The study of health disparities and the social determinants of health has resulted in the call for public health researchers to investigate the mid- and upstream factors that influence the incidence of chronic diseases (Adler & Rehkopf, 2008; Berkman, 2009; Braveman P. , 2006; Braveman & Gottlieb, 2014; Krieger, 2011; Rose, 1985). Social ecological models (SEMs) provide important conceptual tools to inform this research and practice (Krieger, 2011; Golden & Earp, 2012; Story, Kaphingst, Robinson O'Brien, & Glanz, 2008; Glanz, Rimer, & Lewis, 2002). These models can help us look at the social and physical environments in rural Arizona communities and consider how health policies and environmental interventions address mediating factors, such as disparities in access to fresh food, that contribute to ill health in marginalized, rural, populations. Rural residents are at greater risk for obesity than their urban counterparts (Jackson, Doescher, Jerant, & Hart, 2006; Story, Kaphingst, Robinson O'Brien, & Glanz, 2008). And while human life expectancy has steadily increased over the past thousand years, current projections indicate that the rise in obesity-related illnesses will soon result in its decline (Olshansky, et al., 2005). One reason for this decline, may be the reduced availability of healthy food – an important predictor of positive health outcomes including reduced obesity and chronic disease - in many parts of the United States (Brownson, Haire-Joshu, & Luke, 2006; Ahen, Brown, & Dukas, 2011; Braveman & Gottlieb, 2014; Braveman, Egerter, & Williams, 2011). The United States Department of Agriculture (USDA) defines food deserts as geographic areas in which there is limited access to grocery stores and whose populations have a high rate of poverty. In Arizona, 24% of the rural census tracts are considered food deserts; compared to an average of eight percent of rural census tracts across the nation (United States Department of Agriculture, 2013). Food deserts are one example of the upstream factors influencing the health of rural populations. Local health departments have been encouraged through the National Association for City and County Health Officials (NACCHO) and through the Public Health Accreditation Board (PHAB) to conduct community health assessments (CHAs) in order to identify unique contexts and community resources, health disparities, and the social determinants of health as well as potential areas for advocacy, policy change, environmental interventions, and health promotion interventions. Public health challenges like chronic diseases, which have multiple causes, can be explored in-depth through CHAs. CHAs often contain recommendations for action and/or are followed by community health improvement plans (CHIPs) which help local health departments prioritize resources and set measurable goals. In Florence, AZ recommendations made in a CHA are being acted upon by a non-profit agency, the Future Forward Foundation (3F). This investigation explores two interrelated issues regarding the use of CHAs and CHIPs as practical tools to set public health priorities. First, what makes a CHA useful to rural public health practitioners? What methods of conducting a CHA and subsequently analyzing the data results in actionable policy recommendations and/or environmental level interventions? Second, to what extent can public health agencies engage nontraditional partners to work in partnership to address the social determinants of health? As an example, I will look at the impact of a volunteer-based non-profit agency, located in a rural food desert on improving the social and physical nutrition environment as recommended by a local CHA. This inquiry will provide insights to public health practitioners seeking to identify and implement policy and environmental change addressing complex, multi-causal, public health issues, and provide insights regarding engaging nontraditional partners who may not self-identify as public health agencies.

