, Benavides R, Spak CW. Myroides odoratimimus bacteremia in a diabetic patient. Proc (Bayl Univ Med Cent) 2015; 28:342-3. [PMID: 26130883 DOI: 10.1080/08998280.2015.11929268] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Myroides species are a rare source of human infection. Though not part of the human microbiota, Myroides species are commonly found in the environment. Myroides infections are typically attributed to contact with contaminated water; the most common presentation is in immunocompromised patients. We present a patient with a diabetic foot ulcer who subsequently developed Myroides odoratimimus bacteremia and bone abscess.
Collapse
Affiliation(s)
- Tiana R Endicott-Yazdani
- Department of Internal Medicine (Endicott-Yazdani), the Department of Pathology (Benavides), and the Division of Infectious Diseases (Spak), Baylor University Medical Center at Dallas; and med fusion and ClearPoint Diagnostic Laboratories, Lewisville, Texas (Dhiman, Benavides)
| | - Neelam Dhiman
- Department of Internal Medicine (Endicott-Yazdani), the Department of Pathology (Benavides), and the Division of Infectious Diseases (Spak), Baylor University Medical Center at Dallas; and med fusion and ClearPoint Diagnostic Laboratories, Lewisville, Texas (Dhiman, Benavides)
| | - Raul Benavides
- Department of Internal Medicine (Endicott-Yazdani), the Department of Pathology (Benavides), and the Division of Infectious Diseases (Spak), Baylor University Medical Center at Dallas; and med fusion and ClearPoint Diagnostic Laboratories, Lewisville, Texas (Dhiman, Benavides)
| | - Cedric W Spak
- Department of Internal Medicine (Endicott-Yazdani), the Department of Pathology (Benavides), and the Division of Infectious Diseases (Spak), Baylor University Medical Center at Dallas; and med fusion and ClearPoint Diagnostic Laboratories, Lewisville, Texas (Dhiman, Benavides)
| |
Collapse
|
27
|
Al-Bayssari C, Gupta SK, Dabboussi F, Hamze M, Rolain JM. MUS-2, a novel variant of the chromosome-encoded β-lactamase MUS-1, from Myroides odoratimimus. New Microbes New Infect 2015; 7:67-71. [PMID: 26257915 PMCID: PMC4522612 DOI: 10.1016/j.nmni.2015.06.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 06/22/2015] [Indexed: 11/28/2022] Open
Abstract
The aim of the present study was to investigate the molecular mechanism of carbapenem resistance of three imipenem-resistant isolates of Myroides odoratimimus recovered from two livestock farms of cows and pigeons by rectal swab in Lebanon in January 2014. Investigation of imipenem resistance of these isolates using the modified Hodge test, the EDTA test, the modified CarbaNP test and the matrix-assisted laser desorption/ionization time-of-flight mass spectrometry Ultraflex assay showed a carbapenemase activity due to the presence of a chromosome-encoded β-lactamase MUS, verified by PCR. However amplification and sequencing of this chromosomal gene showed a novel variant of it designated MUS-2 by the curators of the Lahey database of β-lactamases (http://www.lahey.org/Studies/webt.asp). Cloning of the blaMUS-2 was performed, followed by protein expression in Escherichia coli TOP 10. Pulsed-field gel electrophoresis clearly showed that the three isolates belonged to the same clone. This study reports a novel variant of the chromosome-encoded blaMUS-1 associated with carbapenem resistance in Myroides odoratimimus and shows that animals may represent a reservoir of bacteria harbouring several variants of resistance genes.
