830 resultados para Public Health, Environmental and Occupational Health


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The growing epidemic of allergy and allergy-induced asthma poses a significant challenge to population health. This article, written for a target audience of policy-makers in public health, aims to contribute to the development of policies to counter allergy morbidities by demonstrating how principles of social justice can guide public health initiatives in reducing allergy and asthma triggers. Following a discussion of why theories of social justice have utility in analyzing allergy, a step-wise policy assessment protocol formulated on Rawlsian principles of social justice is presented. This protocol can serve as a tool to aid in prioritizing public health initiatives and identifying ethically problematic policies that necessitate reform. Criteria for policy assessment include: 1) whether a tentative public health intervention would provide equal health benefit to a range of allergy and asthma sufferers, 2) whether targeting initiatives towards particu- lar societal groups is merited based on the notion of ‘worst-off status’ of certain population segments, and 3) whether targeted policies have the potential for stigmatization. The article concludes by analyzing three examples of policies used in reducing allergy and asthma triggers in order to convey the general thought process underlying the use of the assessment protocol, which public health officials could replicate as a guide in actual, region-specific policy development.

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Antimicrobial resistance is a growing public health concern and is associated with the over or inappropriate use of antimicrobials in both humans and agriculture. While there has been recognition of this problem on the part of agricultural and public health authorities, there has nonetheless been significant difficulty in translating policy recommendations into practical guidelines. In this paper, we examine the process of public health policy development in Quebec agriculture, with a focus on the case of pork production and the role of food animal veterinarians in policy making. We argue that a tendency to employ strictly techno-scientific risk analyses of antimicrobial use ignores the fundamental social, economic and political realities of key stakeholders and so limits the applicability of policy recommendations developed by government advisory groups. In particular, we suggest that veterinarians’ personal and professional interests, and their ethical norms of practice, are key factors to both the problem of and the solution to the current over-reliance on antimicrobials in food production.