A influenza aviária é uma enfermidade viral causada por vírus influenza A que acomete várias espécies de aves. No Brasil, a influenza aviária é considerada uma doença exótica, uma vez que os subtipos H5 e H7 nunca foram detectados. O Ministério da Agricultura, Pecuária e Abastecimento realiza vigilância permanente para esta enfermidade nos plantéis comerciais de produção avícola e também em aves de subsistência criadas no entorno de sítios de aves migratórias com o intuito de detectar precocemente a introdução dos subtipos H5 e H7 no país. No entanto, se desconhece a situação sanitária das aves de subsistência no que se refere à infecção por outros subtipos do vírus da influenza aviária. Considerando a importância deste tipo de criação como fonte de alimentos e de rendimentos em comunidades de baixa renda e o risco que provavelmente representa para a introdução da influenza aviária no Brasil, o objetivo deste trabalho foi monitorar as criações de aves de subsistência criadas no entorno de sítios de aves migratórias no período de 2011 a 2015, a fim de verificar a circulação de todos os subtipos do vírus da influenza aviária (AIV). Foram colhidas amostras de soro e suabes de traqueia e cloaca de 2816 aves criadas em onze diferentes sítios de aves migratórias localizados em sete estados brasileiros, totalizando 391 explorações de fundo de quintal amostradas. As amostras de soro (n = 2716) foram submetidas a triagem para pesquisa de anticorpos para a proteína NP do influenza A utilizando-se um kit comercial de ELISA competitivo, com posterior subtipificação das amostras positivas pela técnica de inibição da hemaglutinação para os dezesseis subtipos do vírus influenza A. Os suabes de cloaca e traqueia foram submetidos à prova de PCR em tempo real para detecção do RNA do vírus influenza A. Não foram detectados anticorpos para os subtipos H5 e H7 do AIV, mas anticorpos para os subtipos H1, H3, H4, H6, H8, H9, H10, H12, H13 e H16 foram identificados em aves oriundas de nove dos onze sítios. O RNA do AIV foi detectado em apenas três amostras pertencentes a uma mesma propriedade e nenhum vírus hemaglutinante foi isolado a partir deste material. Os resultados obtidos permitem concluir que os vírus de influenza aviária de baixa patogenicidade circulam em aves de subsistência criadas no entorno de sítios de aves migratórias no Brasil e alertam para a importância da ampliação da vigilância ativa nesta população / Avian influenza is a viral disease caused by an influenza A virus and affects various avian species. Avian influenza is considered an exotic disease in Brazil, since H5 and H7 notifiable subtypes have never been detected. The Ministry of Agriculture, Livestock and Food Supply carries out permanent surveillance for avian influenza in commercial poultry production flocks and also in backyard poultry raised in the vicinity of concentration areas of migratory birds with the purpose of detecting the early introduction of H5 and H7 subtypes in the country. However, the health status of backyard poultry in relation to infection by other avian influenza subtypes is unknown. Considering the importance of this kind of family production system as a source of food and revenue for low-income communities and the risk it probably represents for the introduction of avian influenza in Brazil, the aim of this work was monitoring backyard poultry raised in the vicinity of concentration areas of migratory birds from 2011 to 2015 to verify the circulation of all avian influenza virus (AIV) subtypes. Serum samples and cloacal and tracheal swabs were sampled from 2816 birds raised in eleven migratory birds concentration areas located in seven Brazilian states, totaling 391 backyard poultry flocks harvested. Serum samples (n = 2716) were screened using a commercial competitive ELISA kit to detect specific antibodies for the NP protein of the influenza A virus and afterwards the positive samples were subtyped through inhibition hemagglutination assay for the sixteen subtypes of influenza A viruses. Cloacal and tracheal swabs were tested by real-time PCR for detection of the influenza A virus RNA. No antibodies for H5 and H7 subtypes were detected, but antibodies for subtypes H1, H3, H4, H6, H8, H9, H10, H12, H13 e H16 have been identified in birds from nine out of eleven areas. The influenza A virus RNA was detected only in three samples from one flock and no hemagglutinating viruses were isolated from these specimens. Results obtained in this work suggest that low pathogenic avian influenza viruses are circulating in backyard poultry flocks raised in concentration areas of migratory birds in Brazil and alert to the importance of the expansion of active surveillance in this population

This work considers the legal impediments to farming in an urban environment with a particular focus on the municipal bylaws that prohibit the keeping of hens in Saskatoon. The jurisdictional competency of Saskatoon to prohibit the keeping of urban hens is challenged under both municipal law and constitutional law, and more broadly, under the general premise that liberty interests should often prevail where a bylaw is arbitrary, misinformed, and restricts the pursuit of truth and human flourishing. Saskatoon’s urban hen prohibition is argued to be premised more on a form of moral reasoning that unnecessarily distinguishes between rural and urban environments, and less, if at all, on empirical evidence. Urban agriculture is often undertaken to address the environmental and social shortfalls of the global food system, such as the system’s connection with climate change, animal welfare issues, and challenges associated with the distribution of food. Moreover, urban agriculture is a means of protecting the rights of producers and consumers, as articulated by the food sovereignty movement. In this work, a claimant’s desire to advance food rights (including food sovereignty) through the keeping of urban hens is argued to engage the guarantee to freedom of expression and freedom of conscience under Canada’s Charter of Rights and Freedoms. This work explores the possibility of protecting the manifestation of social and environmental action through the guarantee to freedom of conscience. This work develops a cursory test for determining where a claimant’s guarantee to freedom of conscience is violated, drawing on the well established protection of freedom of expression and freedom of religion.

