From: Predicting epidemics using search engine data: a comparative study on measles in the largest countries of Europe
no
E1
E2
Improvement (UK)
Improvement (ES)
1
4
−0.30%
−0.32%
2
3
−1.21%
−1.05%
0%
5.12%
6.04%
5
1.20%
1.33%