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Cholera and the Ecology of Vibrio cholerae by B.S. Drasar,B.D. Forrest Pdf
Only in recent years has it been revealed that V. cholerae is a normal inhabitant of esturine and riverine waters. This means that even if the disease can be eliminated from human population by vaccines etc. the vibrio will continue to survive independently in the environment. It is likely that the environment is the source of epidemic strains. This is the first book to focus on the implication of these discoveries.
Cholera by Dhiman Barua,William B. Greenough III Pdf
Research on cholera has contributed both to knowledge of the epidemic in particular, and to a broader understanding of the fundamental ways in which cells communicate with each other. This volume presents current knowledge in historical perspective to enable the practitioner to treat cholera in a more effective manner, and to provide a comprehensive review for the researcher.
Epidemiological and Molecular Aspects on Cholera by T. Ramamurthy,S.K. Bhattacharya Pdf
Though cholera is an ancient disease, its perennial occurrence in several parts of the world has attracted many researches to find ways and means to combat the disease. The prevailing seventh pandemic cholera is dominating since 1961, but the dimension of the disease has taken several silhouettes, as the genetic structure and functions of the Vibrio cholerae has changed to a great extent. Several recent studies have shown that transformation of the pathogen at the molecular level has ameliorated several cholera outbreaks and epidemics of with successive new clones of V. cholerae. This comprehensive compilation, written by eminent international researchers reviews the epidemiology of cholera in Africa, Asia, Russia and Latin Americas. The other chapters contributed by acclaimed authors cover various aspects on evolution, polysaccaharide biosynthesis, SXT element, integrons, small molecule signalling systems, flagellar synthesis, filamentous phages, pathogenic role of proteases and hemolysin, and other putative virulence factors. In addition, ecology of V. cholerae and management of cholera were also discussed in detail. This book will be good source of information to all researchers with interests in infectious diseases, microbiology and molecular biology.
Epidemiological and Molecular Aspects on Cholera by T. Ramamurthy,S.K. Bhattacharya Pdf
Though cholera is an ancient disease, its perennial occurrence in several parts of the world has attracted many researches to find ways and means to combat the disease. The prevailing seventh pandemic cholera is dominating since 1961, but the dimension of the disease has taken several silhouettes, as the genetic structure and functions of the Vibrio cholerae has changed to a great extent. Several recent studies have shown that transformation of the pathogen at the molecular level has ameliorated several cholera outbreaks and epidemics of with successive new clones of V. cholerae. This comprehensive compilation, written by eminent international researchers reviews the epidemiology of cholera in Africa, Asia, Russia and Latin Americas. The other chapters contributed by acclaimed authors cover various aspects on evolution, polysaccaharide biosynthesis, SXT element, integrons, small molecule signalling systems, flagellar synthesis, filamentous phages, pathogenic role of proteases and hemolysin, and other putative virulence factors. In addition, ecology of V. cholerae and management of cholera were also discussed in detail. This book will be good source of information to all researchers with interests in infectious diseases, microbiology and molecular biology.
Vibrio ecology, pathogenesis and evolution by Rita R Colwell,Daniela Ceccarelli Pdf
Vibrios are Gram-negative bacilli that occur naturally in marine, estuarine, and freshwater systems. Some species include human and animal pathogens capable of causing gastroenteritis, wound infections, cholera, and fatal septicemia. Over the past decades, cutting edge research on Vibrio genomics has promoted a tremendous advance in our knowledge of these pathogens. Significant developments include the discovery of emerging epidemic clones, tracking the spread of new strain variants, and an intensified appreciation of the role of mobile genetic elements in antibiotic resistance spread as well as pathogenesis. Furthermore, improved understanding of the interaction of Vibrios with a variety of living organisms in the aquatic environment has documented the significant role of environmental reservoirs in their seasonal cycle favoring persistence of the pathogen during inter-epidemic periods and enhancing disease transmission. This Research Topic is dedicated to our current understanding in these areas and will bring together leading experts in the field to provide a deep overview of Vibrios ecology and evolution, and will suggest the pathway of future research in this field.
Presents the latest molecular studies of virulence, colonization, gene regulation, and the O1 antigen. Gives an in-depth and analytical approach to the epidemiology of cholera that includes outbreak investigations, case-control studies, and surveillance functions. Describes the molecular approach to epidemiologic problems and questions. Tracks the global spread of cholera by genetically defining individual strains. Addresses possible intervention and prevention strategies, including the latest vaccines, and their public health relevance.
Advances in Research on Cholera and Related Diarrheas by S. Kuwahara,N.F. Pierce Pdf
The United States-Japan Cooperative Medical Science Program was initiated in 1965 by joint agreement between the President of the United States and the Prime Minister of Japan. The purpose of the Program was to promote cooperative biomedical research between the two countries, especially on health problems of recognized impor tance in Asia. Cholera was designated as one topic of mutual interest. Panels of scientists from each country were formed, and these met to select priority areas for research. The Cholera Panels initially defined two major goals: 1) improved and simplified therapy for cholera, and 2) better methods for immunization. Progress in the pursuit of these goals led to the recognition that bacteria other than Vibrio cholerae are also important causes of acute dehydrating diarrhea which resembles cholera in its manifestations and patho genesis; most notable among these are enterotoxinogenic strains of Escherichia coli. Accordingly, panel guidelines were expanded to include all diarrheal diseases that involve fluid loss caused by an enterotoxin. More recently, studies have shown that vibrios, including V. cholerae, have a distinct environmental life cycle that is probably an impor tant factor in the epidemiology of vibrio infections. For this reason, the panel guidelines were again expanded to include studies on the environmental ecology of vibrios. A major project of the Joint Cholera Panels has been the organization and spon sorship of an annual conference on cholera and related diarrheal diseases.
