Table 1.

Overview of the main experiments. This shows the diseases and countries we studied with properties of each, as well a summary of each of the 19 contexts. Bold r² indicates the high-performing contexts examined in more detail in the results section.

Country Total Wikipedia traffic from country [175] Language Country’s traffic in language [175] Total language traffic from country [174] Official data source			Colombia 0.5% Spanish 89% 7.6% [75]	Germany 7.5% German 75% 79% [74]	Israel 0.5% Hebrew 54% 93% [111]	United States 22% English 94% 42% [27]
Disease	Timing
Chlamydia	erratic	max(r2) root article total cases			0.08 4.0×103	0.11 Chlamydia infection 3.4 × 106
Dengue fever	seasonal	max(r2) root article total cases	0.91 Dengue 5.4 × 105	0.31 Denguefieber 4.0 × 103	0.07 1.9×101	0.33 Dengue fever 3.1 × 103
Influenza	seasonal	max(r2) root article total cases		0.93 Influenza 2.3 × 105		0.77 Influenza 3.6 × 106
Malaria	seasonal	max(r2) root article total cases	0.71 Malaria 3.2 × 105		0.06 6.0 × 102	0.24 Malaria 3.4 × 103
Measles	erratic	max(r2) root article total cases	0.40 Sarampión 9.2 × 103	0.46 Masern 2.5 × 104	0.46 4.6× 102	0.49 Measles 6.5 × 102
Pertussis	erratic	max(r2) root article total cases	0.59 Tos ferina 9.7 × 103	0.83 Keuchhusten 4.8 × 104	0.48 1.2 × 104	0.48 Pertussis 5.3 × 104