Figure 2From: Determinants of the geographic distribution of Puumala virus and Lyme borreliosis infections in BelgiumSpatial variation in incidence rates of human infections in Belgium. (a) Spatial distribution of PUUV mean annual incidence rates per municipality for the 1994–2004 period. (b) Spatial distribution of Lyme borreliosis mean annual incidence rates per municipality for the 1998–2004 period. Discretization method: natural breaks (Jenks). Data source: Institute of Public Health (IPH).Back to article page