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Akinbobola AB, Kean R, Hanifi SMA, Quilliam RS. Environmental reservoirs of the drug-resistant pathogenic yeast Candida auris. PLoS Pathog 2023; 19:e1011268. [PMID: 37053164 PMCID: PMC10101498 DOI: 10.1371/journal.ppat.1011268] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
Candia auris is an emerging human pathogenic yeast; yet, despite phenotypic attributes and genomic evidence suggesting that it probably emerged from a natural reservoir, we know nothing about the environmental phase of its life cycle and the transmission pathways associated with it. The thermotolerant characteristics of C. auris have been hypothesised to be an environmental adaptation to increasing temperatures due to global warming (which may have facilitated its ability to tolerate the mammalian thermal barrier that is considered a protective strategy for humans against colonisation by environmental fungi with pathogenic potential). Thus, C. auris may be the first human pathogenic fungus to have emerged as a result of climate change. In addition, the release of antifungal chemicals, such as azoles, into the environment (from both pharmaceutical and agricultural sources) is likely to be responsible for the environmental enrichment of resistant strains of C. auris; however, the survival and dissemination of C. auris in the natural environment is poorly understood. In this paper, we critically review the possible pathways through which C. auris can be introduced into the environment and evaluate the environmental characteristics that can influence its persistence and transmission in natural environments. Identifying potential environmental niches and reservoirs of C. auris and understanding its emergence against a backdrop of climate change and environmental pollution will be crucial for the development of effective epidemiological and environmental management responses.
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Affiliation(s)
- Ayorinde B Akinbobola
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, United Kingdom
| | - Ryan Kean
- Department of Biological and Biomedical Sciences, School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom
| | - Syed Manzoor Ahmed Hanifi
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Health System and Population Studies Division, Shaheed Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Richard S Quilliam
- Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, United Kingdom
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2
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Draft Genome Sequence of the Fluconazole-Resistant Candida palmioleophila Clinical Isolate CBS 18098. Mycopathologia 2022; 188:169-171. [PMID: 36287321 DOI: 10.1007/s11046-022-00682-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/07/2022] [Indexed: 10/31/2022]
Abstract
Candida palmioleophila belongs to the Saccharomycetales. This opportunistic yeast which has been associated with invasive infections in human and animals, warrants a specific attention as it is frequently misidentified and display reduced susceptibility to fluconazole. Here, we report the first draft genome of C. palmioleophila, obtained from a clinical isolate.
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Wang WL, Sun PL, Kao CF, Li WT, Cheng IJ, Yu PH. Disseminated Candidiasis and Candidemia Caused by Candida palmioleophila in a Green Sea Turtle (Chelonia mydas). Animals (Basel) 2021; 11:ani11123480. [PMID: 34944256 PMCID: PMC8697913 DOI: 10.3390/ani11123480] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/04/2021] [Accepted: 12/05/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary A sub-adult green sea turtle was rescued and treated for shell fractures on the carapace and plastron. During the first 2 months, the turtle was kept dry-docked with a placement of an intravenous catheter. Pain management, antibiotic and anthelmintic therapy, fluid therapy, human albumin, force feeding, and wound debridement were provided to manage the shell fractures and to control the infection. After 2 months of care, small budding yeasts were noted on the turtle’s blood smears. Blood cultures yielded yeast-like colonies that were later identified as Candida palmioleophila. The patient was then treated with an antifungal agent and the catheter was removed. Approximately 3.5 months later, the carapace and plastron wounds had healed. However, the turtle died at 7.5 months after rescue. The postmortem examination revealed disseminated yeast in joints, bones, brain, and lungs. This study aims to improve the veterinary medical care and, therefore, enhance the conservation of endangered sea turtles by describing a rare report of systemic C. palmioleophila infection. Abstract A sub-adult green sea turtle (Chelonia mydas) was rescued and treated for carapace and plastron shell fractures. The turtle was kept dry-docked for the first 2 months with a placement of a long-term jugular central venous catheter (CVC). Pain management, aggressive antibiotic and anthelmintic therapy, fluid therapy, force feeding, and wound debridement were provided to manage the shell fractures and control bacteremia. Human albumin was administered to treat severe hypoalbuminemia. On day 59, small budding yeasts were noted on the blood smears. Candidemia was confirmed by blood culture, as the yeasts were identified as Candida palmioleophila by the molecular multi-locus identification method. The CVC was removed, and the patient was treated with itraconazole. Although the carapace and plastron wounds had epithelized by 5.5 months after the rescue, the turtle died unexpectedly by 7.5 months. The postmortem examination revealed numerous necrogranulomas with intralesional yeasts, morphologically compatible with Candida spp., in joints, bones, brain, and lungs, suggestive of disseminated candidiasis. We describe a rare case of candidemia in the veterinary field. To our knowledge, this is the first report of candidiasis caused by C. palmioleophila in a reptile. The present results should improve veterinary medical care and, therefore, enhance the conservation of endangered sea turtle species.