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Dans de nombreuses sociétés industrialisées, une grande valeur est attribuée au jeu des enfants, principalement parce que le jeu est considéré comme étant une composante essentielle de leur développement et qu’il contribue à leur bonheur et à leur bien-être. Toutefois, des inquiétudes ont récemment été exprimées au regard des transformations qui s’opèrent dans le jeu des enfants, notamment en ce qui a trait à la réduction du temps de jeu en plein air. Ces transformations ont été attribuées, en grande partie, à une perception de risques accrus associés au jeu en plein air et à des changements sociaux qui favorisent des activités de loisirs plus structurées et organisées. L’inquiétude concernant la diminution de l’espace-temps accordé au jeu des enfants est d’ailleurs clairement exprimée dans le discours de la santé publique qui, de plus, témoigne d’un redoublement de préoccupations vis-à-vis du mode de vie sédentaire des enfants et d’une volonté affirmée de prévention de l'obésité infantile. Ainsi, les organisations de santé publique sont désormais engagées dans la promotion du jeu actif pour accroître l'activité physique des enfants. Nous assistons à l’émergence d’un discours de santé publique portant sur le jeu des enfants. À travers quatre articles, cette thèse explore le discours émergeant en santé publique sur le jeu des enfants et analyse certains de ses effets potentiels. L'article 1 présente une prise de position sur le sujet du jeu en santé publique. J’y définis le cadre d'analyse de cette thèse en présentant l'argument central de la recherche, les positions que les organisations de santé publique adoptent vis-à-vis le jeu des enfants et les répercussions potentielles que ces positions peuvent avoir sur les enfants et leurs jeux. La thèse permet ensuite d’examiner comment la notion de jeu est abordée par le discours de santé publique. L'article 2 présente ainsi une analyse de discours de santé publique à travers 150 documents portant sur la santé, l'activité physique, l'obésité, les loisirs et le jeu des enfants. Cette étude considère les valeurs et les postulats qui sous-tendent la promotion du jeu comme moyen d’améliorer la santé physique des enfants et permet de discerner comment le jeu est façonné, discipliné et normalisé dans le discours de santé publique. Notre propos révèle que le discours de santé publique représente le jeu des enfants comme une activité pouvant améliorer leur santé; que le plaisir sert de véhicule à la promotion de l’activité physique ; et que les enfants seraient encouragés à organiser leur temps libre de manière à optimiser leur santé. Étant donné l’influence potentielle du discours de santé publique sur la signification et l’expérience vécue du jeu parmi les enfants, cette thèse présente ensuite une analyse des représentations qu’ont 25 enfants âgés de 7 à 11 ans au regard du jeu. L’article 3 suggère que le jeu est une fin en soi pour les enfants de cette étude; qu'il revêt une importance au niveau émotionnel; et qu'il s’avère intrinsèquement motivé, sans but particulier. De plus, l’amusement que procure le jeu relève autant d’activités engagées que d’activités sédentaires. Enfin, certains enfants expriment un sentiment d'ambivalence concernant les jeux organisés; tandis que d’autres considèrent parfois le risque comme une composante particulièrement agréable du jeu. De tels résultats signalent une dissonance entre les formes de jeux promues en santé publique et le sens attribué au jeu par les enfants. Prenant appui sur le concept de « biopédagogies » inspiré des écrits de Michel Foucault, le quatrième article de cette thèse propose un croisement des deux volets de cette étude, soit le discours de santé publique sur le jeu et les constructions du jeu par les enfants. Bien que le discours de la santé publique exhortant au «jeu actif» soit reproduit par certains enfants, d'autres soulignent que le jeu sédentaire est important pour leur bien-être social et affectif. D’autre part, tandis que le « jeu actif » apparait, dans le discours de santé publique, comme une solution permettant de limiter le risque d'obésité, il comporte néanmoins des contradictions concernant la notion de risque, dans la mesure où les enfants ont à négocier avec les risques inhérents à l’activité accrue. À terme, cet article suggère que le discours de santé publique met de l’avant certaines représentations du jeu (actifs) tandis qu’il en néglige d’autres (sédentaires). Cette situation pourrait donner lieu à des conséquences inattendues, dans la mesure où les enfants pourraient éventuellement reconfigurer leurs pratiques de jeu et les significations qu’ils y accordent. Cette thèse n'a pas pour but de fournir des recommandations particulières pour la santé publique au regard du jeu des enfants. Prenant appui sur la perspective théorique de Michel Foucault, nous présentons plutôt une analyse d’un discours émergeant en santé publique ainsi que des pistes pour la poursuite de recherches sur le jeu dans le domaine de l’enfance. Enfin, compte tenu des effets potentiels du discours de la santé publique sur le jeu des enfants, et les perspectives contemporaines sur le jeu et les enfants, la conclusion offre des pistes de réflexion critique.

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To assess the prevalence of faecal coliform bacteria and multiple drug resistance among Escherichia coli and Salmonella serotypes from Vembanadu Lake. Study design: Systematic microbiological testing. Methods: Monthly collection of water samples were made from ten stations on the southern and northern parts of a salt water regulator constructed in Vembanadu Lake in order to prevent incursion of seawater during certain periods of the year. Density of faecal colifrom bacteria was estimated. E. coli and Salmonella were isolated and their different serotypes were identified. Antibiotic resistance analysis of E. coli and Salmonella serotypes was done and the MAR index of individual isolates was calculated. Results: Density of faecal coliform bacteria ranged from mean MPN value 2900 -7100/100ml. Results showed multiple drug resistance pattern among the bacterial isolates. E. coli showed more than 50% resistance to amickacin, oxytetracycline, streptomycin, tetracycline and kanamycin while Salmonella showed high resistance to oxytetracycline, streptomycin, tetracycline and ampicillin. The MAR indexing of the isolates showed that they have originated from high risk source such as humans, poultry and dairy cows. Conclusions: The high density of faecal coliform bacteria and prevalence of multi drug resistant E. coli and Salmonella serotypes in the lake may pose severe public health risk through related water borne and food borne outbreaks

