biological hazards

  • 文章类型: Journal Article
    COVID-19大流行对全球健康的深远影响,在准备差距和系统性风险的驱动下,强调需要提高社会管理可预测风险和灾害固有不确定性的能力。虽然灾害研究强调可预测威胁的风险管理和应对意外挑战的适应能力,缺乏对适应能力对抗灾能力影响的实证检验。本研究通过确定三个关键的适应能力来解决这一差距-机构质量,协同治理,和社会资本-并检查它们对COVID-19弹性结果的影响,以降低超额死亡率的能力来衡量。使用偏最小二乘结构方程模型分析来自129个国家的二级数据,研究发现,制度质量和社会资本对复原力结果有显著的正向影响。相反,协同治理表现出显著的负关联,这表明潜在的复杂影响超出了最初的预期。研究结果强调,需要提高机构质量和社会资本,以解决COVID-19等生物危害带来的准备差距和意想不到的挑战。未来的研究应使用分类方法探索协作治理,该方法考虑了不同利益相关者在各个灾难阶段的作用。
    本研究通过提出实用的方法来促进灾难研究,以提高适应能力,并根据经验检查其对灾难恢复能力的影响。对于从业者和决策者来说,它强调了在建设抗灾能力方面采取长期观点的必要性,侧重于提高机构质量和社会资本,以有效管理灾难情景中固有的不确定性和复杂性。
    The COVID-19 pandemic\'s profound impacts on global health, driven by preparedness gaps and systemic risks, underscore the need to enhance societies\' ability to manage both predictable risks and uncertainties inherent in disasters. While disaster research emphasises risk management for predictable threats and adaptive capacity for unexpected challenges, there is a lack of empirical examination of the impact of adaptive capacity on disaster resilience. This study addresses this gap by identifying three key adaptive capacities - quality of institutions, collaborative governance, and social capital - and examining their effects on COVID-19 resilience outcomes, measured by the ability to reduce excess mortality. Analysing secondary data from 129 nations using partial least squares structural equation modelling, the research finds significant positive effects of institutional quality and social capital on resilience outcomes. Conversely, collaborative governance shows a significant negative association, suggesting potentially intricate impacts beyond initial expectations. The findings highlight the need to enhance institutional quality and social capital to address preparedness gaps and unexpected challenges posed by biological hazards such as COVID-19. Future research should explore collaborative governance using a disaggregated approach that considers the roles of different stakeholders in various disaster phases.
    UNASSIGNED: This study advances disaster research by presenting practical methodologies for operationalising adaptive capacities and empirically examining their effects on disaster resilience. For practitioners and policymakers, it highlights the need to adopt a long-term perspective in building disaster resilience, focussing on improving institutional quality and social capital to manage the uncertainties and complexities inherent in disaster scenarios effectively.
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  • 文章类型: Journal Article
    消费者可能会接触到许多食源性生物危害,这些危害会导致结果和发病率不同的疾病,因此,代表不同水平的公共卫生负担。为了帮助法国风险管理者对这些危害进行排名,并优先考虑食品安全行动,我们制定了三步走的方法。第一步是制定法国大陆健康关注的食源性危害清单。从335种人类致病生物制剂的初始列表中,“保留的危险”的最终清单包括24种危险,包括12种细菌(包括细菌毒素和代谢产物),3种病毒和9种寄生虫。第二步是收集数据以估计疾病负担(发病率,残疾调整寿命年)在两个时间段内通过食物与这些危害相关:2008-2013年和2014-2019年。根据所考虑的时期,不同危险的等级略有变化。第三步是使用ELECTREIII方法根据多标准决策支持模型对危险进行排名。使用了三个排名标准,其中两个反映了影响的严重程度(生命损失的年数和因残疾而损失的年数),一个反映了疾病的可能性(发病率)。多准则决策分析方法通过不同的权重集以及与数据相关的不确定性来考虑风险管理者的偏好。该方法和收集的数据可以估算法国大陆食源性生物危害的健康负担,并为卫生当局确定优先顺序清单。