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Affiliation(s)
- Wen-Lin Wang
- Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan;
- National Taiwan University Veterinary Hospital, National Taiwan University, Taipei 10672, Taiwan
| | - Pei-Lun Sun
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan;
- Research Laboratory of Medical Mycology, Department of Dermatology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan 33302, Taiwan
| | - Chi-Fei Kao
- Graduate Institute of Molecular and Comparative Pathology, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan;
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Wen-Ta Li
- Pangolin International Biomedical Consultant Ltd., Keelung 20145, Taiwan;
| | - I-Jiunn Cheng
- Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan;
| | - Pin-Huan Yu
- Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei 10617, Taiwan;
- National Taiwan University Veterinary Hospital, National Taiwan University, Taipei 10672, Taiwan
- Correspondence:
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4
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Ewbank AC, Duarte-Benvenuto A, Zamana-Ramblas R, Navas-Suárez PE, Gattamorta MA, Dos Santos-Costa PC, Catão-Dias JL, Sacristán C. Case report of respiratory aspergillosis and candidiasis in wild Magellanic penguins (Spheniscus magellanicus), Brazil. Braz J Microbiol 2021; 52:967-975. [PMID: 33566323 DOI: 10.1007/s42770-021-00438-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 02/02/2021] [Indexed: 10/22/2022] Open
Abstract
Magellanic penguins (Spheniscus magellanicus) migrate to the continental shelf of southern-southeastern Brazil during austral winter. Stranded penguins are directed to rehabilitation centers, where they occasionally develop fungal diseases. Aspergillosis, a mycosis caused by Aspergillus spp., is one of the most important diseases of captive penguins, while Candida sp. has been detected in penguins undergoing rehabilitation. Nevertheless, their occurrence in the wild is poorly understood. This study surveyed the occurrence of mycoses in free-ranging Magellanic penguins wintering in southeastern Brazil. These penguins were either found dead or stranded alive and died during transport to a rehabilitation center. Overall, 61 fresh to moderate autolyzed carcasses were necropsied. Upon necropsy, three juvenile males (4.9%) presented mycotic-consistent gross lesions. Histopathology and panfungal PCRs confirmed the mycoses. Major microscopic findings were marked chronic necrotizing multifocal to coalescent pneumonia, airsacculitis, and esophageal/gastric serositis with two types of intralesional fungal structures: (a) septated acute-angled branching hyphae (n = 2) and (b) yeast structures (n = 1), both PAS- and Grocott-positive. Sequences identical to Aspergillus sp. were retrieved in two cases, while the third had sequences identical to Candida palmioleophila. This study describes two cases of aspergillosis and one of candidiasis in free-ranging Magellanic penguins, confirming the species' susceptibility in the wild. These mycoses could be associated with the animals' poor body condition, and/or impaired immunity, and natural and anthropogenic challenges related to migration. To the authors' knowledge, this is the first report of aspergillosis in free-ranging Magellanic penguins in the Atlantic Ocean and of candidiasis in penguins worldwide.
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Affiliation(s)
- Ana Carolina Ewbank
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil.
