Original scientific paper

Some epidemiological aspects of classical swine fever in Croatia(2006-2008).

Marina Pavlak orcid.org/0000-0003-0618-0199 ; Department of Veterinary Economics and Analytic Epidemiology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Vanja Vrkić ; Department of Parasitology and Parasitic Diseases with Clinic, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Denis Cvitković ; Department of Veterinary Economics and Analytic Epidemiology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Sanja Šeparović ; State Veterinary Administration, Ministry of Agricultural, Fisheries and Rural Development
Anđelko Gašpar ; Croatian Veterinary Chamber
Marko Tadić ; Department of Veterinary Economics and Analytic Epidemiology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia

Abstract

The aim of this study was to present some aspects of epidemiological features of the classical swine fever (CSF) epidemic in Croatia between 2006 and 2008. Pig production before the CSF epidemic in the Vukovar- Sirmium County and the inflluence of some risk factors such as swill feeding and contact with wild boars, as well as temporal characteristics of the occurrence of CSF outbreaks have been investigated. The temporal data related to the occurrence of CSF outbreaks in Croatia and the data on pig production in the Vukovar-Sirmium County have been analyzed. The data related to pig production included the number of agricultural households keeping pigs, that is, the number of small pig farms and number of pigs in the Vukovar-Sirmium County. The data related to the occurrence of the CSF epidemic in Croatia included the days of occurrence of outbreaks and the time interval between two outbreaks from 17 July 2006 until 7 May 2008. The first outbreak of CSF occurred in the eastern part of Croatia in three municipalities of the Vukovar-Sirmium County, then spread into another 11 counties. At the time of CSF occurrence, there were 1,178 small pig farms observed and 16,034 pigs in that area. From the point of view of risk factors, at 532 (45.16%) out of the 1,178 observed pig farms, pigs were kept extensively while at 252 of them (21.39%) pigs were swill-fed. The analysis of the distribution of the number of CSF outbreaks by day diagnosed shows that new outbreaks were recorded 70 times at intervals of a minimum of one day and maximum of 86 days during the 621 days of the epidemic. The time interval between two new outbreaks was usually up to 10 days, mostly one day. The highest number of new outbreaks registered in the same day was 8 on the 235th day from the beginning of the epidemic.

Keywords

classical swine fever; Croatia; occurrence; time interval; risk factors

Hrčak ID:

66632

URI

https://hrcak.srce.hr/66632

Publication date:

21.2.2011.

Article data in other languages: croatian

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