Fig. 4From: Risk analysis of African swine fever in Poland based on spatio-temporal pattern and Latin hypercube sampling, 2014–2017The SDE of the ASF outbreak in Poland in 2014–2017. n: the number of outbreaks in SDE. The maps were generated with QGIS Version 2.18 (https://www.qgis.org/en/site/index.html) and the base map was Bing Maps from QuickMapServicesBack to article page