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Kósa K, Vincze S, Veres-Balajti I, Bába ÉB. The Pendulum Swings Both Ways: Evidence for U-Shaped Association between Sleep Duration and Mental Health Outcomes. Int J Environ Res Public Health 2023; 20:ijerph20095650. [PMID: 37174169 PMCID: PMC10178027 DOI: 10.3390/ijerph20095650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/19/2023] [Accepted: 04/07/2023] [Indexed: 05/15/2023]
Abstract
Short sleep duration is a known risk to health, but less certain is the impact of longer sleep duration on various measures of health. We investigated the relationship between sleep duration and mental health outcomes in a cross-sectional survey conducted on a homogenous sample of healthy governmental employees (N = 1212). Data on sleep duration, subjective health, psychological stress, sense of coherence, life satisfaction and work ability along with sociodemographic data were collected. Sleep duration was significantly longer, and mental health outcomes and work ability were significantly better among those in at least good subjective health. Fitting mental health outcomes on sleep duration suggested a quadratic or fractional polynomial function, therefore these were tested and the best-fitting models were selected. Longer than 8 h of sleep duration was associated with a decreasing sense of coherence and decreasing work ability. However, psychological stress and life satisfaction were positively impacted by more than 8 h of sleep. Sleep duration likely has an optimum range for health, similar to other variables reflecting homeostatic functions. However, this is difficult to prove due to the left-skewed distribution of sleep duration.
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Affiliation(s)
- Karolina Kósa
- Department of Behavioural Sciences, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Szilvia Vincze
- Department of Sectoral Economics and Methodology, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary
| | - Ilona Veres-Balajti
- Department of Physiotherapy, Faculty of Health Sciences, University of Debrecen, 4032 Debrecen, Hungary
| | - Éva Bácsné Bába
- Department of Sports Economy and Management, Faculty of Economics and Business, University of Debrecen, 4032 Debrecen, Hungary
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Kósa K, Katona C, Bíró É, Vincze S. Vocational training of health mediators of primary care teams improves their sense of coherence. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac131.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
A Primary Care Model Programme had been implemented in Hungary between 2013-2017 in which group practices were established that employed - among others - nonprofessional health workers (health mediators, similar to community health workers) to facilitate access for the most disadvantaged population groups. The health of mediators, themselves mostly disadvantaged ethnic Roma, was monitored every odd year of the Programme.
Methods
A repeated cross-sectional health interview survey had been implemented inviting all health mediators who were employed at the time of the survey. The same questionnaire was used in all 3 surveys with items from the European Health Interview Survey 2009 and validated versions of other scales.
Results
Positive changes occurred in the health status of mediators during 5 years of follow-up. Significant improvement in mental health occurred among those who completed on-the-job vocational training. By 2017, significant increase in sense of coherence was observed among those who obtained vocational qualification as opposed to those who did not. The proportion of highly stressed mediators showed a significant increase among those with no vocational training. Improvement was detected in all mediators in health awareness, dysfunctional attitudes, psychological stress and smoking prevalence.
Conclusions
Significant improvement in mental status among those who obtained on-the-job vocational qualification were observed during follow-up of ethnic Roma health mediators in the programme in which they were equal members of the primary health care team. Employment of health mediators in primary care teams not only contributed to improving access to care for disadvantaged groups but also improved the mental health of mediators themselves.
Key messages
• Nonprofessional health mediators are important members of primary care teams servicing disadvantaged populations.
• Significant improvement in mental status during 5 years of follow-up occurred among Roma health mediators who received vocational training and were equal members of primary health care teams.
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Affiliation(s)
- K Kósa
- Department of Behavioral Sciences, Faculty of Medicine, University of Debrecen , Debrecen, Hungary
| | - C Katona
- Department of Behavioral Sciences, Faculty of Medicine, University of Debrecen , Debrecen, Hungary
| | - É Bíró
- Department of Preventive Medicine, University of Debrecen , Debrecen, Hungary
| | - S Vincze
- Department of Economics and Methodology, University of Debrecen , Debrecen, Hungary
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Katona C, Bíró É, Vincze S, Kósa K. On-the-job vocational training of nonprofessional ethnic health workers of a primary health care team improves their sense of coherence. Hum Resour Health 2022; 20:17. [PMID: 35130929 PMCID: PMC8822812 DOI: 10.1186/s12960-021-00690-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 11/12/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES A Primary Care Model Programme had been implemented in Hungary between 2013 and 2017 in which group practices were established that employed-among others-nonprofessional health workers (health mediators, similar to community health workers) to facilitate access for the most disadvantaged population groups. The health of mediators, themselves mostly disadvantaged ethnic Roma, was monitored every odd year of the Programme. METHODS A repeated cross-sectional health interview survey had been implemented inviting all health mediators who were employed at the time of the survey. The same questionnaire was used in all 3 surveys with items from the European Health Interview Survey 2009 and validated versions of other scales. RESULTS Positive changes occurred in the health status of mediators during 5 years of follow-up. Significant improvement in mental health occurred among those who completed on-the-job vocational training. By 2017, significant increase in sense of coherence was observed among those who obtained vocational qualification as opposed to those who did not. The proportion of highly stressed mediators showed a significant increase among those with no vocational training. Improvement was detected in all mediators in health awareness, dysfunctional attitudes, psychological stress and smoking prevalence. CONCLUSIONS Significant improvement in mental status among those who obtained on-the-job vocational qualification were observed during follow-up of ethnic Roma health mediators in the programme in which they were equal members of the primary health care team. Employment of health mediators in primary care teams not only contributed to improving access to care for disadvantaged groups, but also improved the mental health of mediators themselves.
