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Salah H, Houbraken J, Boekhout T, Almaslamani M, Taj-Aldeen SJ. Molecular epidemiology of clinical filamentous fungi in Qatar beyond Aspergillus and Fusarium with notes on the rare species. Med Mycol 2023; 61:6967136. [PMID: 36592959 PMCID: PMC9874029 DOI: 10.1093/mmy/myac098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/12/2022] [Accepted: 12/30/2022] [Indexed: 01/04/2023] Open
Abstract
Due to an increasing number of patients at risk (i.e., those with a highly compromised immune system and/or receiving aggressive chemotherapy treatment), invasive fungal infections (IFI) are increasingly being reported and associated with high mortality rates. Aspergillus spp., particularly A. fumigatus, is the major cause of IFI caused by filamentous fungi around the world followed by Fusarium spp., however, other fungi are emerging as human pathogens. The aim of this study was to explore the epidemiology and prevalence of the non-Aspergillus and non-Fusarium filamentous fungi in human clinical samples over an 11-year period in Qatar using molecular techniques. We recovered 53 filamentous fungal isolates from patients with various clinical conditions. Most patients were males (75.5%), 9.4% were immunocompromised, 20.7% had IFI, and 11.3% died within 30 days of diagnosis. The fungal isolates were recovered from a variety of clinical samples, including the nasal cavity, wounds, respiratory samples, body fluids, eye, ear, tissue, abscess, and blood specimens. Among the fungi isolated, 49% were dematiaceous fungi, followed by Mucorales (30%), with the latter group Mucorales being the major cause of IFI (5/11, 45.5%). The current study highlights the epidemiology and spectrum of filamentous fungal genera, other than Aspergillus and Fusarium, recovered from human clinical samples in Qatar, excluding superficial infections, which can aid in the surveillance of uncommon and emerging mycoses.
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Affiliation(s)
- Husam Salah
- To whom correspondence should be addressed. Husam Salah, M.Sc. Division
of Microbiology, Department of Laboratory Medicine and Pathology, Hamad Medical
Corporation, Doha, Qatar, PO Box 3050. Tel: +97-444-391-047. E-mail: ;
| | - Jos Houbraken
- Applied and Industrial Mycology, Westerdijk Fungal Biodiversity
Institute, Utrecht, Netherlands
| | - Teun Boekhout
- Yeast Research, Westerdijk Fungal Biodiversity Institute,
Utrecht, Netherlands,Institute of Biodiversity and Ecosystem Dynamics (IBED), University of
Amsterdam, Amsterdam, The
Netherlands
| | | | - Saad J Taj-Aldeen
- Division of Microbiology, Department of Laboratory Medicine and
Pathology, Hamad Medical Corporation, Doha,
Qatar,Department of Biology, College of Science, University of
Babylon, Hilla, Iraq
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Mateo JJ, Andreu L. Characterization of an exocellular ethanol-tolerant β-glucosidase from Quambalaria cyanescens isolates from unripened grapes. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03578-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kuan CS, Yew SM, Toh YF, Chan CL, Lim SK, Lee KW, Na SL, Hoh CC, Yee WY, Ng KP. Identification and Characterization of a Rare Fungus, Quambalaria cyanescens, Isolated from the Peritoneal Fluid of a Patient after Nocturnal Intermittent Peritoneal Dialysis. PLoS One 2015; 10:e0145932. [PMID: 26716988 PMCID: PMC4696669 DOI: 10.1371/journal.pone.0145932] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 12/10/2015] [Indexed: 11/19/2022] Open
Abstract
Peritonitis is the leading complication of peritoneal dialysis, which is primarily caused by bacteria rather than fungi. Peritonitis is responsible for approximately 18% of the infection-related mortality in peritoneal dialysis patients. In this paper, we report the isolation of a rare fungus, Quambalaria cyanescens, from the peritoneal fluid of a man after he switched from continuous ambulatory peritoneal dialysis to nocturnal intermittent peritoneal dialysis. Based on the morphological examination and multigene phylogeny, the clinical isolate was confirmed as Q. cyanescens. This pathogen exhibited low sensitivity to all tested echinocandins and 5-flucytosine. Interestingly, morphological characterization revealed that Q. cyanescens UM 1095 produced different pigments at low temperatures (25°C and 30°C) on various culture media. It is important to monitor the emergence of this rare fungus as a potential human pathogen in the tropics. This study provides insight into Q. cyanescens UM 1095 phenotype profiles using a Biolog phenotypic microarray (PM). Of the 760 nutrient sources tested, Q. cyanescens UM 1095 utilized 42 compounds, and the fungus can adapt to a broad range of osmotic and acidic environments. To our knowledge, this is the first report of the isolation of Q. cyanescens from peritoneal fluid, revealing this rare fungus as a potential human pathogen that may be misidentified using conventional methods. The detailed morphological, molecular and phenotypic characterization of Q. cyanescens UM 1095 provides the basis for future studies on its biology, lifestyle, and potential pathogenicity.