Collapse
Affiliation(s)
- C Al-Bayssari
- Laboratoire Microbiologie Santé et Environnement (LMSE), Centre Azm pour la Recherche en Biotechnologie et ses Applications, Ecole Doctorale de Sciences et de Technologie, Université Libanaise, Tripoli, Libya ; Aix-Marseille Université, Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes (URMITE), IHU Méditerranée Infection, Faculté de Médecine et de Pharmacie, Marseille, France
| | - S Kumar Gupta
- Aix-Marseille Université, Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes (URMITE), IHU Méditerranée Infection, Faculté de Médecine et de Pharmacie, Marseille, France
| | - F Dabboussi
- Laboratoire Microbiologie Santé et Environnement (LMSE), Centre Azm pour la Recherche en Biotechnologie et ses Applications, Ecole Doctorale de Sciences et de Technologie, Université Libanaise, Tripoli, Libya
| | - M Hamze
- Laboratoire Microbiologie Santé et Environnement (LMSE), Centre Azm pour la Recherche en Biotechnologie et ses Applications, Ecole Doctorale de Sciences et de Technologie, Université Libanaise, Tripoli, Libya
| | - J-M Rolain
- Aix-Marseille Université, Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes (URMITE), IHU Méditerranée Infection, Faculté de Médecine et de Pharmacie, Marseille, France
| |
Collapse
|
28
|
Liu H, Iwase H, Wijkstrom M, Singh J, Klein E, Wagner R, Humar A, Pasculle W, Cooper DKC. MYROIDES INFECTION IN A BABOON AFTER PROLONGED PIG KIDNEY GRAFT SURVIVAL. Transplant Direct 2015; 1:1-5. [PMID: 26146660 PMCID: PMC4486305 DOI: 10.1097/txd.0000000000000523] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 04/13/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Immunosuppressed patients and experimental nonhuman primates are at risk of opportunistic infection. We report a Myroides spp infection in an immunosuppressed baboon that had received a life-supporting kidney from a genetically-engineered pig. CASE REPORT The baboon received a costimulation blockade-based immunosuppressive regimen as well as two anti-inflammatory agents (tocilizumab and etanercept). Although the pig kidney functioned well, approximately four months after the transplant the baboon became less active and ate and drank poorly. On day 136, it collapsed and died despite inotropic and fluid support. A blood culture drawn before death grew Myroides spp. DISCUSSION AND CONCLUSIONS To our knowledge, Myroides spp has not been reported as a cause of opportunistic infection in either patients with organ allotransplants or experimental animals. We summarize what is known about this rare organism, and suggest it should be considered in any immunocompromised patient or animal. In the present case, we suggest the baboon died of circulatory shock following infection through an indwelling intravenous catheter.
Collapse
Affiliation(s)
- Hong Liu
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, USA ; Department of General Surgery, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Hayato Iwase
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, USA
| | - Martin Wijkstrom
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, USA
| | - Jagjit Singh
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, USA
| | - Edwin Klein
- Division of Laboratory Animal Resources, University of Pittsburgh, PA, USA
| | - Robert Wagner
- Division of Laboratory Animal Resources, University of Pittsburgh, PA, USA
| | - Abhinav Humar
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, USA
| | - William Pasculle
- Department of Microbiology, University of Pittsburgh, Pittsburgh, USA
| | - David K C Cooper
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, USA
| |
Collapse
|
29
|
Deepa R, Venkatesh KG, Parveen JD, Banu ST, Jayalakshmi G. Myroides odoratus and Chryseobacterium indologenes: Two rare isolates in the immunocompromised. Indian J Med Microbiol 2014; 32:327-30. [DOI: 10.4103/0255-0857.136592] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
30
|
Crum-Cianflone NF, Matson RW, Ballon-Landa G. Fatal case of necrotizing fasciitis due to Myroides odoratus. Infection 2014; 42:931-5. [PMID: 24806817 DOI: 10.1007/s15010-014-0626-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 04/21/2014] [Indexed: 10/25/2022]
Abstract
Myroides sp., previously known as Flavobacterium odoratum, is a relatively unknown organism with unclear human pathogenicity. While Myroides sp. has been implicated in human infections, many reports have described the organism as a relatively avirulent opportunistic pathogen. We present an unusual case of rapidly fatal necrotizing fasciitis and septic shock due to Myroides odoratus. Our case demonstrates the pathogenicity of Myroides, and highlights potential risk factors for infection including underlying liver disease and open wounds. The recognition of Myroides is of particular importance given its resistance to multiple antibiotics. We review the literature on Myroides sp. skin and soft tissue infections, including necrotizing forms, and discuss the clinical presentation and management of this potentially emerging pathogen.
