TABLE 2.

In vitro susceptibilities of M. furfur and M. sympodialis as determined by the broth dilution assay

Organism (no. of isolates tested)	Agent	MICa		MFCa
		Range	90%	Range	90%
M. furfur (10)	Tea tree oil	0.03–0.12	0.12	0.5–1.0	1.0
	Ketoconazole	0.06–0.25	0.25	0.06–0.5	0.25
	Miconazole	8–128	128	16–>256	>256
	Econazole	8–128	64	16–>256	>256
M. sympodialis (10)	Tea tree oil	0.016–0.12	0.06	0.06–0.12	0.12
	Ketoconazole	0.008–0.03	0.016	0.008–0.06	0.03
	Miconazole	0.25–4	1	0.5–>8	>8
	Econazole	0.25–4	1	1–32	16

^aPercent volume per volume for tea tree oil and micrograms per milliliter for ketoconazole, miconazole, and econazole. 90%, MIC₉₀ or MFC₉₀.