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|Effective against bacteria, viruses, and toxins
|Common in endocrine glan secretions, such as breast milk, tears, nasal fluid, and gastric juices. IgA passes from mother to infant.
|Develops in the blood plasma in response to certain antigens within the body or from foreign sources. First to be produced with an infection.
|Is important for B cell activation, which helps immunity by transforming itself into a plasma cell in the presents of a specific antigen.
|Appears in glandular secretions and is associated with allergic reactions.
|Helper Cells (CD4)
|Stimulate immune responce
|Cytotoxic Cells (CD8)
|Help in the destruction of infected cells
|T cells (mainly CD8 and some CD4) that help supress B cells and other immune cells