    Consumers can be exposed to many foodborne biological hazards that cause diseases with varying outcomes and incidence and, therefore, represent different levels of public health burden. To help the French risk managers to rank these hazards and to prioritize food safety actions, we have developed a three-step approach. The first step was to develop a list of foodborne hazards of health concern in mainland France. From an initial list of 335 human pathogenic biological agents, the final list of \"retained hazards\" consists of 24 hazards, including 12 bacteria (including bacterial toxins and metabolites), 3 viruses and 9 parasites. The second step was to collect data to estimate the disease burden (incidence, Disability Adjusted Life Years) associated with these hazards through food during two time periods: 2008-2013 and 2014-2019. The ranks of the different hazards changed slightly according to the considered period. The third step was the ranking of hazards according to a multicriteria decision support model using the ELECTRE III method. Three ranking criteria were used, where two reflect the severity of the effects (Years of life lost and Years lost due to disability) and one reflects the likelihood (incidence) of the disease. The multicriteria decision analysis approach takes into account the preferences of the risk managers through different sets of weights and the uncertainties associated with the data. The method and the data collected allowed to estimate the health burden of foodborne biological hazards in mainland France and to define a prioritization list for the health authorities.
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  • 文章类型: Journal Article
    这项研究的目的是探索2019年冠状病毒病(COVID-19)大流行期间怀孕的克罗地亚医护人员(HCWs)的职业安全。为此,我们编写了一份匿名问卷,其中包括怀孕数据,风险评估和缓解,和工作场所干预,并通过其团体和协会的社交媒体将其分发给HCWs。该研究共包括173名受访者(71.1%的医生,19.7%的护士,9.2%的其他HCWs)在2020年和2021年被诊断为怀孕。雇主在怀孕的第八周(IQR7.0-11.0)被告知HCWs怀孕,这将工作场所风险评估和缓解延迟到妊娠早期。只有19.6%的参与者进行了风险评估和缓解,主要是主动(76.5%)。在通知雇主怀孕后,37.0%的参与者选择暂时丧失工作能力(TWI)由于“妊娠并发症”,尽管怀孕健康,16.8%的人获得了怀孕工人的带薪假期,费用由雇主承担,而5.8%的人继续在同一工作场所工作。护士比医生更频繁地使用TWI获益(58.8%vs30.1%,P=0.004)。我们的发现表明,克罗地亚怀孕的HCWs的职业安全缺乏明确和透明的策略来保护怀孕的HCWs,迫使他们滥用医疗系统。
    2019年(COVID-19)。Utusmosvrhusastavilianonimniupitnikkojijeuključivaopodatkeotrudnoći,procjeniismanjenjurizikateointerventioncijamanaradnommjestuidistriiraligaZRputemdruštvenihmedijanjihovihgrupaiudruzenja.Istraçivanjejeobuhvatiloukupno173Sudionice(71,1%liječnice,19,7%的medicinskesestre,9,2%OstaleZR)小岛2020年。i2021年。ZRobaviješteniuosmom(IQR7,0-11,0)tjednutrudnoće,tojeodgodiloprocjenuismanjenjerizikanaradnommjestunakonprvogtromjesečja.Postupakprocjeneismanjenjarizikaprovedenjeusamo19,6%sudionica,uglavnomnanjihovuinicijativu(76,5%)。Nakonštosuposlodavcaobavijestleotrudnoći,37,0%subdionicakoristilojeprivremenunesposobnostzarad(PNR)zbog“komplikacijautrudnoći”unatočzdravojtrudnoći,16,8%odobrenjeplaćenidopusttrudneradnicenateretposlodavca,dokje5,8%纳斯塔维洛·拉迪蒂·纳伊托姆·雷德诺姆·梅斯图。MedicinskesestrekoristilesuPNRčenegoliječnice(58,8%prema30,1%,P=0,004)。NaširezultatiupućujunanedostatakjasnihitransparentnihstrategijazaštitetrudnihZRuHrvatskoj,toihprisiljavanazlouporabuzdravstvvenogsustava.
