a close up view of a plant cell

Influenza A Virus (SW31) Colorized transmission electron micrograph of influenza A/SW31 (swine strain) virus particles (orange) budding from the surface of a MDCK (kidney) cell. Image captured at the NIAID Integrated Research Facility in Fort Detrick, Maryland. Credit: NIAID https://www.flickr.com/photos/niaid/53286619027/