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No. He's only 30 years old, and his job doesn't expose him to heavy metals or environmental

Then gradually introduce allergens and see how she responds.

Took a small clue that there's a neurological problem and wasn't afraid to run with it.

Somewhere at a party, in his coffee, up his nose, in his ear, this kid had some.

Prolonged exposure to an allergen with minimal symptoms.

2,500 people at the pool center were exposed.