2 doctors weighed in:

What is a type 4 hypersensitivity reaction?

2 doctors weighed in
Dr. Lee Perry
Internal Medicine - Allergy & Immunology
1 doctor agrees

In brief: Delayed reaction

Type 4 reactions are delayed reactions involving t cells (i.
e. Poison ivy).

In brief: Delayed reaction

Type 4 reactions are delayed reactions involving t cells (i.
e. Poison ivy).
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