Collapse
|
31
|
Schröttner P, Rudolph WW, Eing BR, Bertram S, Gunzer F. Comparison of VITEK2, MALDI-TOF MS, and 16S rDNA sequencing for identification of Myroides odoratus and Myroides odoratimimus. Diagn Microbiol Infect Dis 2014; 79:155-9. [PMID: 24666701 DOI: 10.1016/j.diagmicrobio.2014.02.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 01/30/2014] [Accepted: 02/01/2014] [Indexed: 11/17/2022]
Abstract
The genus Myroides comprises the 2 medically relevant species Myroides odoratus and Myroides odoratimimus that are rare opportunistic pathogens and cause infections in immunocompromised patients. A fast identification of Myroides is of importance because these bacterial strains show multiple resistance against antibiotics and therefore limit treatment options. They are associated, for instance, with urinary tract infections, sepsis, meningitis, pneumonia, and infectious cellulitis. Since more and more Myroides spp. are being described, additional potentially pathogenic bacteria may be identified in the future demanding the need for fast and reliable identification methods at species level. However, to date, only molecular approaches meet these demands. In this study, we, therefore, attempt to define an appropriate method other than DNA fingerprinting that will permit a comparable efficacy and, possibly, a more economical strain identification. For this purpose, we compared 2 widely used automated diagnostic systems (VITEK 2 [bioMérieux, Nürtingen, Germany] and Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS) [Bruker Daltonics, Bremen, Germany]) and correlated the results to 16S rDNA sequencing data. In total, we analyzed 22 strains collected in the course of routine diagnostics. In this study, we demonstrate that VITEK 2 reliably identifies the genus Myroides but cannot differentiate between M. odoratimimus and M. odoratus. In contrast to this, both MALDI-TOF MS and 16S rDNA sequencing efficiently distinguish between the 2 species.
Collapse
Affiliation(s)
- Percy Schröttner
- Institut für Medizinische Mikrobiologie und Hygiene, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
| | - Wolfram W Rudolph
- Institut für Virologie, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Bodo R Eing
- Synlab Medizinisches Versorgungszentrum Augsburg GmbH, Gubener Straße 39, 86156 Augsburg, Germany
| | - Sebastian Bertram
- Synlab Medizinisches Versorgungszentrum Augsburg GmbH, Gubener Straße 39, 86156 Augsburg, Germany
| | - Florian Gunzer
- Institut für Medizinische Mikrobiologie und Hygiene, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307 Dresden, Germany; Institut für Virologie, Medizinische Fakultät Carl Gustav Carus, TU Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| |
Collapse
|
32
|
Maraki S, Sarchianaki E, Barbagadakis S. Myroides odoratimimus soft tissue infection in an immunocompetent child following a pig bite: case report and literature review. Braz J Infect Dis 2013; 16:390-2. [PMID: 22846131 DOI: 10.1016/j.bjid.2012.06.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 03/26/2012] [Indexed: 11/17/2022] Open
Abstract
Members of the genus Myroides are aerobic Gram-negative bacteria that are common in environmental sources, but are not components of the normal human microflora. Myroides organisms behave as low-grade opportunistic pathogens, causing infections in severely immunocompromised patients and rarely, in immunocompetent hosts. A case of Myroides odoratimimus cellulitis following a pig bite in an immunocompetent child is presented, and the medical literature on Myroides spp. soft tissue infections is reviewed.