| | - Aricia Duarte-Benvenuto
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil.,Instituto de Pesquisas de Cananéia, Cananéia, São Paulo State, 11990-000, Brazil
| | - Roberta Zamana-Ramblas
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil
| | - Pedro Enrique Navas-Suárez
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil
| | - Marco Aurélio Gattamorta
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil
| | - Priscilla Carla Dos Santos-Costa
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil.,Instituto de Pesquisas de Cananéia, Cananéia, São Paulo State, 11990-000, Brazil
| | - José Luiz Catão-Dias
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil
| | - Carlos Sacristán
- Laboratory of Wildlife Comparative Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, São Paulo State, 05508-270, Brazil
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Fluconazole Resistance in Isolates of Uncommon Pathogenic Yeast Species from the United Kingdom. Antimicrob Agents Chemother 2019; 63:AAC.00211-19. [PMID: 31182537 DOI: 10.1128/aac.00211-19] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 06/07/2019] [Indexed: 01/12/2023] Open
Abstract
The triazole drug fluconazole remains one of the most commonly prescribed antifungal drugs, both for prophylaxis in high-risk patients and also as a second-line treatment option for invasive Candida infections. Established susceptibility profiles and clinical interpretive breakpoints are available for fluconazole with Candida albicans, Candida glabrata, Candida tropicalis, and Candida parapsilosis, which account for the majority of infections due to pathogenic yeast species. However, less common species for which only limited susceptibility data are available are increasingly reported in high-risk patients and from breakthrough infections. The UK National Mycology Reference Laboratory performs routine antifungal susceptibility testing of clinical isolates of pathogenic yeast submitted from across the United Kingdom. Between 2002 and 2016, ∼32,000 isolates were referred, encompassing 94 different yeast species. Here, we present fluconazole antifungal susceptibility data generated using a CLSI methodology over this 15-year period for 82 species (2,004 isolates) of less common yeast and yeast-like fungi, and amphotericin B, fluconazole, itraconazole, voriconazole, posaconazole, and anidulafungin, with members of the Nakaseomyces clade (C. glabrata, Candida nivariensis, and Candida bracarensis). At least 22 different teleomorph genera, comprising 45 species, exhibited high MICs when tested with fluconazole (>20% of isolates with MICs higher than the clinical breakpoint [≥8 mg/liter] proposed for C. albicans). Since several of these species have been reported anecdotally from breakthrough infections and therapeutic failures in patients receiving fluconazole, the current study underscores the importance of rapid and accurate yeast identification and may aid clinicians dealing with infections with rarer yeasts to decide whether fluconazole would be appropriate.
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Reis EJC, Buscariolo F, Siqueira JPZ, Castilho EM, Almeida MTG. Agapornis sp. pet birds: Source of dissemination of azole-resistant yeasts. Med Mycol 2019; 57:515-518. [PMID: 30085109 DOI: 10.1093/mmy/myy061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/23/2018] [Accepted: 07/27/2018] [Indexed: 01/25/2023] Open
Abstract
The objectives of this study were to identify yeasts in 40 feces samples of Agapornis birds and determine their antifungal susceptibility profile by two methodologies. Results indicated 92.5% of positivity (46 isolates). Six genera were identified (14 species): Cryptococcus (39.13%), four species; Candida (36.96%), four species; Rhodotorula (13.05%), two species; Trichosporon (6.52%), two species; Kodamaea ohmeri (2.17%); and Sporobolomyces salmonicolor (2.17%). Regarding the susceptibility profiles, 41.3% of the isolates showed low sensibility to fluconazole and 47.8% to itraconazole. Thus, Agapornis sp. disseminate potentially pathogenic and resistant yeasts. Precautionary measures should be taken regarding breeding and keeping them as pets.
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Affiliation(s)
- Eduardo J C Reis
- Laboratório de Microbiologia, Faculdade de Medicina de São José do Rio Preto, 5416 Brigadeiro Faria Lima Ave., 15090-000, São José do Rio Preto, Brazil.,Universidade Estadual Paulista "Júlio de Mesquita Filho". 2265 Cristovao Colombo St., 15054-000, São José do Rio Preto, Brazil
| | - Fabio Buscariolo
- Laboratório de Microbiologia, Faculdade de Medicina de São José do Rio Preto, 5416 Brigadeiro Faria Lima Ave., 15090-000, São José do Rio Preto, Brazil
| | - João P Z Siqueira
- Laboratório de Microbiologia, Faculdade de Medicina de São José do Rio Preto, 5416 Brigadeiro Faria Lima Ave., 15090-000, São José do Rio Preto, Brazil
| | - Elza M Castilho
- Laboratório de Microbiologia, Faculdade de Medicina de São José do Rio Preto, 5416 Brigadeiro Faria Lima Ave., 15090-000, São José do Rio Preto, Brazil
| | - Margarete T G Almeida
- Laboratório de Microbiologia, Faculdade de Medicina de São José do Rio Preto, 5416 Brigadeiro Faria Lima Ave., 15090-000, São José do Rio Preto, Brazil
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Taverna CG, Córdoba S, Vivot M, Szusz W, Vivot W, Bosco-Borgeat ME, Davel G. Reidentification and antifungal susceptibility profile of Candida guilliermondii and Candida famata clinical isolates from a culture collection in Argentina. Med Mycol 2019; 57:314-323. [PMID: 29955881 DOI: 10.1093/mmy/myy038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/21/2018] [Accepted: 05/15/2018] [Indexed: 01/17/2023] Open
Abstract
The aim of this work was to reidentify strains previously identified as Candida guilliermondii and Candida famata by conventional phenotypic methods conserved in a culture collection from Argentina using ribosomal DNA sequencing, ACT1 gene sequencing, and matrix-assisted laser desorption ionization - time of flight mass spectrometry (MALDI-TOF MS). In addition, we performed antifungal susceptibility tests of eight antifungal drugs commonly used in clinical treatment. We identified 68 isolates belonging to the Candida guilliermondii species complex (59 C. guilliermondii, 8 C. fermentati, and 1 Candida carpophila), 16 isolates belonging to the Candida famata species complex (8 C. famata, 6 Debaryomyces nepalensis, 1 Debaryomyces fabryi, and 1 Debaryomyces tyrocola). Although sequencing of ITS region was able to identify C. guilliermondii and D. nepalensis isolates, sequencing of ACT1 gene seems to be the most appropriate technique for differentiation between C. fermentati and C. carpophila and between members of the C. famata species complex others than D. nepalensis. MALDI-TOF MS has a good potential for the identification of these yeasts, particularly in clinical laboratories since is a rapid and easy to perform technique. Here, we report the first isolation of D. tyrocola from a human patient and the first isolation of D. nepalensis from lungs and blood of human patients. Finally, correct identification and determination of antifungal susceptibility of those closely related species could be a useful tool for clinicians to choose the most effective antifungal treatment.