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Affiliation(s)
- Cintia Katona
- Department of Behavioural Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Bíró
- Department of Preventive Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Szilvia Vincze
- Department of Sectoral Economics and Methodology, Faculty of Economics and Business, University of Debrecen, Debrecen, Hungary
| | - Karolina Kósa
- Department of Behavioural Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Kósa K, Vincze S, Veres-Balajti I, Bácsné Bába É. Leadership position is protective for health among non-manual workers. Orv Hetil 2021; 162:1172-1179. [PMID: 34274919 DOI: 10.1556/650.2021.32111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 01/06/2021] [Indexed: 11/19/2022]
Abstract
Összefoglaló. Bevezetés: A munkavégzés fontos egészségprotektív tényező, de munkahelyi pszichoszociális kockázatokkal jár, amelyeknek az egészségi állapottal való összefüggéseire az elmúlt évtizedekben derült fény. Célkitűzés: A vizsgálat célja a munkahelyi beosztás és az egészségi állapot közti összefüggés vizsgálata volt olyan, viszonylag homogén mintában, amelynek tagjait közintézmények dolgozói adták. Módszer: Kérdőíves egészségfelmérés történt online adatgyűjtéssel, keresztmetszeti elrendezésben, egy megyeszékhely két közintézményében alkalmazottak körében. A kérdőív demográfiai, az egészségi állapotra, az egészségmagatartásra és a munkavégzésre, köztük a munkahelyi beosztásra vonatkozó, validált kérdéseket tartalmazott. Az adatelemzés beosztási kategóriák szerint két (vezető vs. beosztott), illetve három (vezető, diplomás beosztott, nem diplomás beosztott) rétegben történt. Eredmények: A vizsgált mutatók közül a szubjektív egészség, az élettel való elégedettség, a koherenciaérzés, a túlzott mértékű pszichés stressz, a munkahelyi hiányzás, a munkahelyi és magánéleti társas támogatottság a vezető beosztásban dolgozók körében volt a legkedvezőbb. A vizsgált indikátorok közül csak a munkaképesség nem különbözött beosztás szerint, és csak az alvásidő volt szignifikánsan kedvezőtlenebb (rövidebb) a vezetők körében a beosztottakhoz képest. A háromrétegű elemzés szerint a legkedvezőtlenebb mutatók a nem diplomás beosztottakra voltak jellemzőek. Eredményeink szerint a vezető beosztásban dolgozók egészségi állapota és mentális egészsége kedvezőbb, mint a beosztottaké. Következtetés: A munkahelyi beosztás az egyéni társadalmi-gazdasági helyzet mellett a munkahelyi pszichoszociális stressz mértékével is összefüggésben van, ezért a munkahelyi stressz vizsgálata során érdemes beosztás szerinti elemzést is végezni. A munkahelyi pszichoszociális stressz nyomon követése minden munkahelyen ajánlott, amelynek egyszerű módja az alkalmazási idő és a hiányzott napok számának létszámarányos és beosztásra stratifikált, idősoros nyomon követése. Orv Hetil. 2021; 162(29): 1172-1179. SUMMARY INTRODUCTION Employment is an important health protective factor but also entails workplace psychosocial risks with multiple impacts on health. OBJECTIVE The present study aimed at examining the association between employment position and subjective health in a relatively homogenous sample of public servants with mostly tertiary degrees. METHOD Online health survey was conducted among employees of two large public institutes in a large city in Hungary. The questionnaire contained items on demographic data, health status, mental health, health behaviour, and work-related questions including employment position (leadership). Data analysis was carried out by employment position in two (manager, subordinate) and three (manager, subordinate with college degree, subordinate with no college degree) strata. RESULTS Subjective health, satisfaction with life, sense of coherence, pathological stress, sickness absence, social support in the workplace and private life were most favourable among those in leadership position. Work ability did not differ by employment position, but sleep time was significantly less favourable (shorter) among leaders compared to subordinates. Subordinates with no college degree had the worst measures of health. CONCLUSION Employment position is related to individual socioeconomic status and workplace psychosocial stress, therefore research on workplace stress should include employment level as a potential confounder. Psychosocial stress at workplaces should be monitored for which various recommendations are available. The simplest method is to monitor mid- and long-term turnover and sickness absence stratified for employment position and proportionate to the workforce. Orv Hetil. 2021; 162(29): 1172-1179.
