1
|
Andreani A, Beltramo C, Ponzetta MP, Belcari A, Sacchetti P, Acutis PL, Peletto S. Analysis of the bacterial communities associated with pupae and winged or wingless adults of Lipoptena fortisetosa collected from cervids in Italy. MEDICAL AND VETERINARY ENTOMOLOGY 2023; 37:472-482. [PMID: 36715237 DOI: 10.1111/mve.12644] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 01/04/2023] [Indexed: 06/18/2023]
Abstract
The hippoboscid Lipoptena fortisetosa Maa, 1965 is a hematophagous ectoparasite of cervids that can bite humans. This fly is expanding its geographical range and is of concern for animal and human health since it can potentially harbour harmful microorganisms. This study was aimed at characterizing the bacterial communities of L. fortisetosa in its different life-cycle stages. Pupae and wingless adults were collected from cervids hunted in Tuscan-Emilian Apennines (central Italy) and pooled into groups of 10 by life stage (30 individual pupae; 1420 individual wingless adults). Winged flies were caught by sweep netting and separated into five pools of 10 insects. After DNA extraction, the bacterial content of each pool was analysed using 16 S metabarcoding. Results revealed that the composition and relative abundance of different taxa greatly differed in the three analysed groups. Wingless adults showed a high abundance of Bartonella (33.07%), which is almost absent in winged flies and pupae. Among the detected pathogens, four genera of concern for human health were found: Bartonella, Moraxella, Mycobacterium and Rickettsia. Interestingly reads similar to Bartonella bovis, Moraxella osloensis and Arsenophonus lipopteni Operational Taxonomic Unit (OTUs) were detected. These findings suggest the possible role of L. fortisetosa as a reservoir of pathogenic microorganisms, confirming the need for further investigation to ascertain its vectorial capacity.
Collapse
Affiliation(s)
- Annalisa Andreani
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy
| | - Chiara Beltramo
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
| | - Maria Paola Ponzetta
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy
| | - Antonio Belcari
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy
| | - Patrizia Sacchetti
- Department of Agriculture, Food, Environment and Forestry (DAGRI), University of Florence, Florence, Italy
| | - Pier Luigi Acutis
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
| | - Simone Peletto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Turin, Italy
| |
Collapse
|
2
|
Tan CCS, Ko KKK, Chen H, Liu J, Loh M, Chia M, Nagarajan N. No evidence for a common blood microbiome based on a population study of 9,770 healthy humans. Nat Microbiol 2023; 8:973-985. [PMID: 36997797 PMCID: PMC10159858 DOI: 10.1038/s41564-023-01350-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 03/02/2023] [Indexed: 04/01/2023]
Abstract
Human blood is conventionally considered sterile but recent studies suggest the presence of a blood microbiome in healthy individuals. Here we characterized the DNA signatures of microbes in the blood of 9,770 healthy individuals using sequencing data from multiple cohorts. After filtering for contaminants, we identified 117 microbial species in blood, some of which had DNA signatures of microbial replication. They were primarily commensals associated with the gut (n = 40), mouth (n = 32) and genitourinary tract (n = 18), and were distinct from pathogens detected in hospital blood cultures. No species were detected in 84% of individuals, while the remainder only had a median of one species. Less than 5% of individuals shared the same species, no co-occurrence patterns between different species were observed and no associations between host phenotypes and microbes were found. Overall, these results do not support the hypothesis of a consistent core microbiome endogenous to human blood. Rather, our findings support the transient and sporadic translocation of commensal microbes from other body sites into the bloodstream.
Collapse
Affiliation(s)
- Cedric C S Tan
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
- UCL Genetics Institute, University College London, London, UK.
| | - Karrie K K Ko
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Department of Microbiology, Singapore General Hospital, Singapore, Republic of Singapore
- Department of Molecular Pathology, Singapore General Hospital, Singapore, Republic of Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Hui Chen
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Jianjun Liu
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Marie Loh
- Population and Global Health, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Republic of Singapore
- Department of Epidemiology and Biostatistics, Imperial College London, South Kensington, London, UK
- National Skin Centre, Singapore, Republic of Singapore
| | - Minghao Chia
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Niranjan Nagarajan
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore.
| |
Collapse
|
3
|
Wang Z, Guo L, Li J, Li J, Cui L, Dong J, Wang H. Case Report: The First Report on Moraxella canis Isolation From Corneal Ulcer in a Bulldog. Front Vet Sci 2022; 9:934081. [PMID: 35812875 PMCID: PMC9265251 DOI: 10.3389/fvets.2022.934081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Abstract
A 5-year-old castrated male bulldog was diagnosed with a corneal ulcer accompanied by edema and conjunctival hyperemia. Ophthalmic examination and microbiological analysis were performed, and the bacteria were found to be gram-negative and globular. The isolated clone was identified as Moraxella canis (MZ579539) via MALDI-TOF MS and 16S rDNA sequencing. Antimicrobial susceptibility testing showed that the bacteria were sensitive to tetracycline and chloramphenicol, but resistant to levofloxacin and ciprofloxacin. After a conjunctival flap was placed, tobramycin ophthalmic solution and 5% sodium hyaluronate were administered. Following surgery, the ulcer was effectively controlled, and after 3 weeks, the cornea healed. This is the first case report of a canine corneal ulcer associated with M. canis, which should be considered when corneal ulceration or keratitis were suspected.
Collapse
Affiliation(s)
- Zhihao Wang
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou, China
| | - Long Guo
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou, China
| | - Jun Li
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou, China
| | - Jianji Li
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou, China
| | - Luying Cui
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou, China
| | - Junsheng Dong
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou, China
| | - Heng Wang
- College of Veterinary Medicine, Yangzhou University, Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou, China
- *Correspondence: Heng Wang
| |
Collapse
|
4
|
Kaplan RL, Cruz AT, Freedman SB, Smith K, Freeman J, Lane RD, Michelson KA, Marble RD, Middelberg LK, Bergmann KR, McAneney C, Noorbakhsh KA, Pruitt C, Shah N, Badaki-Makun O, Schnadower D, Thompson AD, Blackstone MM, Abramo TJ, Srivastava G, Avva U, Samuels-Kalow M, Morientes O, Kannikeswaran N, Chaudhari PP, Strutt J, Vance C, Haines E, Khanna K, Gerard J, Bajaj L. Omphalitis and Concurrent Serious Bacterial Infection. Pediatrics 2022; 149:186812. [PMID: 35441224 DOI: 10.1542/peds.2021-054189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/25/2022] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Describe the clinical presentation, prevalence of concurrent serious bacterial infection (SBI), and outcomes among infants with omphalitis. METHODS Within the Pediatric Emergency Medicine Collaborative Research Committee, 28 sites reviewed records of infants ≤90 days of age with omphalitis seen in the emergency department from January 1, 2008, to December 31, 2017. Demographic, clinical, laboratory, treatment, and outcome data were summarized. RESULTS Among 566 infants (median age 16 days), 537 (95%) were well-appearing, 64 (11%) had fever at home or in the emergency department, and 143 (25%) had reported fussiness or poor feeding. Blood, urine, and cerebrospinal fluid cultures were collected in 472 (83%), 326 (58%), and 222 (39%) infants, respectively. Pathogens grew in 1.1% (95% confidence interval [CI], 0.3%-2.5%) of blood, 0.9% (95% CI, 0.2%-2.7%) of urine, and 0.9% (95% CI, 0.1%-3.2%) of cerebrospinal fluid cultures. Cultures from the site of infection were obtained in 320 (57%) infants, with 85% (95% CI, 80%-88%) growing a pathogen, most commonly methicillin-sensitive Staphylococcus aureus (62%), followed by methicillin-resistant Staphylococcus aureus (11%) and Escherichia coli (10%). Four hundred ninety-eight (88%) were hospitalized, 81 (16%) to an ICU. Twelve (2.1% [95% CI, 1.1%-3.7%]) had sepsis or shock, and 2 (0.4% [95% CI, 0.0%-1.3%]) had severe cellulitis or necrotizing soft tissue infection. There was 1 death. Serious complications occurred only in infants aged <28 days. CONCLUSIONS In this multicenter cohort, mild, localized disease was typical of omphalitis. SBI and adverse outcomes were uncommon. Depending on age, routine testing for SBI is likely unnecessary in most afebrile, well-appearing infants with omphalitis.