This thesis deals with the phenomenon of ecological recovery of ecotone backyard, a specific phenomenon in rural areas of the Czech Republic, focusing on the one hand synchronously, partly diachronic. Theoretically, based on the scientific literature discusses the topic first as a phenomenon in itself, then focuses on the description of the possibilities that may be related to the maintenance or revitalization of the ecotone recover or regain, both in the dimension of eco-environmentalist, and in the dimension of socio-ethnographic.

A influenza aviária é uma enfermidade viral causada por vírus influenza A que acomete várias espécies de aves. No Brasil, a influenza aviária é considerada uma doença exótica, uma vez que os subtipos H5 e H7 nunca foram detectados. O Ministério da Agricultura, Pecuária e Abastecimento realiza vigilância permanente para esta enfermidade nos plantéis comerciais de produção avícola e também em aves de subsistência criadas no entorno de sítios de aves migratórias com o intuito de detectar precocemente a introdução dos subtipos H5 e H7 no país. No entanto, se desconhece a situação sanitária das aves de subsistência no que se refere à infecção por outros subtipos do vírus da influenza aviária. Considerando a importância deste tipo de criação como fonte de alimentos e de rendimentos em comunidades de baixa renda e o risco que provavelmente representa para a introdução da influenza aviária no Brasil, o objetivo deste trabalho foi monitorar as criações de aves de subsistência criadas no entorno de sítios de aves migratórias no período de 2011 a 2015, a fim de verificar a circulação de todos os subtipos do vírus da influenza aviária (AIV). Foram colhidas amostras de soro e suabes de traqueia e cloaca de 2816 aves criadas em onze diferentes sítios de aves migratórias localizados em sete estados brasileiros, totalizando 391 explorações de fundo de quintal amostradas. As amostras de soro (n = 2716) foram submetidas a triagem para pesquisa de anticorpos para a proteína NP do influenza A utilizando-se um kit comercial de ELISA competitivo, com posterior subtipificação das amostras positivas pela técnica de inibição da hemaglutinação para os dezesseis subtipos do vírus influenza A. Os suabes de cloaca e traqueia foram submetidos à prova de PCR em tempo real para detecção do RNA do vírus influenza A. Não foram detectados anticorpos para os subtipos H5 e H7 do AIV, mas anticorpos para os subtipos H1, H3, H4, H6, H8, H9, H10, H12, H13 e H16 foram identificados em aves oriundas de nove dos onze sítios. O RNA do AIV foi detectado em apenas três amostras pertencentes a uma mesma propriedade e nenhum vírus hemaglutinante foi isolado a partir deste material. Os resultados obtidos permitem concluir que os vírus de influenza aviária de baixa patogenicidade circulam em aves de subsistência criadas no entorno de sítios de aves migratórias no Brasil e alertam para a importância da ampliação da vigilância ativa nesta população / Avian influenza is a viral disease caused by an influenza A virus and affects various avian species. Avian influenza is considered an exotic disease in Brazil, since H5 and H7 notifiable subtypes have never been detected. The Ministry of Agriculture, Livestock and Food Supply carries out permanent surveillance for avian influenza in commercial poultry production flocks and also in backyard poultry raised in the vicinity of concentration areas of migratory birds with the purpose of detecting the early introduction of H5 and H7 subtypes in the country. However, the health status of backyard poultry in relation to infection by other avian influenza subtypes is unknown. Considering the importance of this kind of family production system as a source of food and revenue for low-income communities and the risk it probably represents for the introduction of avian influenza in Brazil, the aim of this work was monitoring backyard poultry raised in the vicinity of concentration areas of migratory birds from 2011 to 2015 to verify the circulation of all avian influenza virus (AIV) subtypes. Serum samples and cloacal and tracheal swabs were sampled from 2816 birds raised in eleven migratory birds concentration areas located in seven Brazilian states, totaling 391 backyard poultry flocks harvested. Serum samples (n = 2716) were screened using a commercial competitive ELISA kit to detect specific antibodies for the NP protein of the influenza A virus and afterwards the positive samples were subtyped through inhibition hemagglutination assay for the sixteen subtypes of influenza A viruses. Cloacal and tracheal swabs were tested by real-time PCR for detection of the influenza A virus RNA. No antibodies for H5 and H7 subtypes were detected, but antibodies for subtypes H1, H3, H4, H6, H8, H9, H10, H12, H13 e H16 have been identified in birds from nine out of eleven areas. The influenza A virus RNA was detected only in three samples from one flock and no hemagglutinating viruses were isolated from these specimens. Results obtained in this work suggest that low pathogenic avian influenza viruses are circulating in backyard poultry flocks raised in concentration areas of migratory birds in Brazil and alert to the importance of the expansion of active surveillance in this population

L’Influenza Aviaire Hautement Pathogène H5N1 (IAHP à H5N1) a été déclaré en Thaïlande lors de plusieurs vagues épidémiques puis lors de cas sporadiques entre 2004 et 2008, et le risque persiste encore en Thaïlande. La plupart des foyers confirmés d’IAHP à H5N1 en Thaïlande ont eu lieu dans les populations de volailles de basse-cour. Les poulets de basse-cour sont élevés pour de nombreuses raisons, y compris pour un revenu supplémentaire. Ce commerce est géré informellement par les collecteurs de volailles qui peuvent être classés en collecteur-abatteur (TS), sous-collecteur (HT) et collecteur de collecteurs (TT). Ces collecteurs se déplacent entre villages avec les mêmes véhicules et matériel non nettoyés. Nous avons mesuré leurs activités commerciales dans l'espace et le temps. Nous avons développé un modèle spatial dynamique compartimental et stochastique de la filière de poulet de basse-cour dans une province. Nos résultats indiquent que ces échanges commerciaux peuvent contribuer à la propagation d’IAHP à H5N1 grâce au chevauchement des zones de collecte et aux distances parcourues. Des variations temporelles ont été observées lors de certaines grandes fêtes rituelles tel le Nouvel An chinois. Nous avons développé un modèle SIR couplé au modèle de la filière de poulets. Nous avons supposé que la maladie peut se propager par deux moyens : localement entre villages voisins et par les échanges commerciaux. Nous avons utilisé ce modèle infectieux de base pour tester plusieurs mesures de contrôle connexes. Nos résultats suggèrent que lors d’un foyer une interdiction totale et rapide de tous les échanges de volailles devrait être mise en oeuvre ainsi qu’une campagne de désinfection. / Highly pathogenic avian influenza H5N1 (HPAI H5N1) was recognized in Thailand by multiple epidemic waves and some sporadic cases between 2004 and 2008 but the risk of disease remerging in Thailand still remains up to present. Most of HPAI H5N1 confirmed outbreaks in Thailand occurred in backyard chicken populations. Backyard chickens are reared for many purposes including for additional cash income. Backyard chicken trade is informally managed by poultry traders which can be categorized into trader–slaughterhouse (TS), household trader (HT) and trader of trader (TT). These traders roam around different villages with the same unclean vehicle and facilities. Thus, their trade patterns in space and time are necessary to be elaborately studied. In our study, we developed a spatial compartmental stochastic dynamic model of backyard chicken trade network in a province of Thailand. Our model results indicated that the structure of poultry networks may contribute to HPAI H5N1 spread through overlapped catchment areas and long distance trades. Also, temporal variations of live poultry movements were observed during some major ritual festivals especially Chinese New Year. Subsequently, we developed an SIR model upon the dynamic model of backyard chicken trade network. It was assumed in this study that the disease can spread by two means: local spread to neighboring uninfected villages and spread by poultry traders. Then, we used this baseline infectious model to test multiple related control measures. Our ultimate results suggested that a complete ban of all poultry traders should be promptly implemented with poultry area disinfection campaign once the outbreak occurs.

