This book announces to the reader that allergens are molecules.
If you are allergic to some pollens, you could also be allergic to nuts, fruits, and some vegetables because they may share tho.
If you are allergic to a molecule in a dust mite, for example, you might be allergic to shrimp or even tropical fish food.
You are not allergic to the entire ragweed plant, the entire dust mite, or the whole cow, just one or more types of allergic molecule within each of those organisms.
That\'s right.
This book announces to the reader that allergens are molecules