Collapse
Affiliation(s)
- Ron L Kaplan
- Department of Pediatrics, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, Washington
| | - Andrea T Cruz
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Stephen B Freedman
- Departments of Pediatrics and Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Kathleen Smith
- Department of Pediatrics, Rady Children's Hospital San Diego, San Diego, California
| | - Julia Freeman
- Department of Pediatrics, Children's Hospital Colorado/University of Colorado School of Medicine, Aurora, Colorado
| | - Roni D Lane
- Department of Pediatrics, University of Utah, Primary Children's Hospital, Salt Lake City, Utah
| | - Kenneth A Michelson
- Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts
| | - Richard D Marble
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Leah K Middelberg
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Kelly R Bergmann
- Department of Pediatric Emergency Medicine, Children's Minnesota, Minneapolis, Minnesota
| | - Constance McAneney
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kathleen A Noorbakhsh
- Department of Pediatrics, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Christopher Pruitt
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina
| | - Nipam Shah
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama
| | | | - David Schnadower
- Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Amy D Thompson
- Department of Pediatrics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware
| | - Mercedes M Blackstone
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Thomas J Abramo
- Pediatric Emergency Medicine Associates, Children's Hospital of Atlanta, Atlanta, Georgia
| | | | - Usha Avva
- Department of Pediatrics, Joseph M Sanzari Children's Hospital, Hackensack Meridian Health, Hackensack, New Jersey
| | | | - Oihane Morientes
- Pediatric Emergency Department, Cruces University Hospital, Bilbao, Spain
| | - Nirupama Kannikeswaran
- Department of Pediatrics, Central Michigan University, Children's Hospital of Michigan, Detroit, Michigan
| | - Pradip P Chaudhari
- Department of Pediatrics, University of Southern California, Children's Hospital Los Angeles, Los Angeles, California
| | - Jonathan Strutt
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Cheryl Vance
- Departments of Emergency Medicine and Pediatrics, University of California, Davis School of Medicine, Sacramento, California
| | - Elizabeth Haines
- Ronald O. Perelman Department of Emergency Medicine/NYU Langone Health, New York, New York
| | - Kajal Khanna
- Department of Emergency Medicine, Stanford University, Stanford, California
| | - James Gerard
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louise, Missouri
| | - Lalit Bajaj
- Department of Pediatrics, Children's Hospital Colorado/University of Colorado School of Medicine, Aurora, Colorado
| |
Collapse
|
5
|
Pan L, Wu F, Cai Q, Xu Z, Hu H, Tang T, Yue R, Hou Y, Zhang X, Fang Y, Huang X, Kang Y. Whole Genome Profiling of Lung Microbiome in Solid Organ Transplant Recipients Reveals Virus Involved Microecology May Worsen Prognosis. Front Cell Infect Microbiol 2022; 12:863399. [PMID: 35372133 PMCID: PMC8967177 DOI: 10.3389/fcimb.2022.863399] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 02/22/2022] [Indexed: 11/25/2022] Open
Abstract
Solid organ transplantation (SOT) is the final therapeutic option for recipients with end-stage organ failure, and its long-term success is limited by infections and chronic allograft dysfunction. Viral infection in SOT recipients is considered an important factor affecting prognosis. In this study, we retrospectively analyzed 43 cases of respiratory infections in SOT recipients using metagenomic next-generation sequencing (mNGS) for bronchoalveolar lavage fluid (BALF). At least one virus was detected in 26 (60.5%) recipients, while 17 (39.5%) were virus-negative. Among virus-positive recipients, cytomegalovirus (CMV) was detected in 14 (32.6%), Torque teno virus (TTV) was detected in 9 (20.9%), and other viruses were detected in 6 (14.0%). Prognostic analysis showed that the mortality of the virus-positive group was higher than that of the virus-negative group regardless whether it is the main cause of infection. Analysis of different types of viruses showed that the mortality of the CMV-positive group was significantly higher than that of the CMV-negative group, but no significant difference was observed in other type of virus groups. The diversity analysis of the lung microbiome showed that there was a significant difference between the virus-positive group and the negative group, in particular, the significant differences in microorganisms such as Pneumocystis jirovecii (PJP) and Moraxella osloensiswere detected. Moreover, in the presence of CMV, Pneumocystis jirovecii, Veillonella parvula, and other species showed dramatic changes in the lung of SOT patients, implying that high degree of co-infection between CMV and Pneumocystis jirovecii may occur. Taken together, our study shows that the presence of virus is associated with worse prognosis and dramatically altered lung microbiota in SOT recipients.
Collapse
Affiliation(s)
- Lingai Pan
- Department of Critical Care Medicine, West China Hospital, West China Clinical Medical School, Sichuan University, Chengdu, China
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Fengsheng Wu
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Qingqing Cai
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Zhuofei Xu
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Huan Hu
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Tian Tang
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Ruiming Yue
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yifu Hou
- Department of Organ Transplant Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoqin Zhang
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuan Fang
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Xiaobo Huang
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Yan Kang, ; Xiaobo Huang,
| | - Yan Kang
- Department of Critical Care Medicine, West China Hospital, West China Clinical Medical School, Sichuan University, Chengdu, China
- *Correspondence: Yan Kang, ; Xiaobo Huang,
| |
Collapse
|
6
|
Møller SA, Rasmussen PU, Frederiksen MW, Madsen AM. Work clothes as a vector for microorganisms: Accumulation, transport, and resuspension of microorganisms as demonstrated for waste collection workers. ENVIRONMENT INTERNATIONAL 2022; 161:107112. [PMID: 35091375 DOI: 10.1016/j.envint.2022.107112] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 05/04/2023]
Abstract
Work clothes may act as a vector for the transport of microorganisms leading to second-hand exposure; however, this has not been studied in work environments. We investigated whether microorganisms accumulate on workers' clothes in environments with elevated microbial exposures, and whether they are transported with the clothes and subsequently resuspended to the air. To study this, we selected waste collection workers and potential transport of bacteria and fungi to waste truck cabs via clothes, and compared the microbial communities within truck cabs, in waste collection workers' personal exposure, and on clean T-shirts worn by the workers. Microbial communities were also investigated for the presence of potentially harmful microorganisms. Results showed that microorganisms accumulated in large quantities (GM = 3.69 × 105 CFU/m2/h for bacteria, GM = 8.29 × 104 CFU/m2/h for fungi) on workers' clothes. The concentrations and species composition of airborne fungi in the truck cabs correlated significantly with the accumulation and composition of fungi on clothes and correlated to concentrations (a trend) and species composition of their personal exposures. The same patterns were not found for bacteria, indicating that work clothes to a lesser degree act as a vector for bacteria under waste collection workers' working conditions compared to fungi. Several pathogenic or allergenic microorganisms were present, e.g.: Klebsiella oxytoca, K. pneumoniae, Proteus mirabilis, Providencia rettgeri, Pseudomonas aeruginosa, and Aspergillus fumigatus, A. glaucus, A. nidulans, A. niger, and various Penicillium species. The potential 'take-home' exposure to these microorganisms are of most concern for immunocompromised or atopic individuals or people with open wounds or cuts. In conclusion, the large accumulation of microorganisms on workers' clothes combined with the overlap between fungal species for the different sample types, and the presence of pathogenic and allergenic microorganisms forms the basis for encouragement of good clothing hygiene during and post working hours.
Collapse
Affiliation(s)
- Signe Agnete Møller
- The National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen Ø, Denmark
| | - Pil Uthaug Rasmussen
- The National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen Ø, Denmark
| | - Margit W Frederiksen
- The National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen Ø, Denmark
| | - Anne Mette Madsen
- The National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen Ø, Denmark.
| |
Collapse
|
7
|
|
8
|
Biological Control of Pest Non-Marine Molluscs: A Pacific Perspective on Risks to Non-Target Organisms. INSECTS 2021; 12:insects12070583. [PMID: 34203229 PMCID: PMC8305845 DOI: 10.3390/insects12070583] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 11/17/2022]
Abstract
Simple Summary As malacologists long concerned with conservation of molluscs, we present empirical evidence supporting the proposition that biological control of nonmarine mollusc pests has generally not been demonstrated to be safe and effective, which are the basic measures of success. Yet claims of success often accompany contemporary biological control programs, although without rigorous evaluations. Failed molluscan biocontrol programs include well known classical control efforts that continue to devastate native biodiversity, especially on Pacific islands, as well as more contemporary programs that claim to be safer, with minimal non-target impacts. We do not condemn all biological control programs as ineffective, unsafe, and poorly evaluated, but emphasize the need for programs targeting non-marine molluscs to incorporate the lessons learned from past failures, and to do a better job of defining and measuring success both pre- and post-release of biocontrol agents. Most importantly, we call for the biocontrol community not to rely on entomologists with backgrounds in use of host-specific agents, who yet promote generalist parasites/predators for mollusc control, but to engage more actively with those knowledgeable in molluscan biology, particularly conservation. In doing so, maybe some programs targeting molluscan pests can become safe and effective. Abstract Classic biological control of pest non-marine molluscs has a long history of disastrous outcomes, and despite claims to the contrary, few advances have been made to ensure that contemporary biocontrol efforts targeting molluscs are safe and effective. For more than half a century, malacologists have warned of the dangers in applying practices developed in the field of insect biological control, where biocontrol agents are often highly host-specific, to the use of generalist predators and parasites against non-marine mollusc pests. Unfortunately, many of the lessons that should have been learned from these failed biocontrol programs have not been rigorously applied to contemporary efforts. Here, we briefly review the failures of past non-marine mollusc biocontrol efforts in the Pacific islands and their adverse environmental impacts that continue to reverberate across ecosystems. We highlight the fact that none of these past programs has ever been demonstrated to be effective against targeted species, and at least two (the snails Euglandina spp. and the flatworm Platydemus manokwari) are implicated in the extinction of hundreds of snail species endemic to Pacific islands. We also highlight other recent efforts, including the proposed use of sarcophagid flies and nematodes in the genus Phasmarhabditis, that clearly illustrate the false claims that past bad practices are not being repeated. We are not making the claim that biocontrol programs can never be safe and effective. Instead, we hope that in highlighting the need for robust controls, clear and measurable definitions of success, and a broader understanding of ecosystem level interactions within a rigorous scientific framework are all necessary before claims of success can be made by biocontrol advocates. Without such amendments to contemporary biocontrol programs, it will be impossible to avoid repeating the failures of non-marine mollusc biocontrol programs to date.
Collapse
|
9
|
Strojnik T, Kavalar R, Gornik-Kramberger K, Rupnik M, Robnik SL, Popovic M, Velnar T. Latent brain infection with Moraxella osloensis as a possible cause of cerebral gliomatosis type 2: A case report. World J Clin Oncol 2020; 11:1064-1069. [PMID: 33437667 PMCID: PMC7769709 DOI: 10.5306/wjco.v11.i12.1064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 10/10/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The gram-negative aerobic bacterium Moraxella osloensis is an opportunistic pathogen in brain tissues.
CASE SUMMARY The gram-negative aerobic bacterium Moraxella osloensis was isolated from a patient’s brain tissue during a stereotactic biopsy.
CONCLUSION This is the first report of a brain tissue infection with Moraxella osloensis possibly causing brain gliomatosis.
Collapse
Affiliation(s)
- Tadej Strojnik
- Department of Neurosurgery, University Medical Centre Maribor, Maribor SI-2000, Slovenia
- Faculty of Medicine, University of Maribor, Maribor SI-2000, Slovenia
| | - Rajko Kavalar
- Department of Pathology, University Medical Centre Maribor, Maribor SI-2000, Slovenia
| | | | - Maja Rupnik
- Faculty of Medicine, University of Maribor, Maribor SI-2000, Slovenia
- National Laboratory for Health, Environment and Food, Maribor SI-2000, Slovenia
| | | | - Mara Popovic
- Institute of Pathology, Faculty of Medicine, University of Ljubljana, Ljubljana 1000, Slovenia
| | - Tomaz Velnar
- Department of Neurosurgery, University Medical Centre Ljubljana, Ljubljana 1000, Slovenia
| |
Collapse
|
10
|
Veerabathini BC, Manthani K, Gandhi S. An Unusual Case of Moraxella osleonsis Bacteremia in an Immunocompetent Patient With SARS-CoV-2 Infection. Cureus 2020; 12:e10154. [PMID: 32884878 PMCID: PMC7462647 DOI: 10.7759/cureus.10154] [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] [Indexed: 11/12/2022] Open
Abstract
Moraxella osleonsis (M.osleonsis ) is an organism that rarely presents with bacteremia in immunocompetent patients. We report a case of an immunocompetent 59-year-old male with a recent SARS-CoV-2 infection that developed M.osleonsis bacteremia. We believe that SARS-CoV-2 infection may have played a role in developing M.osleonsis bacteremia in this patient and may be one of the first reported cases of such bacteremia in a COVID-19 patient.
