Fig. 2. Biosignatures fail to distinguish symptomatic or asymptomatic cCMV infection.
a Using unsupervised hierarchical clustering, the symptomatic CMV biosignature (2592 transcripts) applied to the entire cohort of infants with CMV (n = 80) and 10 healthy controls, yielded a mixed distribution that did not reliably distinguish symptomatic from asymptomatic cCMV infection. b Following the same strategy, the asymptomatic CMV biosignature (3324 transcripts) was applied to the entire cohort of infants utilizing unsupervised hierarchical clustering and also yielded a mixed distribution that did not reliably distinguish asymptomatic from symptomatic cCMV-infected infants. Transcripts are organized in a heatmap format where each row represents a transcript and each column represents a patient sample. Red color indicates overexpression and blue color underexpression of a transcript compared with the median expression of healthy controls (yellow). Clusters for healthy controls are depicted in blue, for infants with symptomatic cCMV infection in red and asymptomatic cCMV infection in green.