Volume 11, Number 12—December 2005
Synopsis
Francisella tularensis in the United States
Figure 1

Figure 1. Genetic relationships among 48 North American Francisella tularensis subsp. tularensis A.I. subpopulation isolates based upon allelic differences at 24 variable number tandem repeat (VNTR) markers. County, state, and year of isolation are specified to the right of each branch or clade. G indicates number of distinct VNTR marker genotypes, dots indicate host-linked isolates, boxed designation indicates prominent F. tularensis subsp. tularensis