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Fig. 2 | Microbiome

Fig. 2

From: The bacterial density of clinical rectal swabs is highly variable, correlates with sequencing contamination, and predicts patient risk of extraintestinal infection

Fig. 2

The bacterial density of rectal swab specimens determines their vulnerability to sequencing contamination. A The bacterial DNA identified in negative sequencing controls (n = 9) was dominated by a single contaminant bacterial taxon (Otu0001: Pseudomonas). B This same Pseudomonas contaminant was present in rectal swab specimens, and variation in its relative abundance was almost entirely explained by the bacterial density of the specimen (Spearman ρ = − 0.95, p < 2.2*10−16)

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