This colorized negative stained transmission electron micrograph (TEM) depicted some of the ultrastructural morphology of the A/CA/4/09 swine flu virus. See PHIL 11212 for a black and white version of this image.
Photo Credit: C. S. Goldsmith and A. Balish, CDC
2009-04
<a rel="nofollow" class="external free" href="https://www.cdc.gov/media/subtopic/library/diseases.htm">https://www.cdc.gov/media/subtopic/library/diseases.htm</a> (<a rel="nofollow" class="external text" href="https://phil.cdc.gov/PHIL_Images/11214/11214.tif">Original .tif</a>)