Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
This illustration depicts a three-dimensional (3D), computer-generated image of a number of rod-shaped, drug-resistant, Shigella sp. bacteria. The artistic recreation was based upon scanning electron microscopic (SEM) imagery. Note that the exterior of the Shigella sp. bacteria is fimbriated, covered by numerous thin, hair-like projections, imparting a furry appearance.
To receive email updates about this page, enter your email address: