Prevalence and Pathogenicity of WU and KI Polyomaviruses in Children, the Netherlands
Figure 2. Timelines of WU polyomavirus (WUPyV ) and KI polyomavirus (KIPyV) in 2-week samples, taken regardless of symptoms. Samples were collected during November 2004–April 2005, throughout the Netherlands. Each line represents a child in order of increasing age (patients 1–18, aged <1–7 years); the time between 2 vertical lines accounts for ≈2 weeks. The solid symbols are WUPyV infections; the open symbols are KIPyV infections.