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MeetingIntegrated Approaches to the Management of Food Safety throughout the Food Chain - The enter-net suveillance system 2001
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No results found.Enter-net is the international network for the surveillance of human gastrointestinal infections, which monitors salmonellosis and Verocytotoxin producing Escherichia coli (VTEC) O157. It involves all 15 countries of the European Union, plus Switzerland and Norway and is funded by the European Commission. International travel and international trade in food play an important role in the occurrence of foodborne infections. Events in one country now have the potential to affect many others. A co-ordinated international response is required to control this threat. Through recognition of outbreaks and investigation, timely exchange of information between experts in different countries can lead to effective international public health action. Exchange of data internationally can help eliminate potential vehicles of infection allowing authorities to concentrate their resources more effectively. For instance, if a rise in infection occurs only in one country it is likely that the source is in that country and not a result of imported goods. -
No Thumbnail AvailableBook (series)Manual on Bovine Spongiform Encephalopathy 1998
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No results found.Bovine spongiform encephalopathy (BSE) was first recognized and defined as a pathological entity in the United Kingdom in November 1986 (Wells et al., 1996). Initial epidemiological investigations and examination of archived brains indicated that the first cases occurred around April 1985. Subsequently, the largest freeborn epidemic of a transmissible spongiform encephalopathy (TSE) occurred which has had severe economic effects and has caused concern for public health. The initial clinical signs of this fatal neurological disease are non-specific, typically involving behavioural changes. As the clinical phase progresses the disease is typified by alterations in mental state and of sensation and ataxia. The majority of affected animals reach the advanced stages within two to three months from the onset, when slaughter on welfare grounds becomes necessary (Wilesmith et al., 1988). The disease affects adult animals, with a peak age at onset of four to five years of age. Both se xes and all breeds are equally susceptible. BSE can only be confirmed post-mortem by pathological examination of brain tissue. Histological examination of the hind brain has been the primary method for the statutory diagnosis in the United Kingdom (Wells et al., 1989). The histological changes are typical of the TSEs. Microscopic lesions in the central nervous system consist of bilaterally symmetrical, non inflammatory vacuolation of neuronal perikarya and grey matter neuropil. BSE is transmissible by parenteral inoculation of inbred strains of mice (Fraser et al., 1988) and cattle (Dawson, Wells and Parker, 1990). In cattle the incubation period is approximately 18 months using brain homogenates from natural terminal cases. -
Book (series)Report of the FAO Expert Consultation on the Trade Impact of Listeria in Fish Products. Amherst, MA, USA, 17-20 May 1999. 1999
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No results found.The globalization and growth of international trade in fish and fishery products in recent years has made these products one of the most important items traded in terms of value. Concerns regarding the safety of these products has prompted the emergence of a number of new regulations such as a zero-tolerance policy for Listeria monocytogenes in fishery products or the use of a risk based approach to establish maximum limits for Listeria in these products. The paper describes the findings of the FAO Expert Consultation on the Trade Impact of Listeria in Fish Products, held in the University of Massachusetts, Amherst, USA from 17 to 20 May 1999. It documents the current scientific knowledge regarding the risks of listeriosis in relation to fishery products, discusses current regulations and their impact on trade and provides guidelines for the prevention and control of Listeria in these products.
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