Cholera is one of the oldest known and best-understood infectious diseases. Thriving in unclean water, it remains a prevalent killer in countries where sanitary water sources are scarce. This book describes the history of this infectious disease and discusses characteristics that enable the microorganism to cause serious health problems.
Vibrio Cholerae by Shah M. Faruque,G. Balakrish Nair Pdf
The last decade has witnessed the unravelling of remarkable new insights into the biology of Vibrio cholerae. These include the discovery of the filamentous phage that encodes cholera toxin, the existence of two chromosomes in V. cholerae and the sequencing of the whole genome of the V. cholerae O1 strain N16961. These pioneering works led to an inevitable escalation in the amount of data generate. In this book we have endeavoured to distill the essence of this mighty deluge of information to produce a timely review of the genomics and molecular biology of this important human pathogen. Written by leading V. cholerae experts, the chapters review the most important cutting-edge genetic facets of V. choleraeincluding its genomic organization, population genetics, molecular epidemiology, and synchronized regulation of gene expression. Other topics include the molecular basis for enhanced transmissibility of cholera during epidemics, survival of the pathogen in the environment, and above all the evolution of the species to attain increased fitness both as a pathogen and an environmental organism. Essential reading for everyone with an interest in Vibrio and recommended reading for other scientists working in microbial pathogenesis, microbial genomics and antimicrobial research.
Disease Ecology by Sharon K. Collinge,Chris Ray Pdf
Many infectious diseases of recent concern, including malaria, cholera, plague, and Lyme disease, have emerged from complex ecological communities, involving multiple hosts and their associated parasites. Several of these diseases appear to be influenced by human impacts on the environment, such as intensive agriculture, clear-cut forestry, and habitat loss and fragmentation; such environmental impacts may affect many species that occur at trophic levels below or above the host community. These observations suggest that the prevalence of both human and wildlife diseases may be altered in unanticipated ways by changes in the structure and composition of ecological communities. Predicting the epidemiological ramifications of such alteration in community composition will require strengthening the current union between community ecology and epidemiology. Disease Ecology highlights exciting advances in theoretical and empirical research towards understanding the importance of community structure in the emergence of infectious diseases. To date, research on host-parasite systems has tended to explore a limited set of community interactions, such as a community of host species infected by a single parasite species, or a community of parasites infecting a single host. Less effort has been devoted to addressing additional complications, such as multiple-host-multiple-parasite systems, sequential hosts acting on different trophic levels, alternate hosts with spatially varying interactions, effects arising from trophic levels other than those of hosts and parasites, or stochastic effects resulting from small population size in at least one alternate host species. The chapters in this book illustrate aspects of community ecology that influence pathogen transmission rates and disease dynamics in a wide variety of study systems. The innovative studies presented in Disease Ecology communicate a clear message: studies of epidemiology can be approached from the perspective of community ecology, and students of community ecology can contribute significantly to epidemiology.
Environment, Health and Population Displacement by Andrew E. Collins Pdf
First published in 1998, this book contributes to our understanding of emergent and resurgent infectious diseases and health ecology in developing areas through detailed spatial and temporal analysis of recent cholera and bacillary dysentery epidemics in Mozambique. The book examines the influence of environmental, demographic and socio-economic changes on the nature and context of cholera and bacillary dysentery. It provides a detailed background to the two diseases based on their ecology and contemporary status in human communities together with analysis of extensive primary field data centered on three key urban areas in central Mozambique. Influences are weighed up against factors relating to the individual ecologies of the different pathogens, primary subsistence, and the impacts of Mozambique's history of conflict and development policies on human vulnerability. The extensive case study material is used to provide clear indications of appropriate ways forward in the field of environmental health management.
World Health Organization,World Health Organization. Global Task Force on Cholera Control
Author : World Health Organization,World Health Organization. Global Task Force on Cholera Control Publisher : Unknown Page : 76 pages File Size : 49,7 Mb Release : 1993 Category : Medical ISBN : UCSC:32106017520575
Author : Charles L. Briggs Publisher : Univ of California Press Page : 456 pages File Size : 55,8 Mb Release : 2003-01-16 Category : Social Science ISBN : 9780520938526
Stories in the Time of Cholera by Charles L. Briggs Pdf
Cholera, although it can kill an adult through dehydration in half a day, is easily treated. Yet in 1992-93, some five hundred people died from cholera in the Orinoco Delta of eastern Venezuela. In some communities, a third of the adults died in a single night, as anthropologist Charles Briggs and Clara Mantini-Briggs, a Venezuelan public health physician, reveal in their frontline report. Why, they ask in this moving and thought-provoking account, did so many die near the end of the twentieth century from a bacterial infection associated with the premodern past? It was evident that the number of deaths resulted not only from inadequacies in medical services but also from the failure of public health officials to inform residents that cholera was likely to arrive. Less evident were the ways that scientists, officials, and politicians connected representations of infectious diseases with images of social inequality. In Venezuela, cholera was racialized as officials used anthropological notions of "culture" in deflecting blame away from their institutions and onto the victims themselves. The disease, the space of the Orinoco Delta, and the "indigenous ethnic group" who suffered cholera all came to seem somehow synonymous. One of the major threats to people's health worldwide is this deadly cycle of passing the blame. Carefully documenting how stigma, stories, and statistics circulate across borders, this first-rate ethnography demonstrates that the process undermines all the efforts of physicians and public health officials and at the same time contributes catastrophically to epidemics not only of cholera but also of tuberculosis, malaria, AIDS, and other killers. The authors have harnessed their own outrage over what took place during the epidemic and its aftermath in order to make clear the political and human stakes involved in the circulation of narratives, resources, and germs.