Figure 2From: Data-driven network modelling of disease transmission using complete population movement data: spread of VTEC O157 in Swedish cattle The number of holdings and cattle. The number of active holdings (having at least one animal) and the number of cattle in Sweden during the period 2005-07-01 to 2013-12-31. Data is from the national cattle database managed by the Swedish Board of Agriculture. The number of cattle is grouped by age category; Calves 0–119 days, Young stock 120–364 days and Adults older than 364 days. The dashed line is a loess smoother. The data was used in a simulation to explore the spread of VTEC O157 in the complete Swedish cattle population.Back to article page