Little is known about black fly pest species in Mississippi, other than research from the 1930s. A better understanding of the pest species that occur in Mississippi is important for human and animal health. My research focused on what species of black flies occur in Mississippi, their seasonality and distribution, and a detailed systematic survey of the primary pest species. Lastly, I attempted to quantify nuisance effects and economic impacts of black flies on people, backyard poultry, and livestock. I examined scientific literature and records of black flies occurring in the southeastern U.S., and particularly Mississippi. This search revealed several unpublished manuscripts by Dr. George H. Bradley on the biology, ecology, and control of black flies in the Mississippi Delta during the 1930s. These publications were curated and made available to the scientific community. I identified and compiled an annotated list of larval, pupal, and adult stages of black flies occurring in Mississippi, derived from specimens housed in the Mississippi State University Entomological Museum (MEM). These specimens had been collected over several decades by a variety of entomologists, students, and the public. In addition, I included data from thousands of black flies collected during this project. To assess seasonality and relative abundance of the primary pest black fly species in Mississippi, I systematically collected adult black fly specimens for two years, documenting species present, seasonality, adult emergence patterns, and associated meteorological conditions. These ten sites were selected based on Dr. George Bradley's extensive work and complaints from local county extension agents, veterinarians, and municipal public works personnel. For economic, human, and animal health impacts of black flies, I employed a four-tiered approach: 1) a survey of lay and medical literature for reports of human health problems from black fly bites, 2) a query of city and county public works personnel concerning black fly nuisance effects, 3) an analysis of statewide hospital outpatient International Classification of Diseases-9 (ICD-9) discharge data and lastly, 4) a statewide survey of backyard poultry owners to ascertain animal health and monetary impacts from black flies.

本文旨在研究臺北市樟新社區與一壽重殘照顧中心之互動，關於一個都市社區與精神障礙照顧機構之互動情形。分析主要分為兩部分，第一部份回溯一壽重殘照顧中心進入樟新社區之過程與情形，第二部分則分析樟新社區與一壽重殘照顧中心現階段之互動情形與未來建議。此外，本文也特別引用了「鄰避情結」（即「不要在我家後院」，”Not-In-My-Backyard syndrome”，簡稱NIMBY）作為論述基礎，試圖去檢視社區居民對於照顧中心的觀感，找出居民排斥或接納照顧中心之情形與原因等，並以衝突歷程的概念去剖析互動現狀。本研究目的則是希望透過個案研究，探討一個社區如何與精神障礙照顧服務機構互動，以從中找出能使社區居民與照顧服務機構二者共生、互助、融合之社區工作精隨。 本研究採質性研究之個案研究法，運用多重資料來源，並藉由觀察互動及深度訪談法來蒐集資料。其中深度訪談選取參與或了解本研究議題者作為訪談對象，包括規劃或承辦照顧中心進入社區的政府人員、來自照顧中心承辦單位及在照顧中心服務的管理者或工作者、對議題了解或熟悉社區事務的社區居民，藉此先行了解一壽重殘照顧中心進入社區之過程，包括照顧中心設立的過程與決策考量、照顧中心設立時與社區之衝突對立情形，以及政府單位、民間團體、社區居民三方對於衝突對立的認知、處理方式或行動。再者，也深度探究社區與機構過去至今的互動樣貌，包括社區與照顧中心的互動現況、社區居民對照顧中心設立觀感與鄰避情結、社區居民排斥或接納照顧中心之情形與原因，進而找出促進照顧中心融合社區或其他可能作法。 最後，根據本研究，提出相關政策建議如下： 一、檢討我國公有土地政策，以避免社福資源被稀釋； 二、讓障礙者參與決策過程，以落實真正的社區照顧； 三、在各地廣設心理衛生中心，讓障礙者能在原本的社區居住； 四、透過立法保障與教育倡導，以維護障礙者之居住權； 五、組織經營照顧中心志工團，並促進機構與社區的互惠及共生關係； 六、社區或機構相關工作者可採低姿態、柔性、創意方式，長期經營社區關係。 　　 關鍵字：社區、精神障礙、照顧機構、鄰避情結 / This research aims to study the interaction between the Zhangxin Community in Taipei City, an ordinary community in a big city, and the Taipei Yi-Shou Care Center, an institution for the psychiatric disabled. In the first part of the study, the researcher reviews the process of how the Taipei Yi-Shou Care Center moved into the Zhangxin community, whereas the second part analyzes the interaction between them and further provides suggestions for future cooperation. Besides, the researcher specifically adopts the concept of “Not-in-my-backyard syndrome” (NIMBY) as the theoretical background to survey the perceptions of the community residents toward the care center. Moreover, this study identifies the reasoning behind the acceptance or refuse of the move-in of the care center. Finally, this paper analyzes current status of interactions through the lens of conflict process. In summary, the aim of the research is to identify how community residents interact with an institution for the psychiatric disabled; furthermore, this study concludes the essence of community work in helping community residents and health care institution to cohabit, achieve mutual help, and integrate with each other. This research adopts case study method and collects data from multiple sources, such as onsite observation of the interaction and in-depth interview. For the in-depth interview, this study recruited key persons who have participated in and are aware of the issue. Therefore, the interviewees range from the government officials who have planned or taken charge of the move-in, the managers or workers of the care center or higher level of administration, to