Collapse
Affiliation(s)
- Bala C Veerabathini
- Family Medicine, Peconic Bay Medical Center-Northwell Health, Riverhead, USA
| | - Kaushik Manthani
- Family Medicine, Peconic Bay Medical Center-Northwell Health, Riverhead, USA
| | - Sandeep Gandhi
- Infectious Disease, Peconic Bay Medical Center-Northwell Health, Riverhead, USA
| |
Collapse
|
11
|
Influence of Sampling Site and other Environmental Factors on the Bacterial Community Composition of Domestic Washing Machines. Microorganisms 2019; 8:microorganisms8010030. [PMID: 31877898 PMCID: PMC7022543 DOI: 10.3390/microorganisms8010030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/16/2019] [Accepted: 12/20/2019] [Indexed: 12/19/2022] Open
Abstract
Modern, mainly sustainability-driven trends, such as low-temperature washing or bleach-free liquid detergents, facilitate microbial survival of the laundry processes. Favourable growth conditions like humidity, warmth and sufficient nutrients also contribute to microbial colonization of washing machines. Such colonization might lead to negatively perceived staining, corrosion of washing machine parts and surfaces, as well as machine and laundry malodour. In this study, we characterized the bacterial community of 13 domestic washing machines at four different sampling sites (detergent drawer, door seal, sump and fibres collected from the washing solution) using 16S rRNA gene pyrosequencing and statistically analysed associations with environmental and user-dependent factors. Across 50 investigated samples, the bacterial community turned out to be significantly site-dependent with the highest alpha diversity found inside the detergent drawer, followed by sump, textile fibres isolated from the washing solution, and door seal. Surprisingly, out of all other investigated factors only the monthly number of wash cycles at temperatures ≥ 60 °C showed a significant influence on the community structure. A higher number of hot wash cycles per month increased microbial diversity, especially inside the detergent drawer. Potential reasons and the hygienic relevance of this finding need to be assessed in future studies.
Collapse
|
12
|
Takahashi S, Murata K, Ozawa K, Yamada H, Kawakami H, Nakayama A, Asano Y, Mochizuki K, Mikamo H. Moraxella species: infectious microbes identified by use of time-of-flight mass spectrometry. Jpn J Ophthalmol 2019; 63:328-336. [PMID: 31273564 DOI: 10.1007/s10384-019-00669-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 04/02/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE To report the clinical manifestations, identification, antimicrobial susceptibilities, and treatment outcomes of ocular infections caused by Moraxella species. STUDY DESIGN Retrospective study. PATIENTS AND METHODS The medical records of all patients treated at the Departments of Ophthalmology of the Ogaki Municipal Hospital and the Gifu University Graduate School of Medicine for ocular infections caused by Moraxella species between January 2011 and June 2017 were examined. The stored Moraxella species isolated from ocular samples were identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), molecular identification, and the biochemical properties. RESULTS Sixteen eyes of 16 patients were treated for Moraxella ocular infections. The patients' median age was 72 years. A predisposing systemic or ocular condition was identified in 15 of the patients. Nine of the patients developed keratitis; four, conjunctivitis; and three, blebitis. M lacunata (6 eyes), M catarrhalis (6), M nonliquefaciens (3), and M osloensis (1) were identified by MALDI-TOF MS. All isolates were sensitive to levofloxacin, tobramycin, ceftazidime, ceftriaxone, and cefazolin. Twelve patients with keratitis or blebitis were treated with various topical antimicrobial combinations, and systemic antibiotics were used in 10 of the 12 patients. The mean time for the complete closure of the epithelial defects with keratitis was 24 days. The visual outcomes after treatment were favorable except in 1 keratitis patient who underwent enucleation. CONCLUSIONS The use of duo-therapy with a combination of fluoroquinolone and cefmenoxime should be considered in cases nonresponsive to monotherapy, such as keratitis and bleb-associated infections. MALDI-TOF MS is useful for the identification of Moraxella to the species level.
Collapse
Affiliation(s)
- Shunsuke Takahashi
- Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kazuhiro Murata
- Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kenji Ozawa
- Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiroki Yamada
- Department of Ophthalmology, Ogaki Municipal Hospital, Gifu, Japan
| | - Hideaki Kawakami
- Department of Ophthalmology, Gifu Municipal Hospital, 7-1 Kashima-cho, Gifu-shi, Gifu, 500-8513, Japan.
| | - Asami Nakayama
- Department of Clinical Laboratory, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yuko Asano
- Department of Clinical Laboratory, Ogaki Municipal Hospital, Gifu, Japan
| | - Kiyofumi Mochizuki
- Department of Ophthalmology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiroshige Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University, Aichi, Japan
| |
Collapse
|
13
|
Yamada A, Kasahara K, Ogawa Y, Samejima K, Eriguchi M, Yano H, Mikasa K, Tsuruya K. Peritonitis due to Moraxella osloensis: A case report and literature review. J Infect Chemother 2019; 25:1050-1052. [PMID: 31196771 DOI: 10.1016/j.jiac.2019.05.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/24/2019] [Accepted: 05/20/2019] [Indexed: 10/26/2022]
Abstract
A-26-year-old man was admitted to our hospital with diffuse abdominal pain, nausea, and vomiting. He had a history of malignant nephrosclerosis, for which he had been receiving peritoneal dialysis (PD) for the past 14 months. His PD effluent was cloudy and turbid (white blood cell count, 10,528/μL; neutrophils 95.2%). A Gram-negative coccobacillus was isolated from peritoneal fluid culture. However, the organism could not be identified by matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) (Vitek MS, bioMérieux), but was identified as Moraxella osloensis by the 16S rRNA gene sequencing. He was successfully treated with intraperitoneal cefazolin therapy for 3 weeks without removing the intra-abdominal catheter. A literature review revealed three previous case reports all of which were diagnosed by MALDI Biotyper (Bruker Daltonics), suggesting that the identification of M. osloensis may vary depending on the type of MALDI-TOF MS system. In conclusion, we experienced a case of M. osloensis infection in a PD patient, which was successfully treated by antibiotic treatment, without removing the PD catheter.