Collapse
Affiliation(s)
- Sofia Maraki
- Department of Clinical Microbiology, Parasitology, Zoonoses, and Geographical Medicine, University Hospital of Heraklion, Crete, Greece.
| | | | | |
Collapse
|
33
|
Relationship between plasmid occurrence and antibiotic resistance in Myroides odoratimimus SKS05-GRD isolated from raw chicken meat. World J Microbiol Biotechnol 2013; 29:983-90. [PMID: 23315267 DOI: 10.1007/s11274-013-1257-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 01/04/2013] [Indexed: 10/27/2022]
Abstract
Fifteen flavobacterium strains were isolated from raw chicken meat, raw goat meat and poultry soil in Coimbatore, Tamil Nadu. Most of the isolates developed yellow pigmented colonies with mucoid-spreading edges on food flavobacterium medium. The flavobacteria were Gram-negative rods and failed to produce indole and were non-fermentative. Moreover, they produced a rich array of enzymes such as amylase, lipase, catalase, urease, gelatinase, DNase, and oxidase. Phylogenetic analyses of the strain SKS05-GRD based on 16S rRNA gene sequences revealed the bacterium as Myroides odoratimimus (nucleotide sequence accession number JQ178355). Antimicrobial susceptibility test for M. odoratimimus SKS05-GRD and other strains were assessed by disc diffusion method. M. odoratimimus SKS05-GRD showed wide resistance to the antibiotics such as amikacin, ampicillin, cefadroxil, cefoperazone, ceftazidine, ceftriaxone, netillin and gentamicin. M. odoratimimus was subjected to plasmid isolation and plasmid curing to seek the relationship between plasmid and antibiotic resistance. Plasmid curing was done by using ethidium bromide and was found to be effective at 300 and 500 μg/ml. Assessment of antibiotic sensitivity of M. odoratimimus SKS05-GRD showed sensitivity to amikacin, gentamicin and kanamycin confirming that resistance to these three antibiotics is plasmid mediated and other antibiotic resistance are chromosomal mediated.
Collapse
|
34
|
Genome sequence of Myroides injenensis M09-0166(T), isolated from clinical specimens. J Bacteriol 2012; 194:2748-9. [PMID: 22535932 DOI: 10.1128/jb.00276-12] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A new Myroides species has been isolated from the urine of a patient with fever in spite of multiple antibiotic treatments who had undergone a radical hysterectomy for cervical cancer and percutaneous nephrostomies for hydronephrosis in the past. The isolate, Myroides injenensis M09-0166(T) (KCTC 23367(T)), showed a high level of resistance to multiple antibiotic agents. Here we provide the first report of the draft genome sequence of a novel species in the genus Myroides within the nonfermenting Gram-negative group.
Collapse
|
35
|
Ktari S, Mnif B, Koubaa M, Mahjoubi F, Ben Jemaa M, Mhiri MN, Hammami A. Nosocomial outbreak of Myroides odoratimimus urinary tract infection in a Tunisian hospital. J Hosp Infect 2011; 80:77-81. [PMID: 22099498 DOI: 10.1016/j.jhin.2011.09.010] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Accepted: 09/25/2011] [Indexed: 10/15/2022]
Abstract
We report a nosocomial outbreak of urinary tract infection caused by Myroides odoratimimus, previously called Flavobacterium odoratum, in the urology unit of a Tunisian hospital. From May to November 2010, seven isolates of M. odoratimimus were recovered from urine. Pulsed-field gel electrophoresis clearly differentiated these isolates into two possibly related clones from two different periods. All patients but one had urinary calculi and underwent endourological surgery. All Myroides isolates were resistant to all antibiotics tested. Three patients were successfully treated with ciprofloxacin and rifampicin. Clinicians should be aware that M. odoratimimus may induce serious and prolonged nosocomial outbreaks of urinary tract infections.
Collapse
Affiliation(s)
- S Ktari
- Laboratoire de Microbiologie, CHU Habib Bourguiba, Sfax, Tunisia
| | | | | | | | | | | | | |
Collapse
|
36
|
Benedetti P, Rassu M, Pavan G, Sefton A, Pellizzer G. Septic shock, pneumonia, and soft tissue infection due to Myroides odoratimimus: report of a case and review of Myroides infections. Infection 2011; 39:161-5. [PMID: 21246247 DOI: 10.1007/s15010-010-0077-1] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2010] [Accepted: 12/13/2010] [Indexed: 11/26/2022]
Abstract
The genus Myroides comprises aerobic, yellow-pigmented, non-motile, non-fermenting gram-negative rods formerly classified as Flavobacterium odoratum. Members of the genus are widely distributed in the environment, especially in water, and usually behave as low-grade opportunistic pathogens, having been found to cause urinary tract infection, endocarditis, ventriculitis, and cutaneous infections in severely immunocompromised patients. We report a case of soft tissue infection, septic shock, and pneumonia due to M. odoratimimus in an immunocompetent male. To our knowledge, this is the first description of life-threatening infection caused by this organism in an immunocompetent host. We have also reviewed the medical literature on the genus Myroides.
Collapse
Affiliation(s)
- P Benedetti
- Unità Operativa di Malattie Infettive e Tropicali, Ospedale S. Bortolo, Viale F. Rodolfi, 37, 36100, Vicenza, Italy.
| | | | | | | | | |
Collapse
|
37
|
Dharne M, Gupta A, Rangrez A, Ghate H, Patole M, Shouche Y. Antibacterial activities of multi drug resistant Myroides odoratimimus bacteria isolated from adult flesh flies (Diptera: sarcophagidae) are independent of metallo beta-lactamase gene. Braz J Microbiol 2008; 39:397-404. [PMID: 24031236 PMCID: PMC3768384 DOI: 10.1590/s1517-838220080002000035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 12/07/2007] [Accepted: 05/04/2008] [Indexed: 11/30/2022] Open
Abstract
FLESH FLIES (DIPTERA Sarcophagidae) are well known cause of myiasis and their gut bacteria have never been studied for antimicrobial activity against bacteria. Antimicrobial studies of Myroides spp. are restricted to nosocomial strains. A Gram-negative bacterium, Myroides sp., was isolated from the gut of adult flesh flies (Sarcophaga sp.) and submitted to evaluation of nutritional parameters using Biolog GN, 16S rRNA gene sequencing, susceptibility to various antimicrobials by disc diffusion method and detection of metallo β-lactamase genes (TUS/MUS). The antagonistic effects were tested on Gram-negative and Gram-positive bacteria isolated from human clinical specimens, environmental samples and insect mid gut. Bacterial species included were Aeromonas hydrophila, A. culicicola, Morganella morganii subsp. sibonii, Ochrobactrum anthropi, Weissella confusa, Escherichia coli, Ochrobactrum sp., Serratia sp., Kestersia sp., Ignatzschineria sp., Bacillus sp. The Myroides sp. strain was resistant to penicillin-G, erythromycin, streptomycin, amikacin, kanamycin, gentamycin, ampicillin, trimethoprim and tobramycin. These strain showed antibacterial action against all bacterial strains except W. confusa, Ignatzschineria sp., A. hydrophila and M. morganii subsp. sibonii. The multidrug resistance of the strain was similar to the resistance of clinical isolates, inhibiting growth of bacteria from clinical, environmental and insect gut samples. The metallo β-lactamase (TUS/MUS) genes were absent, and resistance due to these genes was ruled out, indicating involvement of other secretion machinery.
