Total amount of muPyV DNA shed in urine over time.

<p>Urine was collected from infected mice at multiple times post-infection. muPyV genome equivalents per µl of urine as determined by qPCR are shown. Blue circles indicate urine samples selected to determine the barcode repertoire by Illumina NGS. The few selected samples where viral DNA levels were below the limit of quantification (LOQ) are indicated with red circles. Individual mice are identified as “ML”, “MR”, “FL” or “FR”, denoting “M” for male, “F” for female, “L” for left ear punch hole, “R” for right ear punch hole.</p>