If desired, co stimulatory molecules, which improve immunogen presentation to lymphocytes, such as B7 1 or B7 2, or cytokines such as MIP1α, {HEAD ~ GM CSF}, {TAIL ~ IL} 2, and IL 12, can be included in a composition of the invention 
If desired , co stimulatory molecules , which improve immunogen presentation to lymphocytes , such as B7 1 or B7 2 , or cytokines such as MIP1α , { HEAD ~ GM CSF } , { TAIL ~ IL } 2 , and IL 12 , can be included in a composition of the invention
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