14701
In vivo studies demonstrated that WS - exposed mice inoculated with Streptococcus pneumoniae had a higher bacterial load 24 h post - exposure , and corresponding AM were found to have decreased lymphocyte activation activity .
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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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