I don't know much about children's health, but from your comments I wouldn't think that raw is at the root of the issue here and would be looking at other possibilities.
You sound as if you are doing everything right in regards to sanitation with the raw food, so I don't see any alarm bells there
Please keep us posted when you get results back!
My babies: Sassy - Maltese X (9), Furby - Shihtzu X (7), Brynn - Boxer (3), Diesel - Boxer (1)
"Many of the Earth's habitats, animals, plants, insects, and even micro-organisms that we know as rare may not be known at all by future generations. We have the capability, and the responsibility. We must act before it is too late." - Dalai Lama