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      Information management and ante-mortem inspection procedures for the emerging diseases control: Experiences acquired in the epidemiological surveillance of bluetongue and lumpy skin disease

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          Abstract

          The spread of exotic, emerging and reemerging diseases, has become, in the last years, one of the most important threats to the animal productions and public health, representing a new challenge for the European Community. In a global-market framework, where trade and contacts between countries are simplified, effective and well-developed surveillance systems are necessary. Multiple factors are, in fact, associated with the emergence of new, known or exotic diseases in this new economic panorama and for these reasons controls on animal imports, traceability and timeliness detection of infected animals should be considered the basis of a sound surveillance. In this work, we focused our attention on the management of Bluetongue and on the risk of introduction of the Lumpy Skin Disease in Italy, in order to describe the national and European surveillance systems for these diseases. In particular, we underlined the crucial role of information that reach the Official Veterinarian at the slaughterhouse concerning the epidemiological situation of the sending countries. Information that are important for the management of the ante-mortem inspection and for increasing the awareness of the Veterinary Inspectors of their role in the surveillance.

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          Bluetongue in Europe: past, present and future.

          The recent arrival in Northern and Western (NW) Europe of bluetongue virus (BTV), which causes the ruminant disease 'bluetongue', has raised the profile of this vector-borne ruminant disease and sparked discussions on the reasons for its sudden emergence so far north. This expansion has not happened in isolation and the disease has been expanding into Southern and Eastern Europe for the last decade. This shifting disease distribution is being facilitated by a number of different introduction mechanisms including the movement of infected livestock, the passive movement of infected Culicoides on the wind and, in NW Europe, an unknown route of introduction. The expansion of BTV in Europe has forced a re-evaluation of the importance of Palaearctic Culicoides species in transmission, as well as the importance of secondary transmission routes, such as transplacental transmission, in facilitating the persistence of the virus. The current European outbreak of BTV-8 is believed to have caused greater economic damage than any previous single-serotype outbreak. Although attempts are being made to improve the capacity of European countries to cope with future BTV incursions, the options available are limited by a lack of basic entomological data and limited virological surveillance.
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            Network analysis of Italian cattle trade patterns and evaluation of risks for potential disease spread.

            Livestock movement data represent a valuable source of information to understand the pattern of contacts between premises which may determine the spread of diseases. Social network analysis techniques have been used to analyse the movement patterns of cattle in Italy in 2007. A description of the structure of the Italian cattle industry is presented and the main trade flows and the relations between premises in relation to the potential spread of cattle diseases are investigated. Epidemic simulations have been carried out on the network build out of movement data using a network-based meta-population model. The simulations show the influence of the network structure on the dynamics and size of a hypothetic epidemic and give useful indications on the effects of targeted removal of nodes based on the centrality of premises within the network of animal movements.
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              Spread rate of lumpy skin disease in the Balkans, 2015-2016

              After its introduction in Turkey in November 2013 and subsequent spread in this country, lumpy skin disease (LSD) was first reported in the western Turkey in May 2015. It was observed in cattle in Greece and reported to the World Organization for Animal Health (OIE) in August 2015. From May 2015 to August 2016, 1,092 outbreaks of lumpy skin disease were reported in cattle from western Turkey and eight Balkan countries: Greece, Bulgaria, The Former Yugoslav Republic of Macedonia, Serbia, Kosovo, and Albania. During this period, the median LSD spread rate was 7.3 km/week. The frequency of outbreaks was highly seasonal, with little or no transmission reported during the winter. Also, the skewed distribution of spread rates suggested two distinct underlying epidemiological processes, associating local and distant spread possibly related to vectors and cattle trade movements, respectively.
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                Author and article information

                Journal
                Ital J Food Saf
                Ital J Food Saf
                IJFS
                Italian Journal of Food Safety
                PAGEPress Publications, Pavia, Italy
                2239-7132
                31 March 2018
                31 March 2018
                : 7
                : 1
                : 6922
                Affiliations
                [1 ]Department of Veterinary Medical Sciences, Alma Mater Studiorum- Università di Bologna , Ozzano dell’Emilia, Bologna
                [2 ]Complex Operative Unit of Veterinary Hygiene, Department of Public Health, Local Health Unit of Imola
                [3 ]Collective Prevention and Public Health Service, Department of Public Health, Region Emilia Romagna , Italy
                Author notes
                Department of Veterinary Medical Sciences, Alma Mater Studiorum-Università di Bologna, Ozzano dell’Emilia, Bologna, Italy. +39.051.2097330+39.051.2097356. marcello.trevisani@ 123456unibo.it

                Contributions: the authors contributed equally.

                Conflict of interest: the authors declare no potential conflict of interest.

                Article
                10.4081/ijfs.2018.6922
                5913700
                74ce1a3c-8093-4010-9350-c5c05d71518d
                ©Copyright A.Corradini et al., 2018

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 15 July 2017
                : 29 September 2017
                : 02 October 2017
                Page count
                Figures: 2, Tables: 1, Equations: 0, References: 30, Pages: 5
                Funding
                Funding: none.
                Categories
                Article

                surveillance systems,emerging diseases,ante-mortem inspection,lumpy skin disease,bluetongue

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