The human virome in five body habitats. (A) All of the viruses detected in the five body habitats are shown. Each virus is represented by a colored bar and labeled on the y-axis on the right side. The relative height of the bar reflects the percentage of subjects sampled at each body site in whom the virus was detected. In this panel, the bar representing roseoloviruses in the oral samples reflects the maximum bar height, because 98% of the individuals who were sampled in the mouth harbored roseoloviruses. (B) This panel shows papillomaviruses included in the category `Other papillomaviruses’. The largest bar height shown represents the unclassified papillomaviruses found in skin samples from 65% of subjects. The percentages represented in this figure are shown in Additional file 1: Table S3.