Volume 11, Number 12, December 2005

Francisella tularensis in the United States

Jason Farlow,* David M. Wagner,* Meghan Dukerich,* Miles Stanley,* May Chu,† Kristy Kubota,† Jeannine Petersen,† and Paul Keim*
*Northern Arizona University, Flagstaff, Arizona, USA; and †Centers for Disease Control and Prevention, Fort Collins, Colorado, USA

Figure 8. Genetic and spatial data of the A.I and A.II subpopulations of Francisella tularensis subsp. tularensis in the United States. A) Ancestral status of these 2 subpopulations is unclear; either could have founded the other, or a third unknown subpopulation could have been the ancestor. B) Highly restricted bacterial-endemic regions could now be breaking down because of human-mediated dispersal of the pathogen across the country. The small circles indicate the spatial distribution of the A.I and A.II isolates, as shown in Figure 6.

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This page last reviewed November 14, 2005

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
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