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Affiliation(s)
- Karolina Kósa
- 1 Debreceni Egyetem, Általános Orvostudományi Kar, Magatartástudományi Intézet, Debrecen, Egyetem tér 1., 4032
| | - Szilvia Vincze
- 2 Debreceni Egyetem, Gazdaságtudományi Kar, Statisztika és Módszertani Intézet, Debrecen
| | | | - Éva Bácsné Bába
- 4 Debreceni Egyetem, Gazdaságtudományi Kar, Sportgazdasági és -menedzsment Intézet, Debrecen
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Lüth S, Halbedel S, Rosner B, Wilking H, Holzer A, Roedel A, Dieckmann R, Vincze S, Prager R, Flieger A, Al Dahouk S, Kleta S. Backtracking and forward checking of human listeriosis clusters identified a multiclonal outbreak linked to Listeria monocytogenes in meat products of a single producer. Emerg Microbes Infect 2021; 9:1600-1608. [PMID: 32657219 PMCID: PMC7473094 DOI: 10.1080/22221751.2020.1784044] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Due to its high case fatality rate, foodborne listeriosis is considered a major public health concern worldwide. We describe one of the largest listeriosis outbreaks in Germany with 83 cases of invasive listeriosis between 2013 and 2018. As part of the outbreak investigation, we identified a highly diverse Listeria monocytogenes population at a single producer of ready-to-eat meat products. Strikingly, the extensive sampling after identification of a first match between a cluster of clinical isolates and a food isolate allowed for a linkage between this producer and a second, previously unmatched cluster of clinical isolates. Bacterial persistence in the processing plant and indications of cross-contamination events explained long-term contamination of food that led to the protracted outbreak. Based on screening for virulence factors, a pathogenic phenotype could not be ruled out for other strains circulating in the plant, suggesting that the outbreak could have been even larger. As most isolates were sensitive to common biocides used in the plant, hard to clean niches in the production line may have played a major role in the consolidation of the contamination. Our study demonstrates how important it is to search for the origin of infection when cases of illness have occurred (backtracking), but also clearly highlights that it is equally important to check whether a contamination at food or production level has caused disease (forward checking). Only through this two-sided control strategy, foodborne disease outbreaks such as listeriosis can be minimized, which could be a real improvement for public health.
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Affiliation(s)
- Stefanie Lüth
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany.,Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Sven Halbedel
- Department of Infectious Diseases, Robert Koch-Institute, Wernigerode, Germany
| | - Bettina Rosner
- Department of Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
| | - Hendrik Wilking
- Department of Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
| | - Alexandra Holzer
- Department of Infectious Disease Epidemiology, Robert Koch-Institute, Berlin, Germany
| | - Alice Roedel
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Ralf Dieckmann
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Szilvia Vincze
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany
| | - Rita Prager
- Department of Infectious Diseases, Robert Koch-Institute, Wernigerode, Germany
| | - Antje Flieger
- Department of Infectious Diseases, Robert Koch-Institute, Wernigerode, Germany
| | - Sascha Al Dahouk
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany.,Department of Internal Medicine III, RWTH Aachen University Hospital, Aachen, Germany
| | - Sylvia Kleta
- Department of Biological Safety, German Federal Institute for Risk Assessment, Berlin, Germany
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Lemoine L, Dieckmann R, Al Dahouk S, Vincze S, Luch A, Tralau T. Microbially competent 3D skin: a test system that reveals insight into host-microbe interactions and their potential toxicological impact. Arch Toxicol 2020; 94:3487-3502. [PMID: 32681188 PMCID: PMC7502063 DOI: 10.1007/s00204-020-02841-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 07/09/2020] [Indexed: 02/06/2023]
Abstract
The skin`s microbiome is predominantly commensalic, harbouring a metabolic potential far exceeding that of its host. While there is clear evidence that bacteria-dependent metabolism of pollutants modulates the toxicity for the host there is still a lack of models for investigating causality of microbiome-associated pathophysiology or toxicity. We now report on a biologically characterised microbial-skin tissue co-culture that allows studying microbe-host interactions for extended periods of time in situ. The system is based on a commercially available 3D skin model. In a proof-of-concept, this model was colonised with single and mixed cultures of two selected skin commensals. Two different methods were used to quantify the bacteria on the surface of the skin models. While Micrococcus luteus established a stable microbial-skin tissue co-culture, Pseudomonas oleovorans maintained slow continuous growth over the 8-day cultivation period. A detailed skin transcriptome analysis showed bacterial colonisation leading to up to 3318 significant changes. Additionally, FACS, ELISA and Western blot analyses were carried out to analyse secretion of cytokines and growth factors. Changes found in colonised skin varied depending on the bacterial species used and comprised immunomodulatory functions, such as secretion of IL-1α/β, Il-6, antimicrobial peptides and increased gene transcription of IL-10 and TLR2. The colonisation also influenced the secretion of growth factors such as VFGFA and FGF2. Notably, many of these changes have already previously been associated with the presence of skin commensals. Concomitantly, the model gained first insights on the microbiome's influence on skin xenobiotic metabolism (i.e., CYP1A1, CYP1B1 and CYP2D6) and olfactory receptor expression. The system provides urgently needed experimental access for assessing the toxicological impact of microbiome-associated xenobiotic metabolism in situ.
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Affiliation(s)
- Lisa Lemoine
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany.
| | - Ralf Dieckmann
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Sascha Al Dahouk
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Szilvia Vincze
- Department of Biological Safety, German Federal Institute for Risk Assessment (BfR), Diedersdorfer Weg 1, 12277, Berlin, Germany
| | - Andreas Luch
- Department of Chemical and Product Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
- Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Tewes Tralau
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
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Roedel A, Dieckmann R, Makarewicz O, Hartung A, Noll M, Pletz MW, Dahouk SA, Vincze S. Evaluation of a Newly Developed Vacuum Dried Microtiter Plate for Rapid Biocide Susceptibility Testing of Clinical Enterococcus Faecium Isolates. Microorganisms 2020; 8:E551. [PMID: 32290364 PMCID: PMC7232460 DOI: 10.3390/microorganisms8040551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/27/2022] Open
Abstract
We investigated the suitability of a newly developed biocide susceptibility test system based on microtiter plates containing vacuum dried biocides as a fast and reliable screening method. The evaluated substances included the cationic biocides benzalkonium chloride (BAC), chlorhexidine dihydrochloride (CHX), cetylpyridinium chloride, didecyldimethylammonium chloride, and octenidine dihydrochloride. Testing a selection of Escherichia coli and enterococci, the biocide microtiter plates provided results comparable to those obtained from broth microdilution according to ISO 20776-1. Broad MIC ranges allowed for testing gram-positive and gram-negative species with the same plate design. In the second part of our study, we applied the established method to analyze the susceptibility of 90 clinical Enterococcus faecium isolates from a German university hospital, as previous studies have indicated a link between reduced susceptibility to substances such as CHX and BAC and vancomycin resistance. We therefore determined MIC and minimum bactericidal concentrations (MBC) for 48 non-clonal vancomycin susceptible and 42 non-clonal vancomycin resistant isolates, but MIC95 and MBC95 were quite similar in both groups. Our easy to handle and ready to use test system enables the routine surveillance of bacterial tolerance towards disinfectants in hospitals. As a result, hygiene measures can be adapted and nosocomial infections controlled despite increasing prevalence of antibiotic-resistant bacteria.
