Studies on modifications of the sampling interval and size in the framework of CSF surveillance of wild boar.

Classical swine fever is a serious viral animal disease affecting pigs and wild boar. In wildlife population surveys data are often reported as small-area counts in time and space. Resources are tremendous to detect low virological prevalence for CSF in wild boar. Nevertheless up to 1.2 / 5.1 samples per sqkm were taken per month / year in some regions of Germany. A methodology was applied to show, that modifications of the sampling interval and / or the sample size will save resources. The probability of the detection of the infection can only be guaranteed until a certain limit.