This is a photomicrograph of Francisella tularensis bacteria using a methylene blue stain. The bacterium F. tularensis is considered to be a dangerous potential biological weapon because of its extreme infectivity, ease of dissemination, and substantial capacity to cause illness and death.

Tick-Borne Diseases : Tularemia

Content Providers(s): CDC/Dr. P. B. Smith.

Picture & text from CDC/PHIL. For more information see Tularemia Pictures from CDC