A Guide For Multicentre Trials in High-Burden Countries
Each year, dozens of communities around the world face natural disasters, disease outbreaks, and other emergencies. Scientists think that a worldwide influenza outbreak will happen sometime in the next decade. The purpose of this guide is to help lo...cal leaders and community organizers bring together the community to help plan for disease outbreaks and other emergencies. This guide uses the lessons from communities that have already dealt with disease outbreaks and also uses other often-used tools to create discussion among community members and effectively garner their insight
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In this review, the editors will investigate the impact of eight WASH interventions in preventing (reducing the risk of) and controlling outbreaks in LMIC, with particular focus on three diseases of... current concern to the response community – cholera, Ebola, and Hepatitis E. Additionally, we will explore economic outcomes related to WASH interventions within an outbreak
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Effective implementation of WHO PEN, combined with other very cost effective population-wide interventions, will help even resource constrained settings to attain the global voluntary targets related to reduction of premature mortality and preventionof heart attacks and strokes.
This review focusses on the interactions between the etiologic agent of Chagas disease, Trypanosoma cruzi, and its triatomine vector. The flagellate mainly colonizes the intestinal tract of the insect. The effect of triatomines on trypanosomes is in...dicated by susceptibility and refractoriness phenomena that vary according to the combination of the strains. Other effects are apparent in the different regions of the gut. In the stomach, the majority of ingested blood trypomastigotes are killed while the remaining transform to round stages. In the small intestine, these develop into epimastigotes, the main replicative stage. In the rectum, the population density is the highest and is where the infectious stage develops, the metacyclic trypomastigote. In all regions of the gut, starvation and feeding of the triatomine affect T. cruzi. In the small intestine and rectum, starvation reduces the population density and more spheromastigotes develop. In the rectum, feeding after short-term starvation induces metacyclogenesis and after long-term starvation the development of specific cells, containing several nuclei, kinetoplasts and flagella. When considering the effects of T. cruzi on triatomines, the flagellate seems to be of low pathogenicity. However, during stressful periods, which are normal in natural populations, effects occur often on the behaviour, eg, in readiness to approach the host, the period of time before defecation, dispersal and aggregation. In nymphs, the duration of the different instars and the mortality rates increase, but this seems to be induced by repeated infections or blood quality by the feeding on infected hosts. Starvation resistance is often reduced by infection. Longevity and reproduction of adults is reduced, but only after infection with some strains of T. cruzi. Only components of the surface coat of blood trypomastigotes induce an immune reaction. However, this seems to act against gut bacteria and favours the development of T. cruzi.
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Evaluation report
September 2014
Revised National Tuberculosis Control Programme
Asthma is a common breathing condition that affects 20% of all children Asthma tends to run in families, although this is not always the case. You may have seen someone at school who uses an inhaler to help them breathe better and control asthma sy...mptoms.
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An estimated 59 000 people die from rabies each year. That’s one person every nine minutes of every day, 40% of whom are children living in Asia and Africa. As dog bites cause almost all human cases, we can prevent rabies deaths by increasing awareness, vaccinating dogs to prevent the ..."attribute-to-highlight medbox">disease at its source and administering life-saving treatment after people have been bitten. We have the vaccines, medicines, tools and technologies to prevent people from dying from dog-mediated rabies. For a relatively low cost it is possible to break the disease cycle and save lives
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Ebola Virus Disease Outbreak Response Plan in West Africa Annex 3