Yanis L. Tolstov, Alycia Knauer, Jian Guo Chen, Thomas W. Kensler, Lawrence A. Kingsley1
, Patrick S. Moore1
, and Yuan Chang1
Figure 4. Two general patterns for Merkel cell polyomavirus (McV) immunoglobulin G levels after seroconversion among participants in the Multicenter AIDS Cohort Study, Pittsburgh, Pennsylvania, USA: a gradual increase over the 25-year period (A, patient 5) or a multiyear decline during 25-year follow up (B, patient 6). Horizontal line represents the 0.2 optical density threshold value for positivity.