Collapse
Affiliation(s)
- Ayano Yamada
- Department of Nephrology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Kei Kasahara
- Center for Infectious Diseases, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan.
| | - Yoshihiko Ogawa
- Center for Infectious Diseases, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Kenichi Samejima
- Department of Nephrology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Masahiro Eriguchi
- Department of Nephrology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Hisakazu Yano
- Department of Microbiology and Infectious Diseases, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Keiichi Mikasa
- Center for Infectious Diseases, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| | - Kazuhiko Tsuruya
- Department of Nephrology, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, Japan
| |
Collapse
|
14
|
Syue LS, Tang HJ, Hung YP, Chen PL, Li CW, Li MC, Tsai PF, Liu CC, Lee NY, Ko WC. Bloodstream infections in hospitalized adults with dengue fever: Clinical characteristics and recommended empirical therapy. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2019; 52:225-232. [DOI: 10.1016/j.jmii.2018.11.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 11/06/2018] [Accepted: 11/13/2018] [Indexed: 12/13/2022]
|
15
|
Peritonitis due to Moraxella Osloensis: An Emerging Pathogen. Case Rep Nephrol 2018; 2018:4968371. [PMID: 30671269 PMCID: PMC6317081 DOI: 10.1155/2018/4968371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 12/10/2018] [Indexed: 11/17/2022] Open
Abstract
Peritonitis is a very serious complication encountered in patients undergoing peritoneal dialysis and healthcare providers involved in the management should be very vigilant. Gram-positive organisms are the frequent cause of peritonitis compared to gram-negative organisms. There has been recognition of peritonitis caused by uncommon organisms because of improved microbiological detection techniques. We report a case of peritonitis caused by Moraxella osloensis (M. osloensis), which is an unusual cause of infections in humans. A 68-year-old male, who has been on peritoneal dialysis for 2 years, presented with abdominal pain and cloudy effluent. Peritoneal fluid analysis was consistent with peritonitis and peritoneal fluid culture grew gram-negative bacteria. M. osloensis was identified by 16 S PCR phenotypic and sequencing techniques. Patient responded well to the treatment, with intraperitoneal cephalosporin, and repeat peritoneal fluid culture yielded no growth. M. osloensis rarely causes infection in humans and responds well to treatment, as reported in literature.
Collapse
|
16
|
Endocarditis Caused by Gram-Negative Moraxella osloensis in an Immunocompetent Patient: First Case Report in Latin America. Case Rep Cardiol 2018; 2018:4209094. [PMID: 29977621 PMCID: PMC6011125 DOI: 10.1155/2018/4209094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/18/2018] [Accepted: 05/13/2018] [Indexed: 11/25/2022] Open
Abstract
This is a case report of infective endocarditis due to Moraxella osloensis. This study would be the fourth since the two latest episodes were described in 2015. The patient of this exposition is different from those previously described in the literature because it was a young adult, under 50 years of age, immunocompetent, with no comorbidities and no obvious focus of infection.
Collapse
|
17
|
Moraxella Species Bacteremia in Cancer Patients. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2018. [DOI: 10.1097/ipc.0000000000000628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
18
|
Gómez-Camarasa C, Fernández-Parra J, Navarro-Marí JM, Gutiérrez-Fernández J. [Moraxella osloensis emerging infection. Visiting to genital infection]. REVISTA ESPANOLA DE QUIMIOTERAPIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE QUIMIOTERAPIA 2018; 31:178-181. [PMID: 29616515 PMCID: PMC6159371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Cristina Gómez-Camarasa
- Servicio de Microbiología, Hospital Universitario Virgen de las Nieves- Instituto de Investigación Biosanitaria de Granada. Granada
| | - Jorge Fernández-Parra
- Unidad de Gestión Clínica de Obstetricia y Ginecología, Hospital Universitario Virgen de las Nieves- Instituto de Investigación Biosanitaria de Granada. Granada
| | - José María Navarro-Marí
- Servicio de Microbiología, Hospital Universitario Virgen de las Nieves- Instituto de Investigación Biosanitaria de Granada. Granada
| | - José Gutiérrez-Fernández
- Servicio de Microbiología, Hospital Universitario Virgen de las Nieves- Instituto de Investigación Biosanitaria de Granada. Granada,Departamento de Microbiología, Facultad de Medicina, Universidad de Granada- Instituto de Investigación Biosanitaria de Granada. Granada
| |
Collapse
|
19
|
Maruyama Y, Shigemura T, Aoyama K, Nagano N, Nakazawa Y. Bacteremia due to Moraxella osloensis: a case report and literature review. Braz J Infect Dis 2018; 22:60-62. [PMID: 29409692 PMCID: PMC9425674 DOI: 10.1016/j.bjid.2017.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 10/24/2017] [Accepted: 10/24/2017] [Indexed: 11/29/2022] Open
Abstract
Herein we report the case of a 10-year-old boy with an autosomal mosaic mutation who developed bacteremia. The causative agent was identified as Moraxella osloensis by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rRNA gene sequencing. In the pediatric population, there have been 13 case reports of infection attributed to M. osloensis and this is the fifth reported case of pediatric bacteremia due to M. osloensis. After Moraxella species infection was confirmed, the patient recovered with appropriate antimicrobial therapy. It is important to consider that M. osloensis can cause serious infections, such as bacteremia, in otherwise healthy children.
Collapse
Affiliation(s)
- Yuta Maruyama
- Shinshu Ueda Medical Center, Department of Pediatrics, Ueda, Japan
| | - Tomonari Shigemura
- Shinshu University, School of Medicine, Department of Pediatrics, Matsumoto, Japan.
| | - Koki Aoyama
- Kofu Municipal Hospital, Department of Pediatrics, Kofu, Japan
| | - Noriyuki Nagano
- Shinshu University, School of Medicine, Department of Health and Medical Sciences, Matsumoto, Japan
| | - Yozo Nakazawa
- Shinshu University, School of Medicine, Department of Pediatrics, Matsumoto, Japan
| |
Collapse
|
20
|
Complete Genome Sequences of Three Moraxella osloensis Strains Isolated from Human Skin. GENOME ANNOUNCEMENTS 2018; 6:6/3/e01509-17. [PMID: 29348360 PMCID: PMC5773745 DOI: 10.1128/genomea.01509-17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Here, we present the complete whole-genome sequences of three Moraxella osloensis strains with octylphenol polyethoxylate-degrading abilities. These strains were isolated from human skin.
Collapse
|
21
|
Alkhatib NJ, Younis MH, Alobaidi AS, Shaath NM. An unusual osteomyelitis caused by Moraxella osloensis: A case report. Int J Surg Case Rep 2017; 41:146-149. [PMID: 29078156 PMCID: PMC5742016 DOI: 10.1016/j.ijscr.2017.10.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/10/2017] [Accepted: 10/13/2017] [Indexed: 11/18/2022] Open
Abstract
Moraxella osloensis is a gram-negative coccobacillus, which part of normal flora in human skin and mucus. Moraxella osloensis rarely causes infections in human, especially in immunocompromised. Proper microbiologic investigation is important to diagnose Moraxella osloensis. Accurate diagnosis and proper treatment are crucial for the resolution of infections caused by Moraxella osloensis.
Introduction Moraxella osloensis is a gram-negative coccobacillus, that is saprophytic on skin and mucosa, and rarely causing human infections. Reported cases of human infections usually occur in immunocompromised patients. Presentation of case We report the second case of M. osloensis-caused-osteomyelitis in literature, occurring in a young healthy man. The organism was identified by sequencing analysis of the 16S ribosomal RNA gene. Our patient was treated successfully with surgical debridement and intravenous third-generation cephalosporins. Discussion M. osloensis has been rarely reported to cause local or invasive infections. Our case report is the second case in literature and it is different from the previously reported case in that our patient has no chronic medical problems, no history of trauma, with unique presentation and features on the MRI and intraoperative finding. Conclusion Proper diagnosis is essential for appropriate treatment of osteomyelitis. RNA gene sequence analysis is the primary method of M. osloensis diagnosis. M. osloensis is usually susceptible to simple antibiotics.