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Affiliation(s)
- Alice Roedel
- German Federal Institute for Risk Assessment, Department of Biological Safety, 10589 Berlin, Germany
| | - Ralf Dieckmann
- German Federal Institute for Risk Assessment, Department of Biological Safety, 10589 Berlin, Germany
| | - Oliwia Makarewicz
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, 07747 Jena, Germany
- Research Campus Infectognostics, 07743 Jena, Germany
| | - Anita Hartung
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, 07747 Jena, Germany
- Research Campus Infectognostics, 07743 Jena, Germany
| | - Matthias Noll
- Institute for Bioanalysis, University of Applied Sciences and Arts, 96450 Coburg, Germany
| | - Mathias W Pletz
- Institute for Infectious Diseases and Infection Control, Jena University Hospital, 07747 Jena, Germany
- Research Campus Infectognostics, 07743 Jena, Germany
| | - Sascha Al Dahouk
- German Federal Institute for Risk Assessment, Department of Biological Safety, 10589 Berlin, Germany
- Department of Internal Medicine, RWTH Aachen University Hospital, 52074 Aachen, Germany
| | - Szilvia Vincze
- German Federal Institute for Risk Assessment, Department of Biological Safety, 10589 Berlin, Germany
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Noll M, Trunzer K, Vondran A, Vincze S, Dieckmann R, Al Dahouk S, Gold C. Benzalkonium Chloride Induces a VBNC State in Listeria monocytogenes. Microorganisms 2020; 8:microorganisms8020184. [PMID: 32012868 PMCID: PMC7074807 DOI: 10.3390/microorganisms8020184] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/14/2020] [Accepted: 01/23/2020] [Indexed: 02/07/2023] Open
Abstract
The objective of our study was to investigate the effects of benzalkonium chloride (BC) adaptation of L. monocytogenes on the susceptibility to antimicrobial agents and on the viable but non culturable (VBNC) state of the bacterial cells. We adapted L. monocytogenes SLCC2540 to BC by applying BC below minimum inhibitory concentration (MIC) to above minimum bactericidal concentration (MBC). The culturable fractions and the susceptibility of adapted and parental cells to BC were assessed. In addition, cell membrane permeability and glucose uptake were analyzed by multi parametric flow cytometry using the fluorescent agents SYTO9, propidium iodide, and 2-deoxy-2-[(7-nitro-2,1,3-benzoxadiazol-4-yl)amino]-D-glucose (2-NBDG). Adapted cells displayed a two-fold MIC increase of BC and reduced antibiotic susceptibility. At high BC concentrations, the decrease in the number of colony forming units was significantly lower in the population of adapted cells compared to parental cells. At the same time, the number of metabolically active cells with intact membranes was significantly higher than the number of culturable cells. Growth-independent viability assays revealed an adapted subpopulation after BC application that was not culturable, indicating increased abundance of viable but nonculturable (VBNC) cells. Moreover, adapted cells can outcompete non-adapted cells under sublethal concentrations of disinfectants, which may lead to novel public health risks.
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Affiliation(s)
- Matthias Noll
- Institute for Bioanalysis, Department of Applied Sciences, Coburg University of Applied Sciences and Arts, Friedrich-Streib-Straße 2, D-96450 Coburg, Germany; (K.T.); (A.V.); (C.G.)
- Correspondence: ; Tel.: +49-09561-317645
| | - Katharina Trunzer
- Institute for Bioanalysis, Department of Applied Sciences, Coburg University of Applied Sciences and Arts, Friedrich-Streib-Straße 2, D-96450 Coburg, Germany; (K.T.); (A.V.); (C.G.)
| | - Antje Vondran
- Institute for Bioanalysis, Department of Applied Sciences, Coburg University of Applied Sciences and Arts, Friedrich-Streib-Straße 2, D-96450 Coburg, Germany; (K.T.); (A.V.); (C.G.)
| | - Szilvia Vincze
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; (S.V.); (R.D.); (S.A.D.)
| | - Ralf Dieckmann
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; (S.V.); (R.D.); (S.A.D.)
| | - Sascha Al Dahouk
- German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; (S.V.); (R.D.); (S.A.D.)
| | - Carolin Gold
- Institute for Bioanalysis, Department of Applied Sciences, Coburg University of Applied Sciences and Arts, Friedrich-Streib-Straße 2, D-96450 Coburg, Germany; (K.T.); (A.V.); (C.G.)
