All of the Following are Considered Examples of Type I

Question

All of the following are considered examples of type I hypersensitivity EXCEPT
A)asthma.
B)dust allergies.
C)severe reactions to insect venom.
D)pollen allergies.
E)transplant rejections.

Accepted Answer

Type I hypersensitivity involves immediate, IgE-mediated reactions to allergens. Transplant rejections are not considered a type I hypersensitivity because they involve a different mechanism of immune activation (primarily T-cell mediated). Asthma, dust allergies, severe reactions to insect venom, and pollen allergies are all examples of type I hypersensitivity.