TABLE 8.

Summary of average differences in decontamination efficacy between B. anthracis Ames and avirulent strains

Test no.	Target RH (%)	Avg difference in efficacya
		G. stearothermophilus	B. anthracis NNR1Δ1	B. anthracis Sterne
1	45	2.26*	—	—
2	45	1.10	—	—
11	45	—	−1.63	0.72
10	45	—	−1.55	1.86
15	45	—	−1.03	1.61
4	45	—	−1.29	—
6	45	—	—	1.74
8	45	—	—	1.54
18	45	—	−1.66	1.28
13	45	—	−1.59	1.31
16	45	—	−1.92	1.43
19	45	—	−2.06	1.63
20	45	—	−1.51	0.98
5	75	—	−2.20*	—
3	75	—	−6.33*	—
14	75	—	−6.16*	−5.35*
7	75	—	—	−3.75*
9	75	—	−1.83	−0.39
17	75	—	−4.96*	−3.67*
12	75	—	−2.54	−0.22

^aThe results are shown as the average difference in efficacy (log reduction). A positive result indicates that the avirulent microorganism was inactivated to a higher degree (less resistant) than B. anthracis Ames. *, a significant difference in efficacy; —, no testing under that condition.