the Zhangxin community residents who are aware of the issue or general community affair. Accordingly, this paper first strives to investigate the move-in process, from the decision-making processes of the establishment of the Taipei Yi-Shou Care Center and the conflicts between the supporters and critiques during construction, to the perceptions, solutions, and actions toward the problem from the government, non-government organizations, and the residents. Second, the study thoroughly reviews the history of the interaction pattern between the residents and the institution, including the status quo of the interaction, the perception and the NIMBY of the residents toward the care center, and the situation and reasons of acceptance or refuse of the care center. In the end, this paper proposes possible means to help the care center better integrate with the community. This research proposes six suggestions for policy below: 1. Review the policy of public lands to avoid diluting the resources of social welfare. 2. Invite the disabled to participate in policy making to realize essential community care. 3. Set up community mental health centers to render the opportunities for the disabled to live in the original community. 4. Safeguard the right of residence of the disabled through legislation and education. 5. Organize volunteer groups of the care center, and improve the mutual benefit and cohabitation relationship between the institution and the community. 6. Community and institution workers manage long-term relationship with the community through modest attitude and in flexible, creative ways. Key words: community, psychiatric disability, care institution, Not-In-My-Backyard syndrome(NIMBY).

Urban agriculture is gaining more attention because of the current global trends such as urbanization and global economic and food crisis. The numbers of people who practice urban agriculture are estimated to 800 million. Based on this scale and other claims made about urban agriculture, it is argued that urban agriculture must be integrated to urban policy and planning. The premise of this dissertation was to understand motivations and determinants of urban agriculture, and how these can inform policy. The intention of the dissertation was to understand which urban residents in KwaMsane Township of uMkhanyakude district at KwaZulu-Natal province cultivated gardens and why. This was critical considering that generally urban areas are better than rural areas in terms of employment opportunities, infrastructure, and provision of basic services. In pursuit of this objective, the dissertation assessed KwaMsane Township households cultivating gardens in terms of assets, resources, and livelihood strategies with an aim of identifying motivations and determinant factors. The central idea of the dissertation from the onset was to validate the claim that since there is diversity in terms of household composition among those cultivating gardens there are different reasons for engaging with the activity. Using qualitative with borrowed participatory action tools, and quantitative (STATA 11) methods guided by the sustainable livelihood approach, the findings showed that only 9.7% of KwaMsane Township residents cultivated gardens. Of the households 92% were cultivating gardens and consuming their produce because of food demand due to large household size and children, their awareness about nutritional content of fresh vegetables from the soil, their agricultural background of cultivating gardens for subsistence purposes, high food prices from the market, and their lack of necessary skills to create and sell in the local market. The binary logistic regression showed that the determinants for households to cultivate gardens at KwaMsane Township were the presence of children, agricultural assets, governmental grants, and pensioners in a household. The two common factors between the above mentioned determinants were income and time availability which incentivized the practice. The dissertation also showed that the majority of gardeners from KwaMsane Township were in their productive ages (in this case between 29 and 61 years of age), females were more predominant in the activity with few males, and most of the gardeners were educated, and employed. However, gender, education, and employment had little relationship with cultivation of gardens. On average gardeners were older than non-gardeners. It was also shown that gardeners consisted of different income groups but mostly middle income group. The dissertation indicated that the use of urban agriculture by KwaMsane Township gardeners was informed by their motivations which contributed to food security, food sovereignty, and poverty alleviation. / Thesis (M.Dev.Studies)-University of KwaZulu-Natal, Durban, 2012.

