18573
I describe the important role of the immune system , notably microglia , during brain development , and discuss some of the many ways in which immune activation during early brain development can affect the later - life outcomes of neural function , immune function , and cognition .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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