Fig. 2
Average seasonal distribution of the risk index and its components, tick hazard (DIN) and exposure (no. of days-visits). A loess function was used on the averages of the monthly DIN (no. of infected nymphs/100 m2) data and the number of park visitors in both years. The number of visitors to the park is displayed after being divided by 100,000, to allow for better graphic visualization. The average risk index over the months was calculated by multiplying the two previous variables and represents a relative probability of human-tick contacts in the population visiting the park over this period