Figure 1From: Frequent detection of Merkel cell polyomavirus DNA in sera of HIV-1-positive patientsMCPyV copy number in serum samples from HIV-1+ and HIV-1- patients. MCPyV copy number per μL of serum is shown. Horizontal and vertical bars indicate the mean and standard deviation, respectively. The mean MCPyV copy number per μL is shown in the right of each bar.Back to article page