EBV sequence traces

EBV

Epstein-Barr virus infects almost everyone for life and can persist latently in B cells. Viral reads sometimes appear in sequence data. Genome searches for and reports such sequence traces as technical evidence, explicitly without diagnostic intent.

What a signal means, and what not

Viral reads in a sample can stem from latent virus in a few cells or from low contamination. Mere presence does not imply an active infection or disease relevance. Genome therefore shows only the technical signal and leaves interpretation to context.

Why it is still interesting

The link between EBV and multiple sclerosis is an active research field. A large longitudinal study showed a strongly increased MS risk after EBV infection. Sequence traces in one's own data are not a test for this, but they connect to this scientific interest.

What Genome measures. Coverage and number of reads matching the EBV reference genome as a technical signal. No statement about an active infection.

Related topics

Contamination check

Sources

  1. 1Bjornevik et al., 2022 Longitudinal analysis reveals high prevalence of Epstein-Barr virus associated with multiple sclerosis. Science 375:296–301. doi.org/10.1126/science.abj8222
  2. 2Young, Yap & Murray, 2016 Epstein-Barr virus: more than 50 years old and still providing surprises. Nature Reviews Cancer 16:789–802. doi.org/10.1038/nrc.2016.92