I'm so sorry, Jules. I think I'd lime the heck out of all the grounds with that burning hydrated lime for sure, then till it up, then lime it again, but how long to let it sit, I'm not really sure.
I think I'd burn the bedding in a fire pit, personally.
I agree with Ivan, eloquent. indeed.
Here is a good article on the vaccinations for ILT, if anyone is interested: http://www.thepoultrysite.com/articles/1430/new-treatments-offer-help-against-surging-ilt-in-poultry
The problem with vaccinations is that you must be VERY careful as certain...