Collapse
Affiliation(s)
- M.S. Dharne
- Molecular Biology Unit, National Centre for Cell Science, Ganeshkhind, Pune-411 007, Maharashtra, India
- Present address: Produce and Quality and Safety Laboratory, Henry A. Wallace Beltsville Agricultural Research Center, Agricultural Research Service, 10300 Baltimore Avenue, Beltsville, Maryland 20705, United States
| | - A.K. Gupta
- Molecular Biology Unit, National Centre for Cell Science, Ganeshkhind, Pune-411 007, Maharashtra, India
| | - A.Y. Rangrez
- Molecular Biology Unit, National Centre for Cell Science, Ganeshkhind, Pune-411 007, Maharashtra, India
| | - H.V. Ghate
- Department of Zoology, Modern College of Arts, Science and Commerce, Shivajinagar, Pune-411 005, Maharashtra, India
| | - M.S. Patole
- Molecular Biology Unit, National Centre for Cell Science, Ganeshkhind, Pune-411 007, Maharashtra, India
| | - Y.S. Shouche
- Molecular Biology Unit, National Centre for Cell Science, Ganeshkhind, Pune-411 007, Maharashtra, India
| |
Collapse
|
38
|
Bachmeyer C, Entressengle H, Khosrotehrani K, Goldman G, Delisle F, Arlet G, Grateau G. Cellulitis due to Myroides odoratimimus in a patient with alcoholic cirrhosis. Clin Exp Dermatol 2007; 33:97-8. [PMID: 18039344 DOI: 10.1111/j.1365-2230.2007.02590.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
39
|
Chapter 21 Culture media for genera in the family flavobacteriaceae. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0079-6352(03)80024-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
40
|
Mammeri H, Bellais S, Nordmann P. Chromosome-encoded beta-lactamases TUS-1 and MUS-1 from Myroides odoratus and Myroides odoratimimus (formerly Flavobacterium odoratum), new members of the lineage of molecular subclass B1 metalloenzymes. Antimicrob Agents Chemother 2002; 46:3561-7. [PMID: 12384365 PMCID: PMC128705 DOI: 10.1128/aac.46.11.3561-3567.2002] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Myroides odoratus and Myroides odoratimimus (formerly designated in a single species as Flavobacterium odoratum) are gram-negative aerobes and sources of nosocomial infections in humans. They have variable susceptibility to beta-lactams and a decreased susceptibility to carbapenems. Using genomic DNAs of M. odoratus CIP 103105 and M. odoratimimus CIP 103073 reference strains, shotgun cloning of beta-lactamase genes was performed, followed by protein expression in Escherichia coli. The deduced amino acid sequences of these beta-lactamase genes revealed that TUS-1 and MUS-1 from M. odoratus CIP 103105 and M. odoratimimus CIP 103073, respectively, shared 73% amino acid identity. Mature proteins TUS-1 and MUS-1, with pI values of 7.8 and 5.2, respectively, had relative molecular masses of ca. 26 kDa. These beta-lactamases are members of the subclass B1 of metallo-beta-lactamases and are distantly related to other metalloenzymes, being most closely related to IND-1 from Chryseobacterium indologenes (42% amino acid identity). However, phylogenic analysis showed that TUS-1 and MUS-1 belong to the same phylogenic lineage of subclass B1 enzymes that groups the subclass B1 beta-lactamases of Flavobacterium species. Kinetic parameters of purified beta-lactamases TUS-1 and MUS-1 detailed their hydrolysis spectra, which encompass most beta-lactams except aztreonam. beta-Lactamases TUS-1 and MUS-1 were classified in functional subgroup 3a of metalloenzymes. This work further characterizes chromosome-encoded metalloenzymes from Flavobacteriaceae species that explain at least part of their intrinsic resistance to beta-lactams.
Collapse
Affiliation(s)
- Hedi Mammeri
- Service de Bactériologie-Virologie, Hôpital de Bicêtre, Assistance Publique/Hôpitaux de Paris, Faculté de Médecine Paris-Sud, 94275 Le Kremlin-Bicêtre Cédex, France
| | | | | |
Collapse
|
41
|
Jooste PJ, Hugo CJ. The taxonomy, ecology and cultivation of bacterial genera belonging to the family Flavobacteriaceae. Int J Food Microbiol 1999; 53:81-94. [PMID: 10634700 DOI: 10.1016/s0168-1605(99)00162-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The group known as the 'flavobacteria' has previously been regarded as synonymous with the genus Flavobacterium. Today, however, flavobacteria refers to the family Flavobacteriaceae comprising 10 genera. This review deals with the rapid changes in the taxonomy of these bacteria, especially over the last decade. It also briefly reviews the ecology of the genera in this family and describes the media that have been utilized in the general and selective cultivation of these organisms.