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Aeromonas spp. are ubiquitous aquatic organisms, associated with multitude of diseases in several species of animals, including fishes and humans. In the present study, water samples from two ornamental fish culture systems were analyzed for the presence of Aeromonas. Nutrient agar was used for Aeromonas isolation, and colonies (60 No) were identified through biochemical characterization. Seven clusters could be generated based on phenotypic characters, analyzed by the programme NTSYSpc, Version 2.02i, and identified as: Aeromonas caviae (33.3%), A. jandaei (38.3%) and A. veronii biovar sobria (28.3%). The strains isolated produced highly active hydrolytic enzymes, haemolytic activity and slime formation in varying proportions. The isolates were also tested for the enterotoxin genes (act, alt and ast), haemolytic toxins (hlyA and aerA), involved in type 3 secretion system (TTSS: ascV, aexT, aopP, aopO, ascF–ascG, and aopH), and glycerophospholipid-cholesterol acyltransferase (gcat). All isolates were found to be associated with at least one virulent gene. Moreover, they were resistant to frequently used antibiotics for human infections. The study demonstrates the pathogenic potential of Aeromonas, associated with ornamental fish culture systems suggesting the emerging threat to public health

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This paper deals with brief overview of the developments of international provisions on IPR related to public health. It discusses flexibilities before and after TRIPS Agreement and difficulties faced by developing countries in implementing TRIPS obligations and protecting public health. Also discussed are the reasons for the Doha Declaration and issues relating to implementation of Para 6 of the Declaration. Discusses the inadequacy in the compulsory licence based approach to solve public health crisis and argues for a more comprehensive approach to find a long term solution to the public health issues

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Globalization has been accompanied by the rapid spread of infectious diseases, and further strain on working conditions for health workers globally. Post-SARS, Canadian occupational health and infection control researchers got together to study how to better protect health workers, and found that training was indeed perceived as key to a positive safety culture. This led to developing information and communication technology (ICT) tools. The research conducted also showed the need for better workplace inspections, so a workplace audit tool was also developed to supplement worker questionnaires and the ICT. When invited to join Ecuadorean colleagues to promote occupational health and infection control, these tools were collectively adapted and improved, including face-to-face as well as on-line problem-based learning scenarios. The South African government then invited the team to work with local colleagues to improve occupational health and infection control, resulting in an improved web-based health information system to track incidents, exposures, and occupational injury and diseases. As the H1N1 pandemic struck, the online infection control course was adapted and translated into Spanish, as was a novel skill-building learning tool that permits health workers to practice selecting personal protective equipment. This tool was originally developed in collaboration with the countries from the Caribbean region and the Pan American Health Organization (PAHO). Research from these experiences led to strengthened focus on building capacity of health and safety committees, and new modules are thus being created, informed by that work. The products developed have been widely heralded as innovative and interactive, leading to their inclusion into “toolkits” used internationally. The tools used in Canada were substantially improved from the collaborative adaptation process for South and Central America and South Africa. This international collaboration between occupational health and infection control researchers led to the improvement of the research framework and development of tools, guidelines and information systems. Furthermore, the research and knowledge-transfer experience highlighted the value of partnership amongst Northern and Southern researchers in terms of sharing resources, experiences and knowledge.

