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The World Health Organization (WHO) has published an annual report on global control of tuberculosis (TB) every year since 1997. The main purpose of the report is to provide a comprehensive and up-to-date assessment of the TB epidemic and progress made in TB care and control at global, regional and country levels. This fifteenth annual report contains more up-to-date information than any previous report in the series, following earlier data collection and the completion of the production cycle within a calendar year. This report includes the same wealth of information as previous reports in the series, but three new features are worth highlighting. First, the data are more up-to-date than th...
Multidrug-resistant tuberculosis (MDR-TB) has been recorded at the highest rates ever, according to this new report that presents findings from the largest survey to date on the scale of drug resistance in tuberculosis. This fourth global report is based on information collected between 2002 and 2006 on 90,000 TB patients in 81 countries. It also found that extensively drug-resistant tuberculosis (XDR-TB), a virtually untreatable form of the respiratory disease, has been recorded in 45 countries. The primary aim of this report is to share survey and surveillance data on drug resistance in TB. The data presented here are supplied largely by the program managers who have led the work on surveys, but also heads of reference laboratories as well as principle investigators that may have been hired to assist the national Tuberculosis Program with the study.
"The World Health Organization (WHO) Global Tuberculosis Report 2012 provides the latest information and analysis about the tuberculosis (TB) epidemic and progress in TB care and control at global, regional and country levels. It is based primarily on data reported by WHO's Member States in annual rounds of global TB data collection. In 2012, 182 Member States and a total of 204 countries and territories that collectively have more than 99% of the world's TB cases reported data."--Executive summary, p. 1
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La evaluación de las pruebas diagnósticas se ha tratado, en general, sin un criterio universalmente aceptado. En diferentes estudios aparecen términos como sensibilidad, especificidad, eficiencia, exactitud, utilidad, valor, eficacia y efectividad, pero a menudo el significado de los mismos es ambiguo. La ausencia de acuerdo, tanto en el concepto, como en la medida de la calidad de una prueba diagnóstica, crea una situación de confusión a la hora de resolver cuestiones concretas. La Curva Roc forman parte de un estadístico a fin de definir puntos de corte (valores mínimos) de una prueba diagnóstica. En esta serie investigación de la Universidad Católica de Santa Fe se analiza la i...
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