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The research aims to explore the interactions between viral DNA and genetic factors in human samples.

April 10, 2026Open Access

Hidden human–virus interactions uncovered in DNA in blood and saliva

Key Points

The research aims to explore the interactions between viral DNA and genetic factors in human samples.
Measured viral DNA abundance in sequenced blood and saliva samples from biobanks.
Analyzed correlations between viral DNA, age, sex, and genetic variants.
Investigated the link between latent Epstein-Barr virus and Hodgkin's lymphoma.
Strong correlations found between viral DNA abundance and age, sex, and genetic variants.
High levels of latent Epstein-Barr virus identified as a causal risk factor for Hodgkin's lymphoma.
Viral DNA levels influenced by individual behavior and genetics.

Abstract

The abundance of viral DNA was measured in DNA sequenced from blood and saliva samples in biobanks, revealing strong correlations with age, sex and dozens of genetic variants. Genetic analyses indicate that a high abundance of latent Epstein–Barr virus is a causal risk factor for a blood cancer called Hodgkin’s lymphoma. The amount of DNA of different viruses is shaped by a person’s age, sex, behaviour and genetics.

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A Wed, study studied this question.

www.synapsesocial.com/papers/69d895d86c1944d70ce06fbf — DOI: https://doi.org/10.1038/d41586-026-01032-7

Hidden human–virus interactions uncovered in DNA in blood and saliva

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