620 resultados para Eradication


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Caption title.

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Mode of access: Internet.

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Title changes: 1947-48: Summary of developments in the Mexican outbreak of foot-and-mouth disease.

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"In cooperation with Texas Agricultural Experiment Station."

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The region of Latin America and the Caribbean can boast a successful track record in the process of eradicating hunger: it is the only region in the world that has halved both the proportion of people who suffer from hunger (the target set in the Millennium Development Goals) and their absolute number (the target set at the World Food Summit of 1996). This publication aims to provide the region’s countries with up-todate and timely information on the status of food and nutrition security; on the role in eradicating hunger played by the different areas such as agriculture, agrifood trade and natural resources management; and on the possibility of successfully addressing the twin burden of malnutrition, in a context where the effects of climate change could threaten the progress achieved in Latin America and the Caribbean thus far. The CELAC Plan for Food and Nutrition Security and the Eradication of Hunger 2025 is a cross-cutting tool for achieving the Sustainable Development Goals of the 2030 Agenda for Sustainable Development; and it thus encourages the countries of Latin America and the Caribbean to redouble their efforts to identify key policy areas that will make it possible to speed up and consolidate the process of eradicating hunger and tackle the twin burden of malnutrition in the region, in which overweight and obesity are increasingly adding to that scourge.

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Background Compared to the general population, Helicobacter pylori infection is more common among adults with intellectual disability (ID) and is associated with greater levels of disability, maladaptive behaviour, and institutionalization. Little information exists about the effects of eradication therapy in this group, so we aimed to evaluate: (1) success of a standard H. pylori eradication protocol; (2) frequency of side-effects; and (3) impact of eradication on level of functional ability and maladaptive behaviour. Method A cohort of adults with ID underwent assessment of their levels of function and maladaptive behaviour, medical history, physical examination, and H. pylori testing using serology and faecal antigen tests. Some received standard H. pylori eradication therapy. Twelve months later, participants underwent repeat assessment, were grouped by change in H. pylori status and compared. Results Of 168 participants, 117 (70%) were currently infected with H. pylori at baseline, and 96 (82%) of the 117 were given standard H. pylori eradication therapy. The overall eradication rate was 61% but 31% reported side-effects. Institutional status of the participants, their level of behaviour or function, and number of comorbid medical conditions were not associated with failure of eradication. There were no statistically significant differences in level of behaviour or function, ferritin, or weight between the groups in whom H. pylori was eradicated or stayed positive. Conclusion Adults with ID have lower H. pylori eradication and higher side-effect rates than the general population. Levels of maladaptive behaviour and disability did not improve with eradication and thus greater levels of maladaptive behaviour or disability appear to be risk factors for, rather than consequences of, H. pylori infection.

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In 2000/2001 an outbreak of multi-drug resistant Acinetobacter bauntannii (MDR-AB) susceptible only to amikacin and tobramycin occurred in the intensive care unit (leU) of a general public adult hospital in Brisbane, Australia. Over a 2 year period, a total of 32 new isolates were identified; in all cases, the isolates were considered to be colonising rather than infecting agents. No environmental or other source could be identified. A combination of infection control measures and antibiotic restriction contributed to the eradication of this organism from the leu.

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Introduced mammals are major drivers of extinction and ecosystem change. As omnivores, feral pigs (Sus scrofa) are responsible for wholesale adverse effects on islands. Here, we report on the eradication of feral pigs from Santiago Island in the Galápagos Archipelago, Ecuador, which is the largest insular pig removal to date. Using a combination of ground hunting and poisoning, over 18,000 pigs were removed during this 30-year eradication campaign. A sustained effort, an effective poisoning campaign concurrent with the hunting program, access to animals by cutting more trails, and an intensive monitoring program all proved critical to the successful eradication. While low and fluctuating control efforts may help protect select native species, current eradication methods, limited conservation funds, and the potential negative non-target impacts of sustained control efforts all favor an intense eradication effort, rather than a sustained control program. The successful removal of pigs from Santiago Island sets a new precedent, nearly doubling the current size of a successful eradication, and is leading to more ambitious projects. However, now we must turn toward increasing eradication efficiency. Given limited conservation funds, we can no longer afford to spend decades removing introduced mammals from islands.

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The notion of being sure that you have completely eradicated an invasive species is fanciful because of imperfect detection and persistent seed banks. Eradication is commonly declared either on an ad hoc basis, on notions of seed bank longevity, or on setting arbitrary thresholds of 1% or 5% confidence that the species is not present. Rather than declaring eradication at some arbitrary level of confidence, we take an economic approach in which we stop looking when the expected costs outweigh the expected benefits. We develop theory that determines the number of years of absent surveys required to minimize the net expected cost. Given detection of a species is imperfect, the optimal stopping time is a trade-off between the cost of continued surveying and the cost of escape and damage if eradication is declared too soon. A simple rule of thumb compares well to the exact optimal solution using stochastic dynamic programming. Application of the approach to the eradication programme of Helenium amarum reveals that the actual stopping time was a precautionary one given the ranges for each parameter.