A)Histamine.
B)Prostaglandin.
C)Kinin.
D)Complement.
E)Phagosome.

A)More antibodies are produced in a secondary response than in a primary response.
B)Antibodies are produced faster in a primary response than in a secondary response.
C)Antibodies persist for a longer time following secondary exposure to an antigen.
D)More memory cells are stimulated in a secondary response.
E)Mainly IgG is produced in a secondary response.

A)released from virus-infected cells to protect other cells from infection.
B)released from activated T-lymphocytes in a cell-mediated immune response to infection.
C)not virus specific.
D)produced by a variety of different cell types.
E)all of the above.