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9
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Roedel A, Dieckmann R, Brendebach H, Hammerl JA, Kleta S, Noll M, Al Dahouk S, Vincze S. Biocide-Tolerant Listeria monocytogenes Isolates from German Food Production Plants Do Not Show Cross-Resistance to Clinically Relevant Antibiotics. Appl Environ Microbiol 2019; 85:e01253-19. [PMID: 31375490 PMCID: PMC6805086 DOI: 10.1128/aem.01253-19] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 07/24/2019] [Indexed: 01/02/2023] Open
Abstract
Contamination of food during processing is recognized as a main transmission route of Listeria monocytogenes To prevent microbial contamination, biocides are widely applied as disinfectants in food processing plants. However, there are concerns about the development of antimicrobial resistance in foodborne pathogens due to widespread biocide usage. In our study, 93 L. monocytogenes isolates from German food production facilities were (i) tested for biocide and antibiotic susceptibility using broth microdilution assays, (ii) analyzed for links between reduced biocide susceptibility and antibiotic resistance, and (iii) characterized by whole-genome sequencing, including the detection of genes coding for biocide tolerance, antibiotic resistance, and other virulence factors. Fifteen L. monocytogenes isolates were tolerant to benzalkonium chloride (BAC), and genes conferring BAC tolerance were found in 13 of them. Antibiotic resistance was not associated with biocide tolerance. BAC-tolerant isolates were assigned to 6 multilocus sequence type (MLST) clonal complexes, and most of them harbored internalin A pseudogenes with premature stop codons or deletions (n = 9). Our study demonstrated a high genetic diversity among the investigated isolates including genotypes that are frequently involved in human infections. Although in vitro adaptation studies to biocides have raised concerns about increasing cross-resistance to antibiotics, our results do not provide evidence for this phenomenon in field isolates.IMPORTANCE Foodborne pathogens such as L. monocytogenes can persist in food production environments for a long time, causing perennial outbreaks. Hence, bacterial pathogens are able to survive cleaning and disinfection procedures. Accordingly, they may be repeatedly exposed to sublethal concentrations of disinfectants, which might result in bacterial adaptation to these biocides. Furthermore, antibiotic coresistance and cross-resistance are known to evolve under biocide selection pressure in vitro Hence, antimicrobial tolerance seems to play a crucial role in the resilience and persistence of foodborne pathogens in the food chain and might reduce therapeutic options in infectious diseases.
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Affiliation(s)
- A Roedel
- German Federal Institute for Risk Assessment, Berlin, Germany
| | - R Dieckmann
- German Federal Institute for Risk Assessment, Berlin, Germany
| | - H Brendebach
- German Federal Institute for Risk Assessment, Berlin, Germany
| | - J A Hammerl
- German Federal Institute for Risk Assessment, Berlin, Germany
| | - S Kleta
- German Federal Institute for Risk Assessment, Berlin, Germany
| | - M Noll
- University of Applied Sciences and Arts, Institute for Bioanalysis, Coburg, Germany
| | - S Al Dahouk
- German Federal Institute for Risk Assessment, Berlin, Germany
| | - S Vincze
- German Federal Institute for Risk Assessment, Berlin, Germany
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10
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Schneider S, Salm F, Vincze S, Moeser A, Petruschke I, Schmücker K, Ludwig N, Hanke R, Schröder C, Gropmann A, Behnke M, Lübke-Becker A, Wieler LH, Hagel S, Pletz MW, Gensichen J, Gastmeier P. Perceptions and attitudes regarding antibiotic resistance in Germany: a cross-sectoral survey amongst physicians, veterinarians, farmers and the general public. J Antimicrob Chemother 2019; 73:1984-1988. [PMID: 29590400 DOI: 10.1093/jac/dky100] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 03/02/2018] [Indexed: 11/14/2022] Open
Abstract
Background Drivers of antibiotic (AB) resistance (ABR) include outpatient treatment, hospital care and animal husbandry. During the first phase of the One Health project RAI (Responsible Antibiotic Use via Information and Communication) surveys were conducted in these sectors. Objectives To compare perceptions and attitudes towards ABR among general practitioners (GPs), hospital physicians, veterinarians, pig farmers and the general public. Methods Cross-sectional questions on AB use and ABR were integrated in group-specific surveys of GPs, hospital physicians, veterinarians, pig farmers and the German general population. Results A total of 1789 participants (340 GPs, 170 hospital physicians, 215 pig farmers, 60 veterinarians and 1004 members of the public) responded. Each group tended to identify drivers of ABR as being from outside its own area of activity. Guidelines were shown to be an important information source for AB therapy for all prescriber groups, but the frequency of routine use differed (39% of GPs, 65% of hospital physicians and 53% of veterinarians). Regarding further information sources, hospital physicians preferred smartphone apps and e-learning, GPs preferred non-sponsored training and veterinarians preferred multidisciplinary networks and e-learning. Farmers were predominantly satisfied with existing solutions. Farmers had three times better basic knowledge of ABR and knew twice as many people with MDR organism problems than the general public. They also received information on ABR more often from their veterinarians than patients did from their doctors. Conclusions This study reveals considerable differences in perceptions and attitudes to ABR among the groups investigated. The results can help to tailor future interventions. Furthermore, they promote mutual understanding and thus support the One Health approach.