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Affiliation(s)
- Chee Sian Kuan
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Su Mei Yew
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Yue Fen Toh
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Chai Ling Chan
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Soo Kun Lim
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kok Wei Lee
- Codon Genomics SB, Selangor Darul Ehsan, Malaysia
| | - Shiang Ling Na
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Wai-Yan Yee
- Codon Genomics SB, Selangor Darul Ehsan, Malaysia
| | - Kee Peng Ng
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- * E-mail:
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Kanamori H, Rutala WA, Sickbert-Bennett EE, Weber DJ. Review of Fungal Outbreaks and Infection Prevention in Healthcare Settings During Construction and Renovation. Clin Infect Dis 2015; 61:433-44. [DOI: 10.1093/cid/civ297] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/04/2015] [Indexed: 01/08/2023] Open
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Fan X, Xiao M, Kong F, Kudinha T, Wang H, Xu YC. A rare fungal species, Quambalaria cyanescens, isolated from a patient after augmentation mammoplasty--environmental contaminant or pathogen? PLoS One 2014; 9:e106949. [PMID: 25330078 PMCID: PMC4203675 DOI: 10.1371/journal.pone.0106949] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 08/08/2014] [Indexed: 11/27/2022] Open
Abstract
Some emerging but less common human fungal pathogens are known environmental species and could be of low virulence. Meanwhile, some species have natural antifungal drug resistance, which may pose significant clinical diagnosis and treatment challenges. Implant breast augmentation is one of the most frequently performed surgical procedures in China, and fungal infection of breast implants is considered rare. Here we report the isolation of a rare human fungal species, Quambalaria cyanescens, from a female patient in China. The patient had undergone bilateral augmentation mammoplasty 11 years ago and was admitted to Peking Union Medical College Hospital on 15 September 2011 with primary diagnosis of breast infection. She underwent surgery to remove the implant and fully recovered thereafter. During surgery, implants and surrounding tissues were removed and sent for histopathology and microbiology examination. Our careful review showed that there was no solid histopathologic evidence of infection apart from inflammation. However, a fungal strain, which was initially misidentified as “Candida tropicalis” because of the similar appearance on CHROMagar Candida, was recovered. The organism was later on re-identified as Q. cyanescens, based on sequencing of the rDNA internal transcribed spacer region rather than the D1/D2 domain of 26S rDNA. It exhibited high MICs to 5-flucytosine and all echinocandins, but appeared more susceptible to amphotericin B and azoles tested. The possible pathogenic role of Q. cyanescens in breast implants is discussed in this case, and the increased potential for misidentification of the isolate is a cause for concern as it may lead to inappropriate antifungal treatment.