Collapse
Affiliation(s)
- P J Jooste
- Animal Nutrition and Animal Products Institute, Irene, South Africa
| | | |
Collapse
|
42
|
Schreckenberger PC. Emended classification and description of the family e and the genus i and the genus m. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0196-4399(00)88639-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
43
|
Fraser SL, Jorgensen JH. Reappraisal of the antimicrobial susceptibilities of Chryseobacterium and Flavobacterium species and methods for reliable susceptibility testing. Antimicrob Agents Chemother 1997; 41:2738-41. [PMID: 9420049 PMCID: PMC164199 DOI: 10.1128/aac.41.12.2738] [Citation(s) in RCA: 153] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Several Flavobacterium species, comprising a heterogeneous group of gram-negative bacilli that are capable of causing opportunistic infections in humans, have recently been reclassified as Chryseobacterium or Myroides species. Intrinsically resistant to a number of antibiotics, these organisms have been reported to be susceptible to vancomycin and certain other drugs that are normally active against gram-positive bacteria. By using the National Committee for Clinical Laboratory Standards (NCCLS) broth microdilution procedure, 58 clinical isolates of former flavobacteria (36 Chryseobacterium meningosepticum isolates, 11 C. indologenes isolates, 3 C. gleum isolates, 4 unspeciated former members of Flavobacterium group IIb, and 4 Myroides odoratum isolates) were tested with 23 antibiotics, including conventional and investigational agents. In addition, the broth microdilution results were compared to those generated by agar dilution, E-test, and disk diffusion for vancomycin and piperacillin-tazobactam. Compared to the NCCLS microdilution results, there were 7.1 and 17.9% very major errors with piperacillin-tazobactam by agar dilution and E-test, respectively. In addition, there were from 12.1 to 48.3% minor errors with both procedures with vancomycin and piperacillin-tazobactam. The very major and minor error rates were unacceptably high with disk testing of piperacillin-tazobactam; the use of enterococcal vancomycin disk breakpoints (zone diameter of > or =17 mm = susceptible) resulted in >20% minor errors but only one very major error. All of the isolates were susceptible to minocycline; over 90% were susceptible to sparfloxacin, levofloxacin, and clinafloxacin; and 88% were susceptible to rifampin. None was susceptible to vancomycin. When Chryseobacterium or Myroides species are isolated from serious infections, susceptibility testing by broth microdilution should be performed and therapy should be guided by those results.
Collapse
Affiliation(s)
- S L Fraser
- Department of Medicine, Brooke Army Medical Center, Fort Sam Houston, Texas 78234-6200, USA
| | | |
Collapse
|
44
|
Reasoner DJ, Blannon JC, Geldreich EE, Barnick J. Nonphotosynthetic pigmented bacteria in a potable water treatment and distribution system. Appl Environ Microbiol 1989; 55:912-21. [PMID: 2729990 PMCID: PMC184224 DOI: 10.1128/aem.55.4.912-921.1989] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The occurrence of pigmented bacteria in potable water, from raw source water through treatment to distribution water, including dead-end locations, was compared at sample sites in a large municipal water system. Media used to enumerate heterotrophic bacteria and differentiate pigmented colonies were standard method plate count (SPC), m-SPC, and R2A agars, incubated up to 7 days at 35 degrees C. The predominant pigmented bacteria at most sample locations were yellow and orange, with a small incidence of pink organisms at the flowing distribution site. Seasonal variations were seen, with the yellow and orange organisms shifting in dominance. SPC agar was the least productive medium for both heterotroph counts and pigmented bacteria differentiation. At the flowing distribution site, percentages of pigmented bacteria on SPC medium ranged from 2.3 to 9.67 times less than on m-SPC and from 2.3 to 9.86 times less than on R2A. At the same site, seasonal trends in the percentage of pigmented bacteria were the same for m-SPC and R2A media, and the highest and lowest percentages occurred in the fall and winter, respectively. At site 6, there appeared to be an inverse relationship between the yellow and orange pigmented groups, but upon analysis, this did not hold and all correlations between yellow and orange pigmented bacteria were positive. The study results indicate that pigmented bacteria could readily be detected by using plate counting media developed for heterotroph enumeration in potable waters with incubation periods of 7 days. Pigmented bacteria can be used as an additional marker for monitoring changes in water quality. High numbers of heterotrophs, including pigmented forms, were found at dead-end locations, usually in the absence of a free chlorine residual and when the water temperature was greater than 16 degrees C. The association of some pigmented bacteria with nosocomial and other infections raises concern that the organisms may have originated from the potable water supply. High levels of pigmented bacteria could pose an increased health risk to immunologically compromised individuals. Therefore, the bacterial quality of the distribution water should be controlled to prevent the development of high concentrations of heterotrophic plate count bacteria, including the pigmented forms.
