Figure 1From: Serotype diversity and antimicrobial susceptibility profiles of Actinobacillus pleuropneumoniae isolated in Italian pig farms from 2015 to 2022Location of sampled pig farms. Location of pig farms experiencing APP outbreaks during 2015–2022 and included in the present study. Circle colours and background shading represent, respectively, the serotypes isolated within each farm and the density of swine in each province, as detailed in the figure legend.Back to article page