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Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...

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Related Experiment Video

Updated: Nov 16, 2025

Swab Sampling Method for the Detection of Human Norovirus on Surfaces

Swab Sampling Method for the Detection of Human Norovirus on Surfaces

Published on: February 6, 2017

Crossing the T's on Norovirus

Sanghyun Lee¹, Megan T Baldridge²

¹Division of Biology and Medicine, Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island.

Cellular and Molecular Gastroenterology and Hepatology

|February 22, 2021

Summary

No abstract available in PubMed .

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