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Affiliation(s)
- Constanza Giselle Taverna
- Departamento Micología, Instituto Nacional de Enfermedades Infecciosas "Dr. Carlos G. Malbrán," Ciudad Autónoma de Buenos Aires, Argentina
| | - Susana Córdoba
- Departamento Micología, Instituto Nacional de Enfermedades Infecciosas "Dr. Carlos G. Malbrán," Ciudad Autónoma de Buenos Aires, Argentina
| | - Matías Vivot
- Departamento Micología, Instituto Nacional de Enfermedades Infecciosas "Dr. Carlos G. Malbrán," Ciudad Autónoma de Buenos Aires, Argentina
| | - Wanda Szusz
- Departamento Micología, Instituto Nacional de Enfermedades Infecciosas "Dr. Carlos G. Malbrán," Ciudad Autónoma de Buenos Aires, Argentina
| | - Walter Vivot
- Departamento Micología, Instituto Nacional de Enfermedades Infecciosas "Dr. Carlos G. Malbrán," Ciudad Autónoma de Buenos Aires, Argentina
| | - María Eugenia Bosco-Borgeat
- Departamento Micología, Instituto Nacional de Enfermedades Infecciosas "Dr. Carlos G. Malbrán," Ciudad Autónoma de Buenos Aires, Argentina
| | - Graciela Davel
- Departamento Micología, Instituto Nacional de Enfermedades Infecciosas "Dr. Carlos G. Malbrán," Ciudad Autónoma de Buenos Aires, Argentina
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O’Brien CE, McCarthy CGP, Walshe AE, Shaw DR, Sumski DA, Krassowski T, Fitzpatrick DA, Butler G. Genome analysis of the yeast Diutina catenulata, a member of the Debaryomycetaceae/Metschnikowiaceae (CTG-Ser) clade. PLoS One 2018; 13:e0198957. [PMID: 29944657 PMCID: PMC6019693 DOI: 10.1371/journal.pone.0198957] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 05/28/2018] [Indexed: 11/18/2022] Open
Abstract
Diutina catenulata (Candida catenulata) is an ascomycetous yeast that has been isolated from humans, animals and environmental sources. The species is a contaminant of dairy products, and has been linked to superficial and invasive infections in both humans and animals. Previous phylogenetic analyses have assigned the species to the Saccharomycetales, but failed to identify its specific clade. Here, we report the genome sequence of an environmental isolate of D. catenulata. Examination of the tRNA repertoire and coding potential of this species shows that it translates the CUG codon as serine and not leucine. In addition, two phylogenetic analyses using 204 ubiquitous gene family alignments and 3,826 single-copy genes both confirm the placement of the species in the Debaryomycetaceae/Metschnikowiaceae, or CTG-Ser clade. The sequenced isolate contains an MTLα idiomorph. However, unlike most MTL loci in related species, poly (A) polymerase (PAP) is not adjacent to MTLα1.
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Affiliation(s)
- Caoimhe E. O’Brien
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - Charley G. P. McCarthy
- Department of Biology, Genome Evolution Laboratory, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Annie E. Walshe
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - Dennis R. Shaw
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - Deirdre A. Sumski
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - Tadeusz Krassowski
- School of Medicine, Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - David A. Fitzpatrick
- Department of Biology, Genome Evolution Laboratory, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Geraldine Butler
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Belfield, Dublin, Ireland
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