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Affiliation(s)
- Sandra Schneider
- Institute of Hygiene and Environmental Medicine, Charité University Medical Center Berlin, Hindenburgdamm 27, D-12203 Berlin, Germany
| | - Florian Salm
- Institute of Hygiene and Environmental Medicine, Charité University Medical Center Berlin, Hindenburgdamm 27, D-12203 Berlin, Germany
| | - Szilvia Vincze
- Institute of Microbiology and Epizootics, Department of Veterinary Medicine at the Freie Universität Berlin, Robert-von-Ostertag-Str. 7-13, D-14163 Berlin, Germany
| | - Anne Moeser
- Center for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
| | - Inga Petruschke
- Institute of General Practice and Family Medicine, Jena University Hospital, Bachstrasse 18, D-07743 Jena, Germany
| | - Katja Schmücker
- Institute of General Practice and Family Medicine, Jena University Hospital, Bachstrasse 18, D-07743 Jena, Germany
| | - Norman Ludwig
- Lindgrün GmbH, Cuxhavener Strasse 12, D-10555 Berlin, Germany
| | - Regina Hanke
- Institute of Hygiene and Environmental Medicine, Charité University Medical Center Berlin, Hindenburgdamm 27, D-12203 Berlin, Germany.,Lindgrün GmbH, Cuxhavener Strasse 12, D-10555 Berlin, Germany
| | - Christin Schröder
- Institute of Hygiene and Environmental Medicine, Charité University Medical Center Berlin, Hindenburgdamm 27, D-12203 Berlin, Germany
| | - Alexander Gropmann
- Institute of Hygiene and Environmental Medicine, Charité University Medical Center Berlin, Hindenburgdamm 27, D-12203 Berlin, Germany
| | - Michael Behnke
- Institute of Hygiene and Environmental Medicine, Charité University Medical Center Berlin, Hindenburgdamm 27, D-12203 Berlin, Germany
| | - Antina Lübke-Becker
- Institute of Microbiology and Epizootics, Department of Veterinary Medicine at the Freie Universität Berlin, Robert-von-Ostertag-Str. 7-13, D-14163 Berlin, Germany
| | - Lothar H Wieler
- Institute of Microbiology and Epizootics, Department of Veterinary Medicine at the Freie Universität Berlin, Robert-von-Ostertag-Str. 7-13, D-14163 Berlin, Germany.,Robert Koch Institute, PO Box 65 02 61, D-13302 Berlin, Germany
| | - Stefan Hagel
- Center for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
| | - Mathias W Pletz
- Center for Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
| | - Jochen Gensichen
- Institute of General Practice and Family Medicine, Jena University Hospital, Bachstrasse 18, D-07743 Jena, Germany
| | - Petra Gastmeier
- Institute of Hygiene and Environmental Medicine, Charité University Medical Center Berlin, Hindenburgdamm 27, D-12203 Berlin, Germany
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11
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Vincze S, Al Dahouk S, Dieckmann R. Microbiological Safety of Non-Food Products: What Can We Learn from the RAPEX Database? Int J Environ Res Public Health 2019; 16:ijerph16091599. [PMID: 31067693 PMCID: PMC6538994 DOI: 10.3390/ijerph16091599] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/03/2019] [Accepted: 05/03/2019] [Indexed: 01/04/2023]
Abstract
For consumer protection across borders, the European Union has established the rapid alert system for dangerous non-food products (RAPEX), with the overarching goal of preventing or limiting the sale and use of non-food products that present a serious risk for the health and safety of consumers. In our study, we comprehensively analyzed RAPEX notifications associated with products posing a microbiological risk from 2005 through 2017. Additional information was retrieved from national laboratory reports. A total of 243 microbiologically harmful consumer products triggered notifications in 23 out of 31 participating countries. About half of the products were reported by Spain, Germany, and Italy. Notifications mainly included contaminated toys, cosmetics, and chemical products. Depending on the notifying country, measures taken to prevent the spread of dangerous products were predominantly ordered either by public authorities or economic operators. The interval between microbiological diagnosis and the date of RAPEX notifications considerably varied between RAPEX member states, ranging between a few days and 82 weeks. The nature and extent of RAPEX usage substantially differed among member states, calling for harmonization and optimization. Slight modifications to RAPEX could help to systematically record microbiological hazards, which may improve the assessment of potential health risks due to contaminated non-food products.
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Affiliation(s)
- Szilvia Vincze
- Department of Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany.
| | - Sascha Al Dahouk
- Department of Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany.
| | - Ralf Dieckmann
- Department of Biological Safety, German Federal Institute for Risk Assessment, 10589 Berlin, Germany.
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Abstract
Antibiotic resistance is by far one of the most important health threats of our time. Only a global concerted effort of several disciplines based on the One-Health concept will help in slowing down this process and potentially mitigate the ruin of healthcare we have come to enjoy. In this review, we attempt to summarize the most basic and important topics that serve as good information tools to create Awareness. The Availability of antibiotics or the lack thereof is another significant factor that must be given thought, and finally because antibiotic resistance is a problem that will not go away, it is important to have Alternatives. Together, we have the 3As, essential concepts, in dealing with this growing and complex problem.