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The present essay’s central argument or hypothesis is, consequently, that the mechanisms accelerating a wealth concentrating and exclusionary economy centred on the benefit and overprotection of big business—with a corresponding plundering of resources that are vital for life—generated forms of loss and regression in the right to healthcare and the dismantling of institutional protections. These are all expressed in indicators from 1990-2005, which point not only to the deterioration of healthcare programs and services but also to the undermining of the general conditions of life (social reproduction) and, in contrast to the reports and predictions of the era’s governments, a stagnation or deterioration in health indicators, especially for those most sensitive to the crisis. The present study’s argument is linked together across distinct chapters. First, we undertake the necessary clarification of the categories central to the understanding of a complex issue; clarifying the concept of health itself and its determinants, emphasizing the necessity of taking on an integral understanding as a fundamental prerequisite to unravelling what documents and reports from this era either leave unsaid or distort. Based on that analysis, we will explain the harmful effects of global economic acceleration, the monopolization and pillaging of strategic healthcare goods; not only those which directly place obstacles on the access to health services, but also those like the destructuration of small economies, linked to the impoverishment and worsening of living modes. Thinking epidemiologically, we intend to show signs of the deterioration of broad collectivities’ ways of life as a result of the mechanisms of acceleration and pillage. We will then collect disparate evidence of the deterioration of human health and ecosystems to, finally, establish the most urgent conclusions about this unfortunate period of our social and medical history.

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The point of departure for these reflections is life, since its protection is the central purpose encouraging the defense of human rights and of public health. Life in the Andes has an exceptional diversity. Particularly in Ecuador, my country, this diversity constitutes a characteristic sign that is expressed in two main forms: natural megadiversity and multiculturalism. Indeed, Ecuador’s small territory synthesizes practically all types of lifezones that exist on Earth, having received the gift of high average rates of solar energy and abundant nutritional sources, which have facilitated the natural reproduction of countless species that show their beautiful vitality in the variety of ecosystems that compose the Andean mountain range, the tropical plains, the Amazon humid forests, and the Galapagos Islands. But besides being a highly biodiverse country, it is also a plurinational and multi-cultural society, in which the activity of human beings, organized into social conglomerates of different historical and cultural backgrounds, have formed more than a dozen nations and peoples. Regrettably this natural and human wealth has not been able to bear its best fruits due to the violent operation of a deep social inequity – unfortunately also one of the highest in the Americas—which conspires against life and is reproduced in national and international inequitable relations. This structural inequity has changed its form throughout the centuries and currently has reached its highest and most perverse level of development.

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There is ongoing debate concerning the possible environmental and human health impacts of growing genetically modified (GM) crops. Here, we report the results of a life-cycle assessment (LCA) comparing the environmental and human health impacts of conventional sugar beet growing regimes in the UK and Germany with those that might be expected if GM herbicide-tolerant (to glyphosate) sugar beet is commercialized. The results presented for a number of environmental and human health impact categories suggest that growing the GM herbicide-tolerant crop would be less harmful to the environment and human health than growing the conventional crop, largely due to lower emissions from herbicide manufacture, transport and field operations. Emissions contributing to negative environmental impacts, such as global warming, ozone depletion, ecotoxicity of water and acidification and nutrification of soil and water, were much lower for the herbicide-tolerant crop than for the conventional crop. Emissions contributing to summer smog, toxic particulate matter and carcinogenicity, which have negative human health impacts, were also substantially lower for the herbicide-tolerant crop. The environmental and human health impacts of growing GM crops need to be assessed on a case-by-case basis using a holistic approach. LCA is a valuable technique for helping to undertake such assessments.

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Life-Cycle Assessment (LCA) was used to assess the potential environmental and human health impacts of growing genetically-modified (GM), herbicide-tolerant sugar beet in the UK and Germany compared with conventional sugar beet varieties. The GM variety results in lower potential environmental impacts on global warming, airborne nutrification, ecotoxicity (of soil and water) and watercourse enrichment, and lower potential human health impacts in terms of production of toxic particulates, summer smog, carcinogens and ozone depletion. Although the overall contribution of GM sugar beet to reducing harmful emissions to the environment would be relatively small, the potential for GM crops to reduce pollution from agriculture, including diffuse water pollution, is highlighted.