Figure 1From: Spatial and temporal distribution of incidence of acquired equine polyneuropathy in Norway and Sweden, 1995-2012(top) Yearly and (bottom) monthly frequencies of case farms with acquired equine polyneuropathy. In a retrospective study of all farms (n = 136) with at least one reported case in Norway and Sweden in 1995-2012. The month in which the first case was noted at a farm was used as the index month of the outbreak for that farm (n = 135).Back to article page