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Affiliation(s)
- Esther-Maria Antão
- 1Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie University Berlin, Robert-von-Ostertag Str. 7-13, 14163 Berlin, Germany.,2Robert-Koch-Institute, Nordufer 20, 13353 Berlin, Germany
| | - Szilvia Vincze
- 1Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie University Berlin, Robert-von-Ostertag Str. 7-13, 14163 Berlin, Germany.,4Department of Biological Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany
| | - Regina Hanke
- Lindgrün GmbH, Cuxhavener Str. 12, 10557 Berlin, Germany
| | - Lukas Klimmek
- Lindgrün GmbH, Cuxhavener Str. 12, 10557 Berlin, Germany
| | | | - Antina Lübke-Becker
- 1Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie University Berlin, Robert-von-Ostertag Str. 7-13, 14163 Berlin, Germany
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13
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Walther B, Janssen T, Gehlen H, Vincze S, Borchers K, Wieler LH, Barton AK, Lübke-Becker A. [Infection control and hygiene management in equine hospitals]. Berl Munch Tierarztl Wochenschr 2014; 127:486-497. [PMID: 25872258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
With the rising importance of nosocomial infections in equine hospitals, increased efforts with regard to biosecurity and infection control are necessary. This even more since nosocomial infections are often associated with multi-drug resistant pathogens. Consequently, the implementation of targeted prevention programs is essential. Since nosocomial infections are usually multifactorial events, realization of only a single measure is rarely effective to overcome nosocomial spread in clinical practice. Equine patients may be colonized at admission with multi-drug resistant pathogens such as methicillin resistant Staphylococcus aureus (MRSA) and/or extended spectrum beta lactamase-producing (ESBL-) Enterobacteriaceae. Regardless of their individual resistance properties, these bacteria are common and usually unnoticed colonizers of either the nasopharynx or the intestinal tract. Also viral diseases caused by equine herpesvirus 1 (EHV-1) and EHV-4 may reach a clinic by patients which are latently infected or in the incubation period. To prevent nosocomal outbreaks, achieve an interruption in the infection chain and to eradicate infectious agents from the hospital environment, a professional hospital management is necessary. This should be adapted to both the wide range of pathogens causing nosocomial infections and the individual needs of equine patients. Amongst others, this approach includes a risk classification of equine patients at admission and information/enlightenment of the animal owners at discharge. An efficient management of inpatients, a targeted hygiene management and clear responsibilities with respect to biosecurity together with a surveillance of nosocomial infections form the cornerstone of infection control in equine hospitals.
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Vincze S, Brandenburg AG, Espelage W, Stamm I, Wieler LH, Kopp PA, Lübke-Becker A, Walther B. Risk factors for MRSA infection in companion animals: results from a case-control study within Germany. Int J Med Microbiol 2014; 304:787-93. [PMID: 25130703 DOI: 10.1016/j.ijmm.2014.07.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Increasing numbers of companion animals suffering from infections with methicillin-resistant Staphylococcus aureus (MRSA) have been reported in the recent past. These infections are of particular concern because of the limited treatment options for MRSA and their transferability to humans. Since MRSA lineages isolated from infected companion animals often mirror typical human epidemic strains circulating in the same region, successful strategies to combat MRSA need strong and coordinated efforts from both, the human and the veterinary field according to the "One Health" concept. Hence, to identify potential risk factors related to MRSA infections in dogs, cats and horses, a case-control study was conducted, including data on 106 MRSA-infected animal patients as cases and 102 MSSA-infected animals as controls, originating from 155 different veterinary settings within Germany. Demographic data on animal patients, patient history and administration of antibiotics as well as practice/clinic specific parameters were assessed as putative risk factors. Multivariable logistic regression identified the following variables as risk factors for MRSA infection compared to MSSA infection: number of employees working at the veterinary setting (n>10; p<0.001), antibiotic treatment prior to sampling (systemic: p=0.002; local: p=0.049, both: p=0.011) and surgical site infection (p<0.001). Spa typing revealed predominantly clonal complexes well-known for hospital-associated lineages spreading in human health-care settings in Germany (CC5 and CC22) for isolates of dog and cat origin. CC398-MRSA dominated among equine isolates, a CC that was described as a nosocomial pathogen in equine clinical settings before. The identified risk factors and genotyping results are in accordance with numerous study outcomes from the field of human medicine and point towards reasonable problems with nosocomial spread of MRSA, especially within companion animal veterinary clinics. To define targeted infection control strategies against nosocomial pathogens, it is important to accomplish intervention studies addressing routes of transmission in companion animal veterinary settings.
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Affiliation(s)
- Szilvia Vincze
- Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie Universität Berlin, Berlin, Germany.
| | - Anja G Brandenburg
- Vet Med Labor GmbH, Division of IDEXX Laboratories, Ludwigsburg, Germany
| | - Werner Espelage
- Robert Koch Institute, Department for Infectious Disease Epidemiology, Berlin, Germany
| | - Ivonne Stamm
- Vet Med Labor GmbH, Division of IDEXX Laboratories, Ludwigsburg, Germany
| | - Lothar H Wieler
- Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie Universität Berlin, Berlin, Germany
| | - Peter A Kopp
- Vet Med Labor GmbH, Division of IDEXX Laboratories, Ludwigsburg, Germany
| | - Antina Lübke-Becker
- Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie Universität Berlin, Berlin, Germany
| | - Birgit Walther
- Centre for Infection Medicine, Institute of Microbiology and Epizootics, Freie Universität Berlin, Berlin, Germany
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Murugaiyan J, Walther B, Stamm I, Abou-Elnaga Y, Brueggemann-Schwarze S, Vincze S, Wieler LH, Lübke-Becker A, Semmler T, Roesler U. Species differentiation within the Staphylococcus intermedius group using a refined MALDI-TOF MS database. Clin Microbiol Infect 2014; 20:1007-15. [PMID: 24807701 DOI: 10.1111/1469-0691.12662] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/28/2014] [Accepted: 05/02/2014] [Indexed: 11/29/2022]
Abstract
Among coagulase-positive staphylococci of animal origin, the members of the Staphylococcus intermedius-group (SIG: S. intermedius, Staphylococcus pseudintermedius and Staphylococcus delphini) are important opportunistic pathogens in different animal hosts and occasionally in humans. However, the unambiguous species diagnosis of SIG is often challenging. Therefore, matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) -based SIG-identification with Bruker Microflex LT in combination with Biotyper 3.0 software (Bruker Daltonics, Bremen, Germany) was evaluated using (i) the original database content and (ii) the database after extension with distinct hierarchical clustered reference spectra for 60 SIG. A convenience sample comprising 200 isolates was used to compare both database performances. As a result, 17 isolates initially diagnosed as S. intermedius with the current content of the Bruker database were identified as S. pseudintermedius by applying the in-house reference spectra extended version. Furthermore, a significant improvement (average rise of log score value: 0.24) of the SIG identification score values was achieved, emphasizing that further sequence-based refinement of the Bruker database content allows improvement of MALDI-TOF MS-based identification.
