TABLE 7.

Nonkinetic studies on survival of Bacillus anthracis (virulent strains) in the environment

Medium	Exptl condition	Survival	Reference
Aerosol	Silk string	4 yr	17
	Silk string	8-10 yr	17
	Silk string	12 yr	17
	Silk string	17 yr	17
	Silk string	71 yr	64
	Open air	No death overnight	61
Water	Pond water	2 yr	64
	Milk	10 yr	64
	Sewage	16 mo	79
	Distilled water	20 mo	79
	Seawater	20 mo	79
	Pond water	18 yr	63
Fomite	Paper filter	35 yr	67
	Paper filter	41 yr	67
	Dry spores from desiccated culture	17 yr	17
	Dry spores from desiccated culture	18 yr	84
	Dry spores, canvas	22 yr for no growth	37
	Dry spores, canvas	3 mo 50% decrease	37
Soil	Moist soil	33 mo	79
	Dry soil	33 mo	79
	Soil, cadaver	15 yr	37
	Gravel, cadaver	20 yr	37
	Soil, cadaver	12 yr	37
	Sealed soil	60-68 yr	56
	Gruinard Island soil	40 yr	59
	Sealed soil	60 yr	92