Fig. 3
From: The microbiome of the upper respiratory tract in health and disease
Nasal microbial composition during infancy and different age groups. a Directly after birth, infants’ URTs are colonized by maternal vaginal and skin bacteria. This initial URT microbiome changes during infant development. b The nasal microbiome is gradually reduced and microbial composition changes at different sampling sites. Bacterial genera given in the figure were found at or between the stated time points of life by molecular methods (16S rRNA sequencing with NGS). For references, see the text and Additional file 1