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Affiliation(s)
- J Murugaiyan
- Institute of Animal Hygiene and Environmental Health, Centre for Infection Medicine, Freie Universität Berlin, Berlin, Germany
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Walther B, Wieler LH, Vincze S, Antão EM, Brandenburg A, Stamm I, Kopp PA, Kohn B, Semmler T, Lübke-Becker A. MRSA variant in companion animals. Emerg Infect Dis 2013; 18:2017-20. [PMID: 23171478 PMCID: PMC3557870 DOI: 10.3201/eid1812.120238] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Methicillin-resistant Staphylocoocus aureus (MRSA) harboring mecA(LGA251) has been isolated from humans and ruminants. Database screening identified this MRSA variant in cats, dogs, and a guinea pig in Germany during 2008-2011. The novel MRSA variant is not restricted to ruminants or humans, and contact with companion animals might pose a zoonotic risk.
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Affiliation(s)
- Birgit Walther
- Institute of Microbiology and Epizootics, Freie Universität Berlin, Berlin, Germany.
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17
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Vincze S, Paasch A, Walther B, Ruscher C, Lübke-Becker A, Wieler LH, Barbara K. Multidrug- and methicillin resistant Staphylococcus pseudintermedius as a cause of canine pyoderma: a case report. Berl Munch Tierarztl Wochenschr 2010; 123:353-358. [PMID: 21038805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A case of a dog with a long-term inflammatory skin disorder due to infection with methicillin-resistant Staphylococcus pseudintermedius (MRSP) is described. After initial diagnostics of MRSP, follow-up swabs of the dog (nose, skin) were taken twice after four and seven weeks. MRSP was constantly isolated from the skin and once from the nose. Since infected humans might be a source of reinfection, the owners of the dog were screened (nasal) three times during their pet's therapy. Thereby, the male owner was found to be colonized with MRSP once in the first sampling round. Comparative typing of all MRSP-isolates by pulsed-field gel electrophoresis (PFGE), SCCmec typing, multilocus sequence typing (MLST), spa typing, PCR-detection of the leukotoxin encoding operon (LukI) and the Staphylococcus intermedius-exfoliative toxin (SIET) as well as antimicrobial resistance profiling by broth microdilution revealed that all five MRSP isolates from the dog and the single isolate from the owner were indistinguishable by any of the applied methods. All isolates were assigned to a certain strain, a multidrug-resistant MRSP belonging to sequence type (ST) 71, spa type (t)05, harbouring SCCmecIII as well as the genes encoding LukI and SIET. In this case, a number of reasons might have contributed to therapy failure and re-infection, respectively (e. g. contact to other MRSP-colonized dogs, contact to MRSP-colonized humans, refusal to clip the dog's fur). In addition, MRSP-contaminated objects or surfaces in the household, which were difficult to disinfect or simply not considered as a potential source of MRSP, might have served as a source of re-infection. These results envision the possibility of a dog-to-human transmission of MRSP and the relevance of this aspect as a potential source of re-infection in cases of bacterial-supported long-term skin disorders in canine patients. First cases of MRSP infections in humans have been described only recently. However, the general pathogenic potential of multidrug resistant MRSP in humans is unknown so far and needs further investigation.
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Affiliation(s)
- Szilvia Vincze
- Institute of Microbiology and Epizootics (IMT), Veterinary Faculty, Freie Universität Berlin, Berlin, Germany
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18
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Vincze S, Klein G, Altmann H. Desoxyribonuclease activity in the serum and spleen of rats with mycoplasma induced arthritis. Z Rheumatol 1975; 34:49-54. [PMID: 1224809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The endodesoxyribonuclease and exodesoxyribonuclease activities were measured in the spleen cytoplasma fraction and serum of rats with mycoplasma induced arthritis and adjuvant arthritis. A higher exonuclease activity was found in the spleen cytoplasma of adjuvant arthritis rats. During the regression of mycoplasma arthritis an increased activity of exonuclease was detected in the serum, but in the acute stage of inflammation the exonuclease activity was similar to the control values. A higher endonuclease activity was found in the spleen cytoplasma fraction of rats with mycoplasma arthritis. The possible origin of the endonuclease and its role in arthritis are discussed.
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Székely M, Beney L, Gaál O, Vincze S. Electrophoretic studies on proteins and ribonucleic acids of free and membrane-bound ribosomes. Biochim Biophys Acta 1966; 123:574-84. [PMID: 4961609 DOI: 10.1016/0005-2787(66)90224-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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