Collapse
Affiliation(s)
- D J Reasoner
- Drinking Water Research Division, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268
| | | | | | | |
Collapse
|
45
|
Siegman-Igra Y, Schwartz D, Soferman G, Konforti N. Flavobacterium group IIb bacteremia: report of a case and review of Flavobacterium infections. Med Microbiol Immunol 1987; 176:103-11. [PMID: 3574239 DOI: 10.1007/bf00200682] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A case of nonfatal Flavobacterium CDC group IIb bacteremia in a hospitalized woman is presented. The portal of entry of the organism was either an intravenous line or an open, eroded wound associated with bilateral breast carcinoma. Flavobacterium infections in the post-neonatal age group are reviewed.
Collapse
|
46
|
Weeksella virosa gen. no v., sp. nov. (Formerly group IIf), found in human clinical specimens. Syst Appl Microbiol 1986. [DOI: 10.1016/s0723-2020(86)80075-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
47
|
Holmes B, Steigerwalt A, Weaver R, Brenner DJ. Weeksella zoohelcum sp. nov. (Formerly group IIj), from human clinical specimens. Syst Appl Microbiol 1986. [DOI: 10.1016/s0723-2020(86)80076-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
48
|
Flint KP. A note on a selective agar medium for the enumeration of Flavobacterium species in water. THE JOURNAL OF APPLIED BACTERIOLOGY 1985; 59:561-6. [PMID: 3831005 DOI: 10.1111/j.1365-2672.1985.tb03361.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A selective nutrient agar medium containing kanamycin at 50 micrograms/ml was developed for the isolation and enumeration of yellow-pigmented colonies from the River Sowe, Coventry. Such organisms were shown to be members of the heterogeneous genus Flavobacterium. Typically, yellow pigmented colonies constituted less than 10% of the colonies on nutrient agar alone but up to 70% on nutrient agar plus kanamycin. This medium is a useful addition to the range of media available for the isolation and further ecological study of particular species of this important group of micro-organisms.
Collapse
|
49
|
Watson KC, Muscat I, Wilson N, Glen DA. Meningitis caused by a Flavobacterium-like organism (CDCIIe strain). J Infect 1983; 7:278-9. [PMID: 6663088 DOI: 10.1016/s0163-4453(83)97358-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
50
|
Bruun B. Studies on a collection of strains of the genus Flavobacterium. 2. Nutritional studies. ACTA PATHOLOGICA, MICROBIOLOGICA, ET IMMUNOLOGICA SCANDINAVICA. SECTION B, MICROBIOLOGY 1983; 91:35-41. [PMID: 6869012 DOI: 10.1111/j.1699-0463.1983.tb00006.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
An attempt has been made to further characterize the Flavobacterium groups found in an earlier study by determining utilizable carbon-energy sources. As a preliminary, it was initially tried to define minimal growth factor requirements. It was found likely that most of the Flavobacterium groups have amino acid requirements, but a requirement for vitamins was also established for some strains. Testing Flavobacteria for carbon-energy sources by the replica plating method was found sufficiently technically difficult as to result in dubious readings at times. However, the overall results of the carbon-energy tests are in good agreement with the subdivision resulting from the previously performed biochemical tests, and the validity of the groups delimited in the earlier study is confirmed.
Collapse
|