Yes, that's true. That is where the source came from on the last recall. But we had saminella poisoning, not e.coli. (this recall is saminella bacteria). And 15 years ago, that's what the CDC told us when they questioned us in the hospital. What they said was- how many sinks do you see in those portable toilets in the fields? None, generally the workers don't wash afterwards!
But, unlike e.coli, saminella can be washed off. All Sizzler had to do is wash the fruits and vegitables, and we wouldn't have gotten sick.
And, that's one reason why I don't use cow manure in my yard. The other is due to all the salts from the urine that can be found in the manure. We already have alkaline soil here. I use plant compost.