Revue scientifique et technique
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Rev. - Off. Int. Epizoot. · Aug 2004
ReviewThe role of wildlife in emerging and re-emerging zoonoses.
There are huge numbers of wild animals distributed throughout the world and the diversity of wildlife species is immense. Each landscape and habitat has a kaleidoscope of niches supporting an enormous variety of vertebrate and invertebrate species, and each species or taxon supports an even more impressive array of macro- and micro-parasites. Infectious pathogens that originate in wild animals have become increasingly important throughout the world in recent decades, as they have had substantial impacts on human health, agricultural production, wildlife-based economies and wildlife conservation. ⋯ These zoonotic diseases from wild animal sources all have trends that are rising sharply upwards. In this paper, the authors discuss the causal factors associated with the emergence or re-emergence of these zoonoses, and highlight a selection to provide a composite view of their range, variety and origins. However, most of these diseases are covered in more detail in dedicated papers elsewhere in this Review.
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Rev. - Off. Int. Epizoot. · Apr 2004
ReviewSynergies between veterinarians and para-professionals in the public and private sectors: organisational and institutional relationships that facilitate the process of privatising animal health services in developing countries.
The delivery of veterinary services in most developing countries was, until recently, considered to be the responsibility of the public sector. However, over the past four decades, economic constraints and the imposition of structural adjustment policies (SAPs) have led to a gradual decline in public sector investment in real terms and thus a reduction in the quality and quantity of services available to livestock keepers. Many governments acknowledged that they were no longer able to provide services that were essentially of a 'private good' nature and introduced radical policy changes which sought to introduce the concepts of a market orientated approach towards agriculture and livestock production in particular. ⋯ The author illustrates how the experiences of a number of projects in Tanzania were used to propose a definition of 'supervision' in law. The definition offers an opportunity to overcome the fear of compromising standards of delivery of animal health services through the deployment of para-professionals. In addition, such functioning provides employment opportunities for private veterinarians in rural areas where access to formal primary animal health services would otherwise be denied and may contribute to the process of quality assurance of national veterinary services in developing countries.
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Rev. - Off. Int. Epizoot. · Dec 2001
Practice Guideline GuidelineAntimicrobial resistance: monitoring the quantities of antimicrobials used in animal husbandry.
This guideline, developed by the Office International des Epizooties for the monitoring of the quantities of antimicrobials used in animal husbandry, provides the methodology required to assess the amounts of antimicrobials used, to supply data to be used for risk analysis and to improve guidance on the appropriate use of antimicrobials. Information may be gathered from a number of sources, such as the competent authorities, industry and users. The usefulness of different types of information is discussed and recommendations are given on how to collect detailed information, each year, on the antimicrobial quantities used per class and active substance. Information should also be collected on the route of administration (oral and parenteral) and the animal species.
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Influenza is a highly contagious, acute illness which has afflicted humans and animals since ancient times. Influenza viruses are part of the Orthomyxoviridae family and are grouped into types A, B and C according to antigenic characteristics of the core proteins. Influenza A viruses infect a large variety of animal species, including humans, pigs, horses, sea mammals and birds, occasionally producing devastating pandemics in humans, such as in 1918, when over twenty million deaths occurred world-wide. ⋯ Pigs have been considered the leading contender for the role of intermediary because these animals may serve as hosts for productive infections of both avian and human viruses and, in addition, the evidence strongly suggests that pigs have been involved in interspecies transmission of influenza viruses, particularly the spread of H1N1 viruses to humans. Global surveillance of influenza is maintained by a network of laboratories sponsored by the World Health Organization. The main control measure for influenza in human populations is immunoprophylaxis, aimed at the epidemics occurring between pandemics.
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West Nile virus (WNV) has emerged in recent years in temperate regions of Europe and North America, presenting a threat to both public and animal health. The most serious manifestation of infection is fatal encephalitis in humans and horses, as well as mortality in certain domestic and wild birds. ⋯ During this outbreak, mortality was observed in humans, horses, a cat and numerous species of wild birds, particularly members of the family Corvidae (crows). The author reviews basic information and summarises recent developments in the epidemiology and epizootiology of WNV.