Collapse
Affiliation(s)
- Nidal J Alkhatib
- Orthopedic Surgery Department, Hamad Medical Corporation, Doha, Qatar
| | - Manaf H Younis
- Orthopedic Surgery Department, Hamad Medical Corporation, Doha, Qatar; Department of Public Health, College of Health Sciences, Qatar University, Doha, Qatar.
| | - Ahmad S Alobaidi
- Orthopedic Surgery Department, Hamad Medical Corporation, Doha, Qatar
| | - Nebal M Shaath
- Orthopedic Surgery Department, Hamad Medical Corporation, Doha, Qatar
| |
Collapse
|
22
|
Cardinale M, Kaiser D, Lueders T, Schnell S, Egert M. Microbiome analysis and confocal microscopy of used kitchen sponges reveal massive colonization by Acinetobacter, Moraxella and Chryseobacterium species. Sci Rep 2017; 7:5791. [PMID: 28725026 PMCID: PMC5517580 DOI: 10.1038/s41598-017-06055-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 06/07/2017] [Indexed: 12/22/2022] Open
Abstract
The built environment (BE) and in particular kitchen environments harbor a remarkable microbial diversity, including pathogens. We analyzed the bacterial microbiome of used kitchen sponges by 454–pyrosequencing of 16S rRNA genes and fluorescence in situ hybridization coupled with confocal laser scanning microscopy (FISH–CLSM). Pyrosequencing showed a relative dominance of Gammaproteobacteria within the sponge microbiota. Five of the ten most abundant OTUs were closely related to risk group 2 (RG2) species, previously detected in the BE and kitchen microbiome. Regular cleaning of sponges, indicated by their users, significantly affected the microbiome structure. Two of the ten dominant OTUs, closely related to the RG2-species Chryseobacterium hominis and Moraxella osloensis, showed significantly greater proportions in regularly sanitized sponges, thereby questioning such sanitation methods in a long term perspective. FISH–CLSM showed an ubiquitous distribution of bacteria within the sponge tissue, concentrating in internal cavities and on sponge surfaces, where biofilm–like structures occurred. Image analysis showed local densities of up to 5.4 * 1010 cells per cm3, and confirmed the dominance of Gammaproteobacteria. Our study stresses and visualizes the role of kitchen sponges as microbiological hot spots in the BE, with the capability to collect and spread bacteria with a probable pathogenic potential.
Collapse
Affiliation(s)
- Massimiliano Cardinale
- Institute of Applied Microbiology, Research Center for BioSystems, Land Use, and Nutrition (IFZ), Justus-Liebig-University Giessen, Giessen, Germany
| | - Dominik Kaiser
- Faculty of Medical and Life Sciences, Institute of Precision Medicine (IPM), Microbiology and Hygiene Group, Furtwangen University, Villingen-Schwenningen, Germany
| | - Tillmann Lueders
- Institute of Groundwater Ecology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - Sylvia Schnell
- Institute of Applied Microbiology, Research Center for BioSystems, Land Use, and Nutrition (IFZ), Justus-Liebig-University Giessen, Giessen, Germany
| | - Markus Egert
- Faculty of Medical and Life Sciences, Institute of Precision Medicine (IPM), Microbiology and Hygiene Group, Furtwangen University, Villingen-Schwenningen, Germany.
| |
Collapse
|
23
|
Lee WS, Hsueh PR, Yu FL, Chen FL, Hsieh TC, Ou TY. Moraxella osloensis bacteremia complicating with severe pneumonia in a patient with lung cancer. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2017; 50:395-396. [DOI: 10.1016/j.jmii.2015.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/14/2015] [Accepted: 03/23/2015] [Indexed: 11/25/2022]
|
24
|
Kao C, Szymczak W, Munjal I. Meningitis due to Moraxella nonliquefaciens in a paediatric patient: a case report and review of the literature. JMM Case Rep 2017; 4:e005086. [PMID: 28348808 PMCID: PMC5361638 DOI: 10.1099/jmmcr.0.005086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/01/2017] [Indexed: 11/18/2022] Open
Abstract
Introduction.Moraxella nonliquefaciens is an unusual organism to be isolated from cerebral spinal fluid (CSF) and there exists only one case report of M. nonliquefaciens meningitis from a neonate. Moraxella species normally exist as part of the human upper respiratory tract flora and rarely cause invasive human disease. There are only a handful of case reports implicating the organism as a cause of endocarditis, bacteraemia, septic arthritis and endophthalmitis. Identification to the species level based on routine laboratory techniques has been challenging, with final identification often made through 16S rRNA sequencing. With the use of a newer diagnostic tool, matrix-assisted laser desorption ionization-time of flight (MALDI-TOF) MS, we were able to rapidly identify the organism and initiate appropriate treatment. Case presentation. We present a rare care of M. nonliquefaciens meningitis in a paediatric patient with an underlying cranial anatomical defect due to Crouzon syndrome. She had been admitted to hospital 3 months previously with Streptococcus pneumoniae meningitis and mastoiditis, and returned to the emergency department with meningismus. CSF culture grew M. nonliquefaciens. She was treated with ceftriaxone with rapid improvement and eventually was taken for endoscopic surgical repair of a right encephalocele defect. Conclusion. The use of MALDI-TOF MS allowed for the rapid identification of the organism. The patient recovered with appropriate antimicrobial therapy and eventual surgical correction. An underlying anatomical defect should be considered in all patients who present with meningitis due to this unusual organism.
Collapse
Affiliation(s)
- Carol Kao
- Department of Pediatrics, Montefiore Medical Center, Albert Einstein College of Medicine , 111 E 210th St, Bronx, NY 10467 , USA
| | - Wendy Szymczak
- Department of Pathology, Montefiore Medical Center, Albert Einstein College of Medicine , 111 E 210th St, Bronx, NY 10467 , USA
| | - Iona Munjal
- Department of Pediatrics, Montefiore Medical Center, Albert Einstein College of Medicine , 111 E 210th St, Bronx, NY 10467 , USA
| |
Collapse
|
25
|
Fox-Lewis A, Coltart G, Rice S, Sen R, Gourtsoyannis Y, Hyare H, Gupta RK. Extensive subclinical sinusitis leading to Moraxella osloensis meningitis. IDCases 2016; 6:39-42. [PMID: 27695673 PMCID: PMC5043396 DOI: 10.1016/j.idcr.2016.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 08/19/2016] [Accepted: 08/19/2016] [Indexed: 12/03/2022] Open
Abstract
We report a case of a 31 year old male with extensive subclinical sinusitis leading to erosion in the cribriform plate and subsequent meningitis caused by the organism Moraxella osloensis. The patient presented to the emergency department with rapid onset confusion, neck stiffness and headache. Inflammatory markers, renal and liver function, and a chest radiograph were all normal. CT Head showed extensive polyp disease in the paranasal sinuses with expansion of the left frontal sinus and CT Sinuses revealed an area of low attenuation in the cribriform plate consistent with bony erosion. MRI Head showed thick loculated sinus inflammation. Lumbar puncture yielded CSF with a high white cell count of predominantly mononuclear cells, no visible organisms and an elevated protein. CSF microscopy, culture and viral PCR were not diagnostic, and so the CSF was sent for 16S rDNA PCR screening, which identified the rDNA of Moraxella osloensis. Moraxella osloensis is a rare cause of bacterial meningitis, with only a few reported cases. This case illustrates that sinusitis, while a common condition, when severe can predispose to intracranial infection with atypical and low virulence organisms such as Moraxella species, which do not commonly cause invasive CNS disease. This case represents the first case of Moraxella osloensis meningitis reported from the United Kingdom.