    The aim of this study was to explore occupational safety in pregnant Croatian healthcare workers (HCWs) during the coronavirus disease 2019 (COVID-19) pandemic. To this end we composed an anonymous questionnaire that included pregnancy data, risk assessment and mitigation, and workplace intervention and distributed it to HCWs through social media of their groups and associations. The study includes a total of 173 respondents (71.1 % physicians, 19.7 % nurses, 9.2 % other HCWs) diagnosed with pregnancy in 2020 and 2021. Employers were notified about HCWs\' pregnancy at the eighth (IQR 7.0-11.0) week of pregnancy, which delayed workplace risk assessment and mitigation beyond the first trimester. Only 19.6 % of the participants had the risk assessed and mitigated, mostly on their own initiative (76.5 %). After notifying employers about pregnancy, 37.0 % of participants opted for temporary work incapacity (TWI) due to \"pregnancy complications\" despite healthy pregnancy, 16.8 % were granted a pregnant worker\'s paid leave at the expense of the employer, while 5.8 % continued to work at the same workplace. Nurses used the TWI benefit more frequently than physicians (58.8 % vs 30.1 %, P=0.004). Our findings suggest that occupational safety of pregnant HCWs in Croatia lacks clear-cut and transparent strategies to protect pregnant HCWs, forcing them to misuse the healthcare system.
    Cilj ovog istraživanja bio je istražiti zaštitu na radu trudnih hrvatskih zdravstvenih radnica (ZR) tijekom pandemije koronovirusne bolesti 2019 (COVID-19). U tu smo svrhu sastavili anonimni upitnik koji je uključivao podatke o trudnoći, procjeni i smanjenju rizika te o intervencijama na radnom mjestu i distribuirali ga ZR putem društvenih medija njihovih grupa i udruženja. Istraživanje je obuhvatilo ukupno 173 sudionice (71,1 % liječnice, 19,7 % medicinske sestre, 9,2 % ostale ZR) kojima je dijagnosticirana trudnoća 2020. i 2021. Poslodavci su o trudnoći ZR obaviješteni u osmom (IQR 7,0–11,0) tjednu trudnoće, što je odgodilo procjenu i smanjenje rizika na radnom mjestu nakon prvog tromjesečja. Postupak procjene i smanjenja rizika proveden je u samo 19,6 % sudionica, uglavnom na njihovu inicijativu (76,5 %). Nakon što su poslodavca obavijestile o trudnoći, 37,0 % sudionica koristilo je privremenu nesposobnost za rad (PNR) zbog „komplikacija u trudnoći” unatoč zdravoj trudnoći, 16,8 % odobren je plaćeni dopust trudne radnice na teret poslodavca, dok je 5,8 % nastavilo raditi na istom radnom mjestu. Medicinske sestre koristile su PNR češće nego liječnice (58,8 % prema 30,1 %, P=0,004). Naši rezultati upućuju na nedostatak jasnih i transparentnih strategija zaštite trudnih ZR u Hrvatskoj, što ih prisiljava na zlouporabu zdravstvenog sustava.
