Erik Larsson and colleagues used data from The Cancer Genome Atlas to detect the presence of viral nucleic acids in 4,438 tumours from 19 different cancer subtypes and found that 178 tumours contained viral RNA. (natureasia.com)
We have studied a total of 170 samples from chronic fatigue syndrome patients from two UK cohorts and 395 controls for evidence of XMRV infection by looking either for the presence of viral nucleic acids using quantitative PCR (limit of detection < 16 viral copies) or for the presence of serological responses using a virus neutralisation assay. (retrovirology.biomedcentral.com)
Currently, acute infections are predominantly confirmed by detecting viral nucleic acid in blood and urine. (sciencedaily.com)