O Javali (Sus scrofa scrofa) é uma espécie com ampla distribuição mundial e presente no Brasil. No Rio Grande do Sul, nos últimos anos, aumentaram os relatos de ataques e prejuízos causados pela presença de javalis asselvajados, sendo seus impactos negativos observados na degradação da vegetação nativa e água de superfície, na predação sobre a fauna e pecuária, e na possibilidade de transmissão de doenças para humanos e animais. A localização destes animais de vida livre e os possíveis fatores associados à sua presença são de extrema importância para a Gestão Ambiental e de Saúde Animal, uma vez que estes animais podem assumir um importante papel na introdução e disseminação de doenças para a pecuária gaúcha. Um estudo foi realizado nos anos de 2012 e 2014 no Estado do Rio Grande do Sul visando identificar possíveis fatores associados à presença destes animais de vida livre junto às propriedades de suínos de subsistência e apresentar uma análise espacial para identificar possíveis aglomerados da presença destes animais no Estado. As propriedades amostradas no estudo foram propriedades de suínos de subsistência, que apresentam uma menor tecnificação e biosseguridade quando comparada com as propriedades comerciais, o que pode facilitar essa interação. Foi utilizada uma amostragem proposital, onde foram selecionadas 640 propriedades em cada ano, primeiramente destinada para comprovar a ausência de atividade do vírus da Peste Suína Clássica nos criatórios do Rio Grande do Sul. Um questionário epidemiológico foi aplicado nas propriedades amostradas a fim de caracterizar e identificar as que apresentam relatos da presença de javalis asselvajados e elencar os possíveis fatores associados a sua presença. De todas as 640 propriedades amostradas, em 63 (9,8%) os proprietários relataram a possível presença de suínos asselvajados. Para análise dos fatores associados, foi utilizado um modelo de regressão de Poisson com variância robusta. No modelo final, os fatores associados à presença de javalis asselvajados foram: ter suínos criados próximos a reservas naturais (RP=2,29; IC 95% 1,10- 4,75), criação extensiva de suínos (RP=2,63; IC 95% 1,59- 4,34), ter criação de híbridos de javalis e suínos (RP=2,37; IC 95%1,09-5,19), criações de javalis na propriedade (RP=3,22; IC 95% 1,21- 8,58) e tamanho da propriedade em Km²(RP=0,54; IC 95% 0,26-1,11). Através da análise espacial foi possível identificar aglomerados de relatos da presença destes animais nas regiões sul e nordeste do Estado. Com esse estudo, espera-se dar auxilio do ponto de vista teórico a gestores públicos na implantação de políticas de saúde animal e de conservação que visem mitigar os possíveis riscos da interface animais de produção e vida selvagem. / The wild boar is a species from Eurasia which is widely distributed, being introduced in several countries, including Brazil, where it is considered an exotic invasive species. Considering the fact that pigs and wild boar belong to the same species and share the same pathogens, they have been regarded a reservoir for various harmful diseases for livestock. It is essential scientific knowledge about these free-living populations interactions with commercial pig farming. There are increasing reports numbers regarding attacks and damage caused by feral pig presence in Rio Grande do Sul. It has been causing negative impacts on native vegetation, wildlife predation, and the likelihood of transmitting diseases to humans and animals. This study aims to identify where feral pigs are in the state and assess factors associated with domestic pigs contact. The study was conducted in 2012 and 2014 using a purposive sampling, intended primarily to demonstrate and document the absence of classical swine fever virus in the farms within a free zone. A total of 640 subsistence farms were sampled throughout the state. An epidemiological questionnaire was applied in these farms to identify attack and/or wild boar existence in the vicinities of the property (response variable). A Poisson regression model was used to determine factors associated with wild boar presence in these farms through the estimates of prevalence ratio (PR) and a scan statistic was used to find possible cluster of the wild boars presence in Rio Grande do Sul state. The variables associated with wild boar presence were farms located near forest reserves (PR=2.29; CI 95% 1,10-4,45), Total farm Area (PR=0.54; CI 95% 0.26-1.11), Farms raising outdoors pigs (PR=2.63; CI 95% 1.59-4.34) and farms raising wild boars (PR=3.22; CI 95%1.21- .8.58) and farms raising hybrid with wild boar and swine (PR=2,37; CI 95% 1,09-5,19). In the Northeast region and the Southern state two clusters were identified and overlapped in each year of study. Factors associated with feral pig presence in backyard pig farms were primarily linked with environmental variables. Properties near forest reserves, indigenous reserves and rural settlements had higher prevalence ratio (PR). This can be explained due to feral animals necessity to find refuge areas for its maintenance and stabilization, which increases contact probability with domestic pigs raised round these areas. It is proposed to support decision makers on animal health implementation policies in order to mitigate contact´s risk between domestic species and wild animals, minimizing pathogens transmission probabilities among them.