Relationships between relative changes in TBE case numbers in 2009, unemployment and various ocio-economic indices. A) Increase in unemployment in 2009 relative to 2008, R2 = 0.437, p = 0.010. B) In-work risk of poverty 2008, R2 = 0.437, p = 0.014. C) Percentage expenditure on food, R2 = 0.745, p < 0.001. D) Gini coefficient 2008, R2 = 0.524, p = 0.005. Countries as listed in Figure 1 legend: 'western' European countries (blue dots), central and eastern European countries (pink dots).