# Human cytomegalovirus infection and cognitive decline: insights from population and experimental studies

**Authors:** Koon Chu Yaiw, Isidre A. Ferrer, Cecilia Söderberg-Nauclér, Dorota Religa

PMC · DOI: 10.3389/fnagi.2025.1757461 · Frontiers in Aging Neuroscience · 2026-01-20

## TL;DR

This paper reviews how human cytomegalovirus may contribute to cognitive decline and neurodegenerative diseases, emphasizing the need for antiviral strategies and vaccines.

## Contribution

The paper synthesizes population and experimental evidence to highlight HCMV's role in cognitive decline and proposes targeted interventions.

## Key findings

- HCMV is associated with cognitive decline through immunomodulatory effects.
- Epidemiological and experimental data support HCMV's role in neurodegeneration.
- Antiviral strategies and vaccines are recommended to address HCMV-related cognitive issues.

## Abstract

Human cytomegalovirus (HCMV), a ubiquitous DNA betaherpesvirus, is capable of persistent infection and immunomodulation, particularly in immunocompromised and elderly hosts. Emerging evidence links HCMV to neurodegenerative diseases through its multifaceted immunomodulatory effects. This review summarizes key viral architectures and mechanisms, epidemiological trends, and experimental data supporting HCMV's role in cognitive decline. We advocate for targeted antiviral strategies and vaccine development to clarify its contribution to neurodegeneration.

## Full-text entities

- **Diseases:** infection (MESH:D007239), cognitive decline (MESH:D003072), neurodegeneration (MESH:D019636)
- **Species:** Human betaherpesvirus 5 (no rank) [taxon 10359]

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12865707/full.md

## References

44 references — full list in the complete paper: https://tomesphere.com/paper/PMC12865707/full.md

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Source: https://tomesphere.com/paper/PMC12865707