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  • 文章类型: Journal Article
    在这项试点研究中,我们比较了在意大利收集的不同类型的手工发酵肉制品的宏基因组概况,希腊,葡萄牙,和摩洛哥来调查他们的分类概况,还与食源性病原体和抗菌素抗性基因的存在有关。此外,对同一生物样品的技术重复进行了测试,以估计鸟枪宏基因组学的可重复性.分类学分析表明,在门和属水平上,不同发酵肉制品之间的变异性很高。金黄色葡萄球菌在意大利发酵肉中的丰度最高;摩洛哥发酵肉中的大肠杆菌;希腊发酵肉中的沙门氏菌;葡萄牙发酵肉中的肺炎克雷伯菌和小肠结肠炎耶尔森氏菌。曲霉菌,Neosartoria,Emericella,青霉和去细菌与乳球菌呈负相关,肠球菌,链球菌,明串珠菌和乳杆菌。抗性组分析表明,赋予氨基糖苷抗性的基因,大环内酯,四环素在所有样本中广泛存在。我们的结果表明,在相同的分析条件下(无论是DNA提取,图书馆准备,测序分析,和生物信息学分析),同时考虑重叠程度和成对相关性。
    In this pilot study, we compared the metagenomic profiles of different types of artisanal fermented meat products collected in Italy, Greece, Portugal, and Morocco to investigate their taxonomic profile, also in relation to the presence of foodborne pathogens and antimicrobial resistance genes. In addition, technical replicates of the same biological sample were tested to estimate the reproducibility of shotgun metagenomics. The taxonomic analysis showed a high level of variability between different fermented meat products at both the phylum and genus levels. Staphylococcus aureus was identified with the highest abundance in Italian fermented meat; Escherichia coli in fermented meat from Morocco; Salmonella enterica in fermented meat from Greece; Klebsiella pneumoniae and Yersinia enterocolitica in fermented meat from Portugal. The fungi Aspergillus, Neosartoria, Emericella, Penicillum and Debaryomyces showed a negative correlation with Lactococcus, Enterococcus, Streptococcus, Leuconostoc and Lactobacillus. The resistome analysis indicated that genes conferring resistance to aminoglycoside, macrolide, and tetracycline were widely spread in all samples. Our results showed that the reproducibility between technical replicates tested by shotgun metagenomic was very high under the same conditions of analysis (either DNA extraction, library preparation, sequencing analysis, and bioinformatic analysis), considering both the degree of overlapping and the pairwise correlation.
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  • 文章类型: Journal Article
    背景:在针对生物危害的眼睛和面部保护标准的发展中,重要的是要考虑到眼睛和面部保护器可以在户外环境中使用,来自太阳的紫外线(UV)暴露比室内高得多。受影响的工人包括护理人员,救护人员和临床检测人员。
    方法:在医院和临床环境中使用的八个面罩和一个护目镜上测量光谱透射率(280-780nm),三个高架投影仪片和一个职业冲击防护护目镜。根据国际和两个国家太阳镜标准计算了紫外线和透光率,并与合规要求进行比较。
    结果:所有的面罩和护目镜镜片都是由相同材料的变体制成的。所有的样本,包括高架投影仪的工作表,符合太阳镜标准的要求(对于正常情况,在美国标准的情况下)。
    结论:由于所有镜片都符合太阳镜紫外线防护标准,这种产品类型的材料选择似乎是一致的,没有必要做准备,就像职业眼睛和面部保护标准一样,对于不提供紫外线保护的保护者。这使得眼睛护理和安全专业人员给最终用户的标签和建议变得简单得多。
    BACKGROUND: In the development of eye and face protection standards against biological hazards, it is important to consider that the eye and face protectors may be used in the outdoor environment, where ultraviolet (UV) exposure from the sun is much higher than indoors. Workers affected include paramedics, ambulance officers and clinical testing personnel.
    METHODS: Spectral transmittances (280-780 nm) were measured on eight face shields and one goggle of the types used in hospital and clinical environments, three overhead projector sheets and an occupational impact protective goggle. The UV and luminous transmittances were calculated according to the international and two national sunglass standards, and compared with the compliance requirements.
    RESULTS: All the face shields and goggle lenses were made of variants of the same material. All the samples, including the overhead projector sheets, complied with the requirements of the sunglass standards (for normal conditions, in the case of the American standard).
    CONCLUSIONS: Since all the lenses complied with the sunglass standards for UV protection, and there appears to be uniformity in the choice of materials in this product type, there is no need to make provision, as is the case for occupational eye and face protection standards, for protectors that do not provide UV protection. This makes labelling and advice to end users from eyecare and safety professionals much simpler.
