Ratlung. Worse than we thought.

[rainyjim]

UV light will definitely kill the parasites. What I think you are trying to point out (and I agree with) is that more study is needed to determine just what amount of exposure is necessary to kill the organisms.

I would also posit that while this technique might be optimal for sterilizing water, it is not very helpful for many foods where the light would not be able to penetrate equally - like down into the folds between lettuce leaves for example.