Table. Scoring of 3 soil characteristics used for Histoplasma site suitability map*.

Assigned value	Land cover class (70% weight)†	Meters from water (20% weight)	Soil pH (10% weight)
9	Cultivated crops, >20% vegetation	0–222	7.2–7.6
8	Pasture or hay, >20% vegetation	222–444	7.0–7.2 or 7.6–7.8
7	Open water, woody wetlands, >20% vegetation; or emergent herbaceous wetlands, >80% vegetation	444–666	6.7–7
6	Deciduous, evergreen or mixed forest, >20% vegetation	666–888	6.4–6.7 or 7.8–8.0
5	Dwarf scrub or shrub/scrub, >20% vegetation; or grassland used for grazing, >80% vegetation	888–1,110	6.0–6.4
4	Developed, open space such as lawns, <20% impervious	1,110–1,332	5.6–6.0 or >8
3	Developed, low and medium intensity, 20% to 79% impervious	1,332–1,555	5.1–5.6
2	Barren land such as rock, sand, or clay, <15% vegetation	1,555–1,777	>4.5 and <5.1
1	Developed, high intensity, >80% impervious	1,777–1,999	<4.5

*A value of 9 represents the most suitable environment for H. capsulatum. The overall weighted score was calculated as follows: an area of evergreen forest, located 1,000 meters from water, with a soil pH of 7.7 would have a suitability score of (6 × 0.7) + (5 × 0.2) + (8 × 0.1) = 6.
†Excluded classes include perennial ice/snow and Alaska-only vegetation types.