Tuberculosis epidemiology in islands: insularity, hosts and trade

Because of their relative simplicity and the barriers to gene flow, islands are ideal systems to study the distribution of biodiversity. However, the knowledge that can be extracted from this peculiar ecosystem regarding epidemiology of economically relevant diseases has not been widely addressed. We used information available in the scientific literature for 10 old world islands or archipelagos and original data on Sicily to gain new insights into the epidemiology of the Mycobacterium tuberculosis complex (MTC). We explored three nonexclusive working hypotheses on the processes modulating bovine tuberculosis (bTB) herd prevalence in cattle and MTC strain diversity: insularity, hosts and trade. Results suggest that bTB herd prevalence was positively correlated with island size, the presence of wild hosts, and the number of imported cattle, but neither with isolation nor with cattle density. MTC strain diversity was positively related with cattle bTB prevalence, presence of wild hosts and the number of imported cattle, but not with island size, isolation, and cattle density. The three most common spoligotype patterns coincided between Sicily and mainland Italy. However in Sicily, these common patterns showed a clearer dominance than on the Italian mainland, and seven of 19 patterns (37%) found in Sicily had not been reported from continental Italy. Strain patterns were not spatially clustered in Sicily. We were able to infer several aspects of MTC epidemiology and control in islands and thus in fragmented host and pathogen populations. Our results point out the relevance of the intensity of the cattle commercial networks in the epidemiology of MTC, and suggest that eradication will prove more difficult with increasing size of the island and its environmental complexity, mainly in terms of the diversity of suitable domestic and wild MTC hosts.

La educación social como instrumento para la equidad social y la calidad del sistema educativo. Estudio centrado en la etapa de la E.S.O.

The thesis presented here responds to the title of Social education as a tool for social equity and quality of education. This thesis is focused in E.S.O, which aims to reveal and expose a globalized mode of professional experience living for a significant number of teachers and social educators in our educational system. analyze and demonstrate the administrative and educational approach through studies categories for which you can catalog the educational reality experienced by educators in schools, check if the context of the practice of social education is given in the best conditions in the education system, identify the influence of social education as a platform of educational intervention to mitigate the possibilities of failure in school that is present through three Autonomous Communities (Extremadura, Castilla-La Mancha and Andalucia) being distributed in a significant number of high schools and several private-subsidized schools Sponsored by religious institutions in the autonomous communities of Madrid and the Canary Islands and schools belonging to religious and social foundations based in Madrid in addition of several municipalities and nonprofit entities with public and private funds that have opted for a differentiated integrate social education in their respective schools of compulsory secondary education...