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Fig. 2 | BMC Microbiology

Fig. 2

From: Bacterial DNA patterns identified using paired-end Illumina sequencing of 16S rRNA genes from whole blood samples of septic patients in the emergency room and intensive care unit

Fig. 2

PCoA of SB samples that had low sequencing depth indicate they cluster mainly with the Group 2 samples. Principal coordinates analysis, based on weighted UniFrac was done for all blood samples from the ICU patient cohort (n = 116). Of these samples, 54 were used to distinguish DNA profiles into three clusters; Group 1A (orange) and Group 1B (green); Group 2AI (purple), Group 2AII (yellow), Group 2AIII (light blue), Group 2AIV (turquoise), and Group 2B (pink); and Group 3A (grey), and Group 3B (brown). The remaining 62 samples (dark blue) were overlapped with the cluster groups. Circles were added to visualize the area in the PCoA plot that each cluster group isolates occupied. The majority of the low sequence depth samples had bacterial DNA profile profiles that clustered with the Group 2 ICU blood samples and a limited number showing similarity to Group 1 (n = 11) or Group 3 (n = 8) ICU blood samples. There were 12 blood samples of low sequencing depth that did not overlap with any of the ICU blood sample clusters

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