TABLE 1.

Survival of E. coli O157:H7 in manure-amended autoclaved or unautoclaved soil held at different temperatures

Samples	Days of survival at storage temp (°C) of:
	5	15	21
Manure:autoclaved soil
1:10	77a	138	103
1:25	63	>226	231
1:50	70	>226	231
1:100	35	>226	193
Manure:unautoclaved soil
1:10	42	34	103
1:25	42	152	193
1:50	56	109	174
1:100	49	109	131

^aMaximum day at which E. coli O157:H7 was detected by either direct plating or enrichment culture methods.