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Figure 4 | Microbiome

Figure 4

From: Intestinal microbiota of preterm infants differ over time and between hospitals

Figure 4

Median relative abundance of phyla Firmicutes and Proteobacteria by quarter in week 2 sample. Line plots indicating shifts in the median relative abundance of selected taxa by quarter for hospital 1 and hospital 2. Red lines indicate hospital 1 and blue lines indicate hospital 2. Quarters 1, 7, and 8 are excluded because fewer than three infants per hospital had samples during those quarters. (A) Median relative abundance of Firmicutes. In hospital 1, Firmicutes again began high in 2010 and then fell in 2011 before rebounding slightly. In hospital 2, relative abundance of Firmicutes peaked in early 2011. (B) Median relative abundance of Proteobacteria. Relative abundance of Proteobacteria appears to be inversely related to relative abundance of Firmicutes. (C) Median relative abundance of Staphylococcaceae, the most commonly detected family of Firmicutes. The abundance of Staphylococcaceae follows the same general trend as Firmicutes. (D) Median relative abundance of Enterobacteriaceae, the most commonly detected family of Proteobacteria. The relative abundance of Enterobacteriaceae follows the same general trend as Proteobacteria.

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