delayed hypersensitivity reaction造句

OFG may represent a delayed hypersensitivity reaction, but the causative antigen ( s ) is not identified or varies form one individual to the next.
It improved what's known as the delayed hypersensitivity reaction, which causes a circular reddening on the arm in response to a number of bacterial and fungal antigens applied to the skin.
It's difficult to find delayed hypersensitivity reaction in a sentence. 用delayed hypersensitivity reaction造句挺难的