woman in black long sleeve shirt using silver macbook
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Editorial
Published on Free to use under the Unsplash License

This image depicts Centers for Disease Control and Prevention (CDC) intern, Maureen Metcalfe, as she was using one of the agency’s transmission electron microscopes (TEM). The microscope’s screen was displaying a thin section of the variola virus, revealing some of the ultrastructural features displayed by this pathogenic organism, which is the cause of smallpox.