TABLE 1.

SPLEEN log₁₀ COLONY-FORMING UNIT COUNTS AND PROPORTION OF MICE WITH POSITIVE SPLEEN CULTURES 3 MO AFTER TREATMENT WITH 3-MO, ONCE-WEEKLY RIFAPENTINE-CONTAINING REGIMENS

Regimen	Spleen log CFU Count at End of Treatment*	Proportion with Culture-positive Spleens at Relapse
Control regimens
6-mo INH	0.85 ± 0.59	10/10
9-mo INH	ND	9/10
Experimental regimens
3-mo INH plus RPT	0.76 ± 0.27	6/10
3-mo MXF plus RPT	1.32 ± 0.54	9/10

Definition of abbreviations: CFU = colony-forming unit; INH = isoniazid; MXF = moxifloxacin; ND = not determined; RPT = rifapentine.

^*Spleen log colony–forming unit count was 4.55 ± 0.36 at the initiation of treatment.