Collapse
Affiliation(s)
- A Fox-Lewis
- Division of Infection, University College London Hospital NHS Foundation Trust, London, UK
| | - G Coltart
- Division of Infection, University College London Hospital NHS Foundation Trust, London, UK
| | - S Rice
- Radiology Department, University College London Hospital NHS Foundation Trust, London, UK
| | - R Sen
- Division of Infection, University College London Hospital NHS Foundation Trust, London, UK
| | - Y Gourtsoyannis
- Division of Infection, University College London Hospital NHS Foundation Trust, London, UK
| | - H Hyare
- Radiology Department, University College London Hospital NHS Foundation Trust, London, UK
| | - R K Gupta
- Division of Infection, University College London Hospital NHS Foundation Trust, London, UK; Department of Infection, University College London, London, UK
| |
Collapse
|
26
|
Saliou P, Le Bars H, Fournier G, Baron R. [Microbiological evaluation of cystoscope reprocessing at Brest university hospital from January 2007 through December 2014]. Prog Urol 2015; 26:103-7. [PMID: 26638802 DOI: 10.1016/j.purol.2015.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 10/05/2015] [Accepted: 10/30/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE Flexible cystoscopes are high temperature sensitive devices that must undergo high-level disinfection according to Spaulding classification. The objective of this study is to provide epidemiological data on the monitoring of microbiological quality of cystoscopes used in a teaching hospital, in order to determine the compliance rate of disinfection and to describe the main identified microorganisms. MATERIAL Prospective study of all the results of microbiological samples taken for 8 years at the Brest teaching hospital. The analysis results were interpreted according to the ministerial recommendations. RESULTS During the study, 87 microbiological tests were performed. The rate of non-compliant samples was 19.5% (17/87). This rate reached 24.5% (12/49) of the programmed controls. The microorganisms identified were present in small amounts, corresponding mainly to bacteria from the environment. CONCLUSION The rate of non-compliance of the microbiological tests performed on cystoscopes is relatively high (19.5%), but the infectious risk seems limited. Hidden microorganisms are present in small quantities and identified germs are not known to be responsible for urinary tract infections. Educating professionals responsible for cystoscopes reprocessing and conducting regular audits may help to ensure a good level of cystoscope disinfection.
Collapse
Affiliation(s)
- P Saliou
- Équipe opérationnelle d'hygiène, service d'hygiène hospitalière, CHRU Morvan, 2, avenue Foch, 29200 Brest, France.
| | - H Le Bars
- Département de microbiologie, CHRU de Brest, 29200 Brest, France
| | - G Fournier
- Service de chirurgie urologique, CHRU de Brest, 29200 Brest, France; Université de Bretagne occidentale, 29200 Brest, France
| | - R Baron
- Équipe opérationnelle d'hygiène, service d'hygiène hospitalière, CHRU Morvan, 2, avenue Foch, 29200 Brest, France; Département de microbiologie, CHRU de Brest, 29200 Brest, France
| |
Collapse
|
27
|
Minami K, Higuchi T, Cho Y, Koike Y, Takeuchi K, Kubota N, Hidaka E, Horiuchi A, Kawakami Y. A Pediatric Case of Bacteremia and Possible Cholecystitis Due to Moraxella osloensis. Jpn J Infect Dis 2015; 68:324-5. [PMID: 25720646 DOI: 10.7883/yoken.jjid.2014.375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We encountered a pediatric case of bacteremia and possible cholecystitis due to Moraxella osloensis that was treated successfully. We confirmed the diagnosis with the presence of a high serum titer of the antibody to the organism. Furthermore, 16S rRNA sequencing was performed to identify the bacteria.
Collapse
Affiliation(s)
- Kisei Minami
- Department of General Pediatrics, Nagano Children's Hospital
| | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Sung JY, Hong SK, Kim EC. The first Korean case of Moraxella osloensis bacteremia in a patient with acute myeloid leukemia. Ann Lab Med 2014; 34:256-8. [PMID: 24790917 PMCID: PMC3999328 DOI: 10.3343/alm.2014.34.3.256] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Accepted: 02/13/2014] [Indexed: 11/19/2022] Open
Affiliation(s)
- Ji Yeon Sung
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Korea
| | - Sung Kuk Hong
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Korea
| | - Eui-Chong Kim
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Korea
| |
Collapse
|
29
|
Piomiositis por Moraxella osloensis. An Pediatr (Barc) 2014; 80:e48-9. [DOI: 10.1016/j.anpedi.2013.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 05/06/2013] [Accepted: 05/13/2013] [Indexed: 11/18/2022] Open
|
30
|
Haag H, Locher F, Nolte O. Molecular diagnosis of microbial aetiologies using SepsiTest™ in the daily routine of a diagnostic laboratory. Diagn Microbiol Infect Dis 2013; 76:413-8. [PMID: 23747029 DOI: 10.1016/j.diagmicrobio.2013.04.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 04/19/2013] [Accepted: 04/29/2013] [Indexed: 11/17/2022]
Abstract
A universal PCR and sequencing test, SepsiTest™ (Molzym, Germany) was evaluated for its applicability during daily diagnostic routine in a privately operated laboratory. In total, 96 specimens originating from 66 patients under suspect of infectious endocarditis, infections of joints, encephalitis/meningitis, systemic infections and infections of unknown genesis were PCR analysed and compared to culture results. Samples comprised cultured and non-cultured blood, synovial fluid, synovial tissue, heart valves, pacemakers, spinal tissue, cerebrospinal fluid, and swabs. PCR and culture were concordant in 26 negative and 8 positive cases (51.5%). A group of 25 patients was culture-negative but PCR-positive (37.9%). In at least 14 of these, common and/or rare aetiologies were identified, while for 4 patients the results of 16S PCR could not be unequivocally linked with the underlying disease. Benefits and limitations of the molecular test are discussed with special emphasis on technical and economic issues. In conclusion, SepsiTest™ proved to be a valuable tool for the diagnosis of aetiologies, particularly in cases of culture-negative patients who are under strong suspicion for an infection.
