Type of hypersensitivity mediated by a memory T-cell response that have been sensitised to an allergin by a previous contact recruit other leukocytes to the site of allergin upon a later encounter?
A. Type I hypersensitivity
B. Type II hypersensitivity
C. Type III hypersensitivity
D. Type IV hypersensitivity
Answer:D
Type of hypersensitivity mediated by a memory T-cell response that have been sensitised to an allergin by a previous contact recruit other leukocytes to the site of allergin upon a later encounter?
A. Type I hypersensitivity B. Type II hypersensitivity C. Type III hypersensitivity D. Type IV hypersensitivity