Related Experiment Video
Updated: Aug 6, 2026

07:49
Measuring Local Anaphylaxis in Mice
Published on: October 14, 2014
Anaphylaxis in chickens: evidence for in vivo and in vitro histamine release
Abstract
No abstract available in PubMed .
Related Concept Videos
Allergic Reactions
Overview
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions
Delayed-Type Hypersensitivity (DTH), or Type IV hypersensitivity, is a cell-mediated immune response. It occurs when T cells, rather than antibodies, mediate a reaction to specific antigens. It is characterized by a delayed onset (1-2 days) and involves the recruitment of macrophages to the inflammation site.The initiation of a DTH response begins with the sensitization of T cells. During this phase, which lasts at least 1-2 weeks, antigen-specific T cells are activated, clonally expanded, and...

