File:US-CDC-Logo.png

Logo of the CDC. This copy was cropped and converted to indexed PNG from a version found at this page.

The logo is trademarked; their Logo Guidelines state "CDC's logo is not in the public domain, but is a proprietary trademark—thus it can be protected under Federal Trade Commission (FTC) law." This appears to be a confusion between copyright and trademark law, as, for example, Coca-Cola logo.svg is both a public domain image and is trademarked.