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  • 文章类型: Journal Article
    在餐馆和中小型企业中,加工鱼产品的商业化正在上升。然而,缺乏有关此类产品的微生物安全性的数据。在这项研究中,需氧菌落总数和肠杆菌科细菌,作为过程卫生标准的代理,检测单核细胞增生李斯特菌和组胺浓度,作为食品安全标准,在Salmosalar(鲑鱼)进行了调查,剑鱼(旗鱼)和长鳍金枪鱼(黄鳍金枪鱼),之前,during,在干固化过程结束时,在一个专门的柜子里表演,在受控温度下,相对湿度和通风,长达240小时。通过培养方法和猎枪宏基因组研究了测试鱼产品中的微生物参数,而组胺的存在,和其他生物胺,通过高效液相色谱法定量。在原材料中,直到干固化过程结束,肠杆菌的浓度始终低于10CFU/g,鲑鱼的需氧菌落总数在3.9至5.4LogCFU/g之间;箭鱼为5.5和5.9LogCFU/g;金枪鱼为4.4和4.8LogCFU/g。鱼种之间的pH值明显不同,在原材料和除T4以外的加工过程中,鲑鱼在开始过程后70小时发生,箭鱼和金枪鱼在114小时后发生。水活度在特定采样点和处理结束时是不同的。总的来说,在测试的鱼样品中鉴定的79%的序列被分配给Y细菌。最丰富的门是假单胞菌,芽孢杆菌和支原体。在测试的鱼类中,通过shot弹枪宏基因组鉴定的微生物种群聚集得很好,彼此分开。此外,鲑鱼和金枪鱼的微生物丰富度明显高于箭鱼。通过使用参考培养方法,在原材料中未检测到单核细胞增生李斯特菌,并且通过猎枪宏基因组在箭鱼和金枪鱼中检测到很少的读数(相对丰度<0.007)。产生组胺的细菌,属于弧菌属,Morganella,光细菌和克雷伯菌,主要在箭鱼中发现。然而,在任何样品中均未检测到组胺和其他生物胺。据我们所知,这是第一篇报告鲑鱼微生物质量和安全参数时间点测定的论文,箭鱼和金枪鱼,之前,在干固化过程中和结束时。本文收集的数据可以帮助预测即食干腌鱼产品在食用前储存期间的风险状况。
    The commercialization of processed fish products is rising in restaurants and small to medium enterprises. However, there is a lack of data related to the microbiological safety of such products. In this study total aerobic colony count and Enterobacteriaceae, as proxy of process hygiene criteria, and detection of Listeria monocytogenes and concentration of histamine, as food safety criteria, were investigated in Salmo salar (salmon), Xiphias gladius (swordfish) and Thunnus albacares (yellowfin tuna), before, during, and at the end of a dry-curing process, performed in a dedicated cabinet, at controlled temperature, relative humidity and ventilation, up to 240 h. The microbiological parameters were investigated in the tested fish products by culture methods and shotgun metagenomic, while the presence of histamine, and other biogenic amines, was quantified by High Performance Liquid Chromatography. In the raw material, and up to the end of the dry curing process, the concentration of Enterobacteriaceae was always lower than 10 CFU/g, while total aerobic colony counts ranged between 3.9 and 5.4 Log CFU/g in salmon; 5.5 and 5.9 Log CFU/g in swordfish; 4.4 and 4.8 Log CFU/g in tuna. The pH values were significantly different between fish species, in the raw materials and during processing except for T4, occurring 70 h after the start of the process for salmon and after 114 h for swordfish and tuna. Water activity was different at specific sampling points and at the end of processing. Overall, 79 % of the sequences identified in the tested fish samples were assigned to y bacteria. The most abundant phyla were Pseudomonadota, Bacillota and Mycoplasmatota. The microbial populations identified by shotgun metagenomic in the tested fish species clustered well separated one from the other. Moreover, the microbial richness was significantly higher in salmon and tuna in comparison to swordfish. Listeria monocytogenes was not detected in the raw material by using the reference cultural method and very few reads (relative abundance <0.007) were detected in swordfish and tuna by shotgun metagenomic. Histamine producing bacteria, belonging to the genera Vibrio, Morganella, Photobacterium and Klebsiella, were identified primarily in swordfish. However, histamine and other biogenic amines were not detected in any sample. To the best of our knowledge this is the first paper reporting time point determinations of microbiological quality and safety parameters in salmon, swordfish and tuna, before, during and at the end of a dry-curing process. The data collected in this paper can help to predict the risk profile of ready to eat dry-cured fish products during storage before consumption.