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Affiliation(s)
- Xin Fan
- Department of Clinical Laboratory, Peking Union Medical College Hospital, and Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Meng Xiao
- Department of Clinical Laboratory, Peking Union Medical College Hospital, and Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Fanrong Kong
- Centre for Infectious Diseases and Microbiology Laboratory Services, Westmead Hospital, Westmead, New South Wales, Australia
| | - Timothy Kudinha
- Centre for Infectious Diseases and Microbiology Laboratory Services, Westmead Hospital, Westmead, New South Wales, Australia
- Charles Sturt University, Orange, New South Wales, Australia
| | - He Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, and Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Ying-Chun Xu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, and Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- * E-mail:
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Subedi S, Kidd SE, Baird RW, Coatsworth N, Ralph AP. Case report: Sporotrichosis from the Northern Territory of Australia. Am J Trop Med Hyg 2014; 91:1263-8. [PMID: 25200259 DOI: 10.4269/ajtmh.14-0456] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We report three cases of lymphocutaneous infection caused by the thermally dimorphic fungus, Sporothrix schenckii from Australia's tropical Northern Territory. Two cases were acquired locally, making them the first to be reported from this region. All three cases presented with ulceration in the limb; however, the classical sporotrichoid spread was present only in the first two cases. Their occurrence within several weeks of each other was suggestive of a common source of environmental contamination such as hay used as garden mulch. Diagnoses were delayed in each case, with each patient having substantial exposure to ineffective antibiotics before the correct diagnosis was made. These cases bring the total number of reported sporotrichosis cases in Australia since 1951 to 199. Lessons from these cases are to consider the diagnosis of sporotrichosis in lesions of typical appearance, even in geographical settings from where this pathogen has not previously been reported.
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Affiliation(s)
- Shradha Subedi
- National Mycology Reference Center, SA Pathology, Adelaide, South Australia; Royal Darwin Hospital, Microbiology, Darwin, Northern Territory, Australia; Royal Darwin Hospital, Department of Medicine, Royal Darwin Hospital, Northern Territory, Australia; Global Tropical Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Sarah E Kidd
- National Mycology Reference Center, SA Pathology, Adelaide, South Australia; Royal Darwin Hospital, Microbiology, Darwin, Northern Territory, Australia; Royal Darwin Hospital, Department of Medicine, Royal Darwin Hospital, Northern Territory, Australia; Global Tropical Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Robert W Baird
- National Mycology Reference Center, SA Pathology, Adelaide, South Australia; Royal Darwin Hospital, Microbiology, Darwin, Northern Territory, Australia; Royal Darwin Hospital, Department of Medicine, Royal Darwin Hospital, Northern Territory, Australia; Global Tropical Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Nicholas Coatsworth
- National Mycology Reference Center, SA Pathology, Adelaide, South Australia; Royal Darwin Hospital, Microbiology, Darwin, Northern Territory, Australia; Royal Darwin Hospital, Department of Medicine, Royal Darwin Hospital, Northern Territory, Australia; Global Tropical Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Anna P Ralph
- National Mycology Reference Center, SA Pathology, Adelaide, South Australia; Royal Darwin Hospital, Microbiology, Darwin, Northern Territory, Australia; Royal Darwin Hospital, Department of Medicine, Royal Darwin Hospital, Northern Territory, Australia; Global Tropical Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia
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Schaffer K, FitzGerald S, Commane M, Maguiness A, Fenelon L. A pseudo-outbreak of Fusarium solani in an intensive care unit associated with bronchoscopy. J Hosp Infect 2008; 69:400-2. [DOI: 10.1016/j.jhin.2008.03.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2007] [Accepted: 03/17/2008] [Indexed: 11/26/2022]
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Tambini R, Farina C, Fiocchi R, Dupont B, Guého B, Delvecchio G, Mamprin F, Gavazzeni G. Possible pathogenic role forSporothrix cyanescensisolated from a lung lesion in a heart transplant patient. Med Mycol 1996. [DOI: 10.1080/02681219680000321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Hagan ME, Klotz SA, Bartholomew W, Potter L, Nelson M. A Pseudoepidemic of Rhodotorula rubra: A Marker for Microbial Contamination of the Bronchoscope. Infect Control Hosp Epidemiol 1995. [DOI: 10.2307/30141917] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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