18571
Our recent evidence using a rodent model of neonatal Escherichiacoli infection has revealed novel insight into the mechanisms underlying cognitive deficits in adulthood , and suggests that the early - life immune history of an individual may be critical to understanding the relative risk of developing later - life mental health disorders in humans .
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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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