Purpose: The goals of this study are to compare bulk RNAseq profiles of tissue neutrophils in germ free mice. Methods: Bulk RNAseq of sorted neutrophils from spleen, blood, lung from spf and germ free mice, using Illumina. The sequence reads that passed quality filters were analyzed at the gene level with RSEM. Overall design: Examination of different transcriptomic profiles in neutrophils from germ free mice from 3 different tissues.