Figure 4From: A 38-year study on Trichinella spp. in wild boar (Sus scrofa) of Latvia shows a stable incidence with an increased parasite biomass in the last decade Yearly estimate of red fox and raccoon dog heads in Latvia from 1990 to 2010. Red fox, line with boxes; raccoon dog, line with triangles. No data is available for the years 1999–2000.Back to article page