AMI IMAGES / SCIENCE PHOTO LIBRARY AMI IMAGES / SCIENCE PHOTO LIBRARY
Varicella zoster virus (VZV) particle, coloured transmission electron micrograph (TEM). VZV is a member of the Herpes virus family and causes human chickenpox and shingles. Each particle (virion) consists of a deoxyribonucleic acid (DNA) core (brown) surrounded by an icosahedral capsid (yellow), which is itself surrounded by an glycoprotein envelope (brown ring).
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