Difference Between Immediate Hypersensitivity and Delayed Hypersensitivity
The significant difference between immediate and delayed hypersensitivity indicates that immediate hypersensitivity is a kind of allergic response within 24 hours. In contrast, delayed hypersensitivity is a kind of allergic response within two to three days. Hypersensitivity response is bloated immunologic reactions in reactions to an antigen or allergen. They are categorized as types 1, 2, 3, and 4. Type 1, 2, and 3 hypersensitivity responses are described as immediate since they take place within one day of disclosure of the antigens and allergens. In contrast, the type 4 hypersensitivity response is described as a delayed hypersensitivity response as it takes place after one day.