The recreational and commercial importance of feral swine in Florida: Relevance to the possible introduction of African swine fever into the U.S.A (original) (raw)
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Preliminary serologic survey of selected diseases and movements of feral swine in Texas
2005
Feral swine (Sus scrofa) populations occur throughout eastern, central, and southern Texas, and their populations appear to be increasing. Despite their abundance and wide distribution, little is known about their range and interaction with domestic animals. In the last decade the national pork production industry has enforced an eradication program for economically detrimental swine diseases such as pseudorabies and brucellosis. It is hypothesized that feral hogs can be reservoirs that could reintroduce diseases to disease-free domestic swine herds. The objectives of this on-going project are to determine the prevalence of selected swine diseases that exist within feral hog populations in eastern and southern Texas and to determine the potential for disease transmission between feral and domestic swine. To date, feral hogs were trapped and ear-tagged (N = 212), and blood was obtained (N = 163) for serology testing for pseudorabies, brucellosis, and classic swine fever (CSF). Selected adults (N = 57) were fitted with GPS telemetry collars and released at their capture site. Prevalence of brucellosis and pseudorabies was 23.5% and 22.5%, respectively, for feral hogs in Texas. Of the hogs exposed to disease, feral hogs from southern Texas were 3 times as likely to have been exposed to pseudorabies than brucellosis; whereas, the opposite occurred for feral hogs from eastern Texas, which were 3 times more likely to have been exposed to brucellosis than pseudorabies. Prevalence of CSF in feral hogs is pending. Movements of feral hogs in southern Texas indicate that the potential for disease transmission to domestic pigs exists. Data collection will continue for approximately 1.5 years.
Frontiers in Veterinary Science
Classical Swine Fever (CSF) is an endemic disease in Cuba, and an eradication strategy by zones is planned by the Official Veterinary Service. The aim of this study was to identify high-risk areas of CSF and the risk factors associated with the disease occurrence in the Pinar del Río province, one of the prioritized areas in the eradication strategy. The outbreak occurrence at district level was analyzed through a 7-year period (2009 to 2015). A high-risk cluster (RR = 5.13, 95% CI 3.49-7.56) was detected during the last 2 years of the study period in the eastern half of the province, with 38 out of 97 districts included. The rate of CSF-affected holdings had a significant increase during 2014-2015 and seems to have occurred mainly in the high-risk cluster area. Swine population density by district (heads/km 2 ) and road length (km) by district were associated with the disease outbreak occurrence. These results provide new insights into the knowledge of the epidemiology of the disease in Cuban endemic conditions and can contribute to improving the control and the eradication strategy in this situation.
Descriptive epidemiology of endemic Classical Swine Fever in Cuba
Spanish Journal of Agricultural Research
In Cuba, Classical Swine Fever (CSF) has become an endemic disease since 1993 with several outbreaks each year despite the compulsory vaccination program implemented. To deepen the disease characterization is essential for improving the CSF control measures and to achieve its eradication. The aim of this study was to describe the epidemiological characteristics of CSF occurrences in Cuba during a seven-year period within the endemic situation. Data on CSF occurrence from January 2010 to December 2016 were analyzed. The seven-year period shows a tendency of the number of affected premises to increase (r=0.31, p=0.005) over time (month). Directional distribution (1SD ellipse) indicated a great dispersion of affected premises by year across the country with a trend to a higher occurrence to the west. It was demonstrated by the negative correlation (r=-0.893, p=0.007) between the longitude of the mean center of the ellipses over the years. The Kernel density indicated that the disease w...
Current status of African swine fever
CABI Agriculture and Bioscience
African swine fever is a serious viral disease of domestic pigs and Eurasian wild boars that poses a major threat to pig production. For more than thirty years after its discovery in East Africa it was limited to eastern and southern Africa, where it is believed to have originated. The ability of the causative virus to remain viable for long periods in raw or insufficiently cooked pork products has enabled it, through travel and trade, to spread widely throughout sub-Saharan Africa and to other continents. In the second half of the 20th century it had caused outbreaks in the majority of African countries where pigs are produced, as well as in a number of European countries, two of the Caribbean islands, and Brazil. By the turn of the century it had been eradicated from all non-African countries except the Italian island of Sardinia. In 2007 African swine fever arrived in the Republic of Georgia, and has subsequently spread insidiously into other Transcaucasian countries, Russia and ...
Classical swine fever: the global situation
Veterinary Microbiology, 2000
A historical and current perspective is given of classical swine fever and its impact on pig production in different regions of the world. Data were obtained from a variety of sources including returns to the Of®ce International des Epizooties, of®cial government reports, other published material and local information through personal contacts. The disease has been recognized for about 170 years and efforts to control it by of®cial intervention began in the nineteenth century. Despite this it remains a lingering problem in many parts of the world where it has both, an economic impact on swine production and a constraining effect on trade due to the measures necessary to prevent spread. #