Erratum

In the original manuscript [1] there was a mislabelling of the data resulting in Actinobacteria and Bacteroidetes at phylum level being switched. This has been corrected in the amended Figs. 2 and 4 below where before you had high levels of Actinobacteria; these are now corrected to Bacteroidetes. These amended figures show that there was a significant (p < 0.05) decrease in the relative abundance of Actinobacteria, Proteobacteria, Cyanobacteria, Verrucomicrobia, RF3, Tenericutes, and Lentisphaerae in individuals with CF at the phylum level, relative to the non-CF controls (Fig. 2). Notably, there was a significant (p < 0.05) increase in Firmicutes in people with CF relative to the controls (47% vs. 39% respectively). The overall conclusions in the manuscript remain unchanged.

Fig. 2
figure 1

Percentage relative abundance of phyla in those with CF compared to in non-CF controls

Full size image
Fig. 4
figure 2

Percentage relative abundance of phyla in the non-CF controls compared to the individuals with CF, stratified based on number of IV courses in the previous 12 months

Full size image