Merck Manual

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Francisella tularensis bacteria
<i >Francisella tularensis</i>  bacteria
Francisella tularensis bacteria

False-color transmission electron micrograph of a section through Francisella tularensis bacteria. One bacterium (center right) is seen in a longitudinal section; others are seen in cross-section.

Dr. Kari Lounatmaa, Science Photo Library