Which information would indicate more teaching is needed regarding hypersensitivity reactions? Type _______ hypersensitivity reactions involve an antibody response.

The normal host defense mechanisms against infection include (1) normal skin and mucous membranes, (2) phagocytic system, (3) humoral immunity, and (4) cellular immunity. The compromised host is an individual who has one or more defects in these defense mechanisms. (Source: NIH.gov)