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Further , effective immunizations must induce long - term stimulation of both the humoral and cell - mediated arms of the adaptive system by the production of effector cells for the current infection and memory cells for future infections with the pathogenic agent .
 Anatomy: cell; Anatomy: effector cells; Anatomy: memory cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: cell; Anatomy: effector cells; Anatomy: memory cells