Author: Anonymous

Which hypersensitivity reaction is primarily mediated by immune-complex deposition?

A patient has defective TFH cells in mucosal tissue. Which barrier function is most likely impaired?

Secreted dimeric IgA is important at barrier surfaces because it:

A researcher blocks CCR7 on naïve T cells before injecting them into mice. Which process would be most impaired?

A patient receives a drug that blocks calcineurin. Which transcription factor is most directly prevented from entering the nucleus?

A patient inhales a pathogen into the lower airway. Which resident macrophage population monitors this region?

A larger antigen enters a lymph node. Which cell type captures and hands it off to follicular B cells?

A developing B cell has completed heavy-chain rearrangement and expresses a pre-BCR with surrogate light chain. Which checkpoint is being assessed?

A patient with helminth infection has eosinophilia and high IgE. Which helper T-cell subset is most involved?

A patient has recurrent infections after impaired formation of memory B cells. Which immunologic process is most directly responsible for enhanced secondary antibody responses?