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Three days post infection ( dpi ) , Delta ( 9 ) - THC broadly decreased expression levels of mRNA induced by the innate immune response to influenza , suppressed the percentage of interferon - gamma ( IFN - gamma ) - producing CD4 ( + ) and interleukin - 17 - producing NK1 . 1 ( + ) cells , and reduced the influx of antigen - presenting cells ( APC ) , including inflammatory myeloid cells and monocytes / macrophages , into the lung in a CB ( 1 ) - and / or CB ( 2 ) - dependent manner .
 Chemical: Delta ( 9 ) - THC
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
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 Chemical: Delta ( 9 ) - THC