Fig. 5

Logarithm of ratio-transformed data (log-ratio) biplots in relation to participant age at specimen collection, 16S rRNA gene copies/μl and read counts following bioinformatic processing. Data points are coloured according to a participant age at specimen collection (in days), b 16S rRNA gene copies/μl and c read counts available for downstream analyses. Technical repeats (n = 209) are represented using filled circles. No template controls (Primestore, n = 35) are represented using filled triangles