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  • 文章类型: Journal Article
    蔬菜,尤其是那些生吃的,与一些食源性疾病的爆发有关。由于涉及多种蔬菜基质和危害,风险管理者必须优先考虑那些对公共卫生影响最大的人,以设计控制策略。在这项研究中,对阿根廷绿叶蔬菜传播的食源性病原体进行了基于科学的风险排名。优先排序过程包括危险识别,评价标准的确定和定义,标准加权,专家调查设计和选择,并呼吁专家,危险分数计算,危害排序和变异系数,和结果分析。回归树分析确定了四个风险簇:高(隐孢子虫。,弓形虫,诺如病毒),中度(贾第虫属。,李斯特菌。,宋内志贺氏菌),低(产志贺毒素的大肠杆菌,蛔虫。,溶组织内阿米巴,沙门氏菌属。,轮状病毒,肠道病毒)和非常低(空肠弯曲菌,甲型肝炎病毒和假结核耶尔森氏菌)。诺如病毒引起的疾病,隐孢子虫。和弓形虫不需要强制通知。病毒和寄生虫都不作为食品的微生物标准。由于缺乏爆发研究,因此无法准确确定蔬菜是诺如病毒病的来源。没有有关因食用蔬菜引起的李斯特菌病病例或暴发的信息。志贺氏菌属。是细菌性腹泻的主要原因,但在流行病学上与蔬菜消费无关。所研究的所有危害的可用信息质量非常低。在整个蔬菜生产链中实施良好做法准则可以防止存在已识别的危害。目前的研究允许确定空缺地区,并可能有助于加强对阿根廷可能与蔬菜消费相关的食源性疾病进行流行病学研究的必要性。
    Vegetables, especially those eaten raw, have been implicated in several foodborne disease outbreaks. Since multiple vegetable matrices and hazards are involved, risk managers have to prioritize those with the greatest impact on public health to design control strategies. In this study, a scientific-based risk ranking of foodborne pathogens transmitted by leafy green vegetables in Argentina was performed. The prioritization process included hazard identification, evaluation criteria identification and definition, criteria weighting, expert survey design and selection and call for experts, hazard score calculation, hazard ranking and variation coefficient, and result analysis. Regression tree analysis determined four risk clusters: high (Cryptosporidum spp., Toxoplasma gondii, Norovirus), moderate (Giardia spp., Listeria spp., Shigella sonnei), low (Shiga toxin-producing Escherichia coli, Ascaris spp., Entamoeba histolytica, Salmonella spp., Rotavirus, Enterovirus) and very low (Campylobacter jejuni, hepatitis A virus and Yersinia pseudotuberculosis). Diseases caused by Norovirus, Cryptosporidium spp. and T. gondii do not require mandatory notification. Neither viruses nor parasites are included as microbiological criteria for foodstuff. The lack of outbreak studies did not allow to accurately identify vegetables as a source of Norovirus disease. Information on listeriosis cases or outbreaks due to vegetable consumption was not available. Shigella spp. was the main responsible for bacterial diarrhea, but it has not been epidemiologically associated with vegetable consumption. The quality of the available information for all hazards studied was very low and low. The implementation of good practice guidelines throughout the entire vegetable production chain could prevent the presence of the identified hazards. The current study allowed the identification of vacancy areas and could help reinforce the need for performing epidemiological studies on foodborne diseases potentially associated with vegetable consumption in Argentina.