Collapse
Affiliation(s)
- Heike Haag
- Labor Dr. Brunner, Mainaustraße 48 a/b, DE-78464, Konstanz, Germany
| | | | | |
Collapse
|
31
|
Davenport AC, Mascarelli PE, Maggi RG, Breitschwerdt EB. Phylogenetic diversity of bacteria isolated from sick dogs using the BAPGM enrichment culture platform. J Vet Intern Med 2013; 27:854-61. [PMID: 23647339 DOI: 10.1111/jvim.12094] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 02/19/2013] [Accepted: 03/13/2013] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Bartonella alpha-Proteobacteria growth medium (BAPGM) enrichment culture has proven useful for documenting Bartonella species infection and has facilitated growth of other fastidious bacteria from human samples. PURPOSE To report non-Bartonella bacterial isolates obtained from canine samples cultured using BAPGM enrichment culture. ANIMALS Between 2004 and 2008, 695 specimens from 513 dogs were tested by the NCSU-IPRL using the BAPGM enrichment culture. Over the same period of time, blood samples from 270 dogs were cultured by the NCSU-CML using Bactec-Plus Aerobic/F media. METHODS BAPGM isolates were characterized using Bartonella genus primers and 16S rDNA primers followed by DNA sequencing. NCSU medical records were retrospectively reviewed. Blood culture results from the NCSU-CML were compared with BAPGM blood culture results. RESULTS Seventy-nine non-Bartonella isolates were obtained from 69/513 dogs. The most commonly isolated phylum was Proteobacteria (48.1%) with alpha-Proteobacteria being the most commonly isolated class. Staphylococcus and Sphingomonas were the most commonly isolated genera. The majority of the remaining isolates were bacteria that are rarely isolated from canine samples. Comparison of NCSU-CML and IPRL (BAPGM) blood culture isolates showed alpha-Proteobacteria were isolated more often from BAPGM. CONCLUSIONS AND CLINICAL IMPORTANCE Use of insect cell culture enrichment medium, such as BAPGM, appears to enhance the growth of alpha-Proteobacteria, but also results in isolation of non-alpha-Proteobacteria from sick dogs. Future studies are needed to elucidate the utility of BAPGM and other "nonconventional" growth media and methods for isolation of fastidious organisms and to determine if these organisms play a causal role in disease development.
Collapse
Affiliation(s)
- A C Davenport
- Intracellular Pathogens Research Laboratory, Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27607, USA
| | | | | | | |
Collapse
|
32
|
Ballal M, Martena S. First case report of Moraxella osloensis diarrhea in a hemolytic uremic syndrome/acute renal failure child from rural coastal India-Manipal, Karnataka. Indian J Pediatr 2013; 80:255-7. [PMID: 22231773 DOI: 10.1007/s12098-011-0672-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Accepted: 12/21/2011] [Indexed: 11/25/2022]
Abstract
The authors report a rare case of diarrhea caused by Moraxella osloensis in a pediatric child with Hemolytic Uremic Syndrome/Acute Renal Failure (HUS/ARF). A 6-y-old boy was referred to the Pediatric Unit with a 3 d history of bloody diarrhea with mucus and fever and decreased urine output for 6 d. Microbiological investigations were done as per CLSI guidelines. His diarrhea, and the subsequent renal failure resolved with appropriate treatment. To the best of authors' knowledge and pubmed search, this is the first case of M. osloensis causing diarrhea in a HUS/ARF pediatric patient reported from India-Manipal.
Collapse
Affiliation(s)
- Mamatha Ballal
- Department of Clinical Microbiology and Immunology, KMC-International Centre, Manipal 576104, India.
| | | |
Collapse
|
33
|
Hadano Y, Ito K, Suzuki J, Kawamura I, Kurai H, Ohkusu K. Moraxella osloensis: an unusual cause of central venous catheter infection in a cancer patient. Int J Gen Med 2012; 5:875-7. [PMID: 23109812 PMCID: PMC3479945 DOI: 10.2147/ijgm.s36919] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Moraxella osloensis is a rare causative organism of infections in humans, with most cases reported in cancer patients. We report the case of a 67-year-old Japanese man with advanced cancer of the pancreatic head and multiple liver metastases who developed fever with chills. Blood culture was found to be positive for Gram-negative bacilli that were aerobic, oxidase-positive, and catalase-positive. M. osloensis was identified by 16 rRNA gene sequencing. Prompt control of the infection was achieved by treatment with cefepime for 14 days, without the need for removal of the central venous catheter.
Collapse
Affiliation(s)
- Yoshiro Hadano
- Division of Infectious Diseases, Shizuoka Cancer Center, Shizuoka
| | | | | | | | | | | |
Collapse
|
34
|
Dien Bard J, Lewinski M, Summanen PH, Deville JG. Sepsis with prolonged hypotension due to Moraxella osloensis in a non-immunocompromised child. J Med Microbiol 2010; 60:138-141. [PMID: 20829400 DOI: 10.1099/jmm.0.016378-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
We report a case of septicaemia with prolonged, refractory hypotension related to Moraxella osloensis isolated in a non-immunocompromised paediatric patient.
Collapse
Affiliation(s)
- Jennifer Dien Bard
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles (UCLA), Los Angeles, CA, USA
| | - Michael Lewinski
- University of California Los Angeles Medical Center, Los Angeles, CA, USA.,Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles (UCLA), Los Angeles, CA, USA
| | | | - Jaime G Deville
- Department of Pediatrics, David Geffen School of Medicine, University of California Los Angeles (UCLA), 10833 Le Conte Avenue, MDCC 22-442, Los Angeles, CA 90095-1752, USA
| |
Collapse
|
35
|
Roh KH, Kim CK, Koh E, Kim MS, Yong D, Park SC, Lee K, Chong Y. Three cases of Moraxella osloensis meningitis: a difficult experience in species identification and determination of clinical significance. J Korean Med Sci 2010; 25:501-4. [PMID: 20191057 PMCID: PMC2826726 DOI: 10.3346/jkms.2010.25.3.501] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2008] [Accepted: 11/11/2008] [Indexed: 11/20/2022] Open
Abstract
We had three cases of Moraxella osloensis meningitis. The species identification was impossible by conventional and commercial phenotypic tests. However, we could identify the species using the 16S rRNA gene sequencing. Determination of clinical significance was difficult in one patient. All three patients recovered by appropriate antimicrobial therapy.
Collapse
Affiliation(s)
- Kyoung Ho Roh
- Department of Laboratory Medicine, Korea University College of Medicine, Seoul, Korea
| | - Chang Ki Kim
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Eunmi Koh
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Myung Sook Kim
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Dongeun Yong
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Chul Park
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Kyungwon Lee
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Yunsop Chong
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
| |
Collapse
|
36
|
Lacson A, Takagishi J, Barness L, Gilbert-Barness E. Fifteen-month-old infant with vomiting, respiratory distress, and tachypnea. Fetal Pediatr Pathol 2009; 28:55-68. [PMID: 19241237 DOI: 10.1080/15513810802679597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- A Lacson
- Division of Pediatric Pathology, Department of Laboratory Medicine and Pathology, University of Alberta, Stollery Children's Hospital, Capital Health, Edmonton, Alberta, Canada
| | | | | | | |
Collapse
|
37
|
Sifri CD, Brassinga AKC, Flohr T, Kinchen JM, Hazen KC, Sawyer RG, Pruett TL, Bonatti H. Moraxella osloensisbacteremia in a kidney transplant recipient. Transpl Int 2008; 21:1011-3. [DOI: 10.1111/j.1432-2277.2008.00727.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
38
|
|
39
|
Affiliation(s)
- Andrew Walls
- University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Ellen Wald
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| |
Collapse
|