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  • 文章类型: English Abstract
    The holistic view of food and feed safety, including animal health and environmental conditions, is an important pillar of the One Health approach. The terminology thus clearly goes beyond the prevention of spreading microbiological diseases, in which context it is often understood, and highlights that humans, animals, and the environment as well as their interaction should be considered in a transdisciplinary context.In terms of One Health, this discussion paper focuses less on microbiological risks, but rather on the connection to chemical risks in the food chain. This is illustrated by concrete examples of chemical contaminants (metals, persistent organic contaminants, natural toxins). The mechanisms of input and transfer along the food chain are presented.Minimizing the presence of contaminants and thus exposure requires international and interdisciplinary cooperation in the spirit of the One Health approach. Climate change, pandemics, shortages of raw materials, energy deficiencies, political crises, and environmental disasters can affect the entire food chain from primary production of plant and animal foods to further processing and provision of products to consumers. In addition to changing availability, this can also have an impact on the composition, quality, and safety of food and feed. Based on the effect on global commodity chains, vulnerable and resilient areas along the food chain become visible. In terms of the One Health approach, the aim is to increase safety and resilience along the food chain and to minimize its vulnerability.
    UNASSIGNED: Die ganzheitliche Betrachtung der Lebens- und Futtermittelsicherheit unter Einbeziehung der Tiergesundheit und der Umweltbedingungen ist eine wichtige Säule des One-Health-Ansatzes. Die Begrifflichkeit geht damit deutlich über die häufig darunter verstandene Vermeidung der Verbreitung von übertragbaren mikrobiologischen Krankheiten hinaus und verdeutlicht, dass Mensch, Tiere und Umwelt sowie ihre Interaktionen in einem transdisziplinären Kontext betrachtet werden sollten.In dem vorliegenden Diskussionsbeitrag zum One-Health-Ansatz liegt der Fokus weniger auf mikrobiologischen Risiken, sondern es wird insbesondere der Zusammenhang zu chemischen Risiken in der Nahrungskette hergestellt. Dieser wird an konkreten Beispielen chemischer Kontaminanten (Metalle, persistente organische Kontaminanten und natürliche Toxine) verdeutlicht und die Mechanismen von Eintrag und Weitergabe entlang der Nahrungsketten werden vorgestellt.Die Minimierung des Vorkommens chemischer Kontaminanten und somit der Exposition erfordert internationale und interdisziplinäre Zusammenarbeit. Klimawandel, Pandemien, Rohstoffknappheit, Energiemangel, politische Krisen und Umweltkatastrophen können die gesamte Kette der Primärproduktion pflanzlicher und tierischer Lebensmittel sowie die Weiterverarbeitung und Bereitstellung der Produkte für Verbraucherinnen und Verbraucher beeinträchtigen. Neben der sich verändernden Verfügbarkeit kann dies auch einen Einfluss auf die Zusammensetzung, Qualität und Sicherheit der Lebens- und Futtermittel haben. Anhand der Effekte auf globalen Warenketten werden vulnerable und resiliente Bereiche sichtbar. Im Sinne des One-Health-Ansatzes gilt es, die Sicherheit und Resilienz entlang der Nahrungskette zu erhöhen und deren Vulnerabilität zu minimieren.
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  • 文章类型: Journal Article
    废水处理与产生不利健康影响的风险增加有关,包括呼吸道和胃肠道疾病。然而,文献中缺乏信息,职业健康风险没有得到很好的量化。使用IlluminaMiseq16S扩增子测序分析了抓取的进水样品,以评估工人对五个市政污水处理厂(WWTP)中发生的细菌病原体的潜在暴露。最主要的门是拟杆菌,弯曲杆菌,变形杆菌,Firmicutes,和脱硫细菌,占细菌群落总数的85.4%。分类学分析表明,在所有污水处理厂中,主要属的细菌组成多样性相对较低,表明进水源中细菌群落的高度稳定性。人类健康关注的病原细菌属包括分枝杆菌,柯西拉,大肠杆菌/志贺氏菌,弓形虫,不动杆菌,链球菌,密螺旋体,和气单胞菌。此外,确定了WHO列出的固有抗性机会性细菌属。这些结果表明,WWTP工人可能在职业上暴露于几种被归类为人类危险生物制剂的细菌属。因此,需要进行全面的风险评估,以确定污水处理厂工人的实际风险和健康结果,并为减少工人暴露的有效干预策略提供信息。
    Wastewater handling has been associated with an increased risk of developing adverse health effects, including respiratory and gastrointestinal illnesses. However, there is a paucity of information in the literature, and occupational health risks are not well quantified. Grab influent samples were analysed using Illumina Miseq 16S amplicon sequencing to assess potential worker exposure to bacterial pathogens occurring in five municipal wastewater treatment plants (WWTPs). The most predominant phyla were Bacteroidota, Campilobacterota, Proteobacteria, Firmicutes, and Desulfobacterota, accounting for 85.4% of the total bacterial community. Taxonomic analysis showed a relatively low diversity of bacterial composition of the predominant genera across all WWTPs, indicating a high degree of bacterial community stability in the influent source. Pathogenic bacterial genera of human health concern included Mycobacterium, Coxiella, Escherichia/Shigella, Arcobacter, Acinetobacter, Streptococcus, Treponema, and Aeromonas. Furthermore, WHO-listed inherently resistant opportunistic bacterial genera were identified. These results suggest that WWTP workers may be occupationally exposed to several bacterial genera classified as hazardous biological agents for humans. Therefore, there is a need for comprehensive risk assessments to ascertain the actual risks and health outcomes among WWTP workers and inform effective intervention strategies to reduce worker exposure.
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  • 文章类型: Journal Article
    鉴于工作犬越来越多地部署到使用致病性生物制剂的环境中,一个保险箱,有效,和后勤上可行的表面净化协议是必不可少的,以保护动物和他们的人类处理。我们小组先前发现与工作犬群落相关的表面表面污染,包括皮带和玩具,可以使用各种清洁产品的标准化擦拭方案显着减少。为了扩大这项工作,我们分析了该协议对表面沉积的牛冠状病毒进行净化的能力,用作SARS-CoV-2的BSL2替代品。毫不奇怪,给定表面的物理特性,包括孔隙度和纹理,对处理后恢复留在表面上的活病毒的能力有显著影响。纠正这些差异后,然而,用70%异丙醇(IPA)和0.5%氯己定擦拭效果最好,通过>3登录塑料保险杠玩具和尼龙项圈来降低病毒滴度,并通过>2登录橡胶玩具和网球。皮革皮带和魔术贴被证明更难净化,但在用IPA或氯己定擦拭后,两者仍显示病毒污染的显着丧失。这项工作(i)验证了在多个表面上中和病毒的简单协议的实用性,(ii)识别更难以净化的材料,应该,因此,考虑从现场使用中删除,和(iii)强调需要进一步开发测试多孔或纹理表面的协议。
    Given the increased deployment of working dogs to settings with pathogenic biological agents, a safe, effective, and logistically feasible surface decontamination protocol is essential to protect both the animals and their human handlers. Our group previously found that superficial contamination on surfaces relevant to the working dog community, including leashes and toys, could be significantly reduced using a standardized wiping protocol with various cleansing products. To expand upon this work, we analyzed the ability of this protocol to decontaminate surface-deposited bovine coronavirus, which was used as a BSL2 surrogate for SARS-CoV-2. Unsurprisingly, the physical characteristics of a given surface, including porosity and texture, had a significant effect on the ability to recover viable virus remaining on the surface post treatment. After correcting for these differences, however, wiping with 70% isopropyl alcohol (IPA) and 0.5% chlorhexidine performed best, reducing viral titers by >3 log on plastic bumper toys and nylon collars, and by >2 log on rubber toys and tennis balls. Leather leashes and Velcro proved more difficult to decontaminate, but both still showed significant loss of viral contamination following wiping with IPA or chlorhexidine. This work (i) validates the utility of a simple protocol for the neutralization of viruses on several surfaces, (ii) identifies materials that are more difficult to decontaminate, which should, thus, be considered for removal from field use, and (iii) highlights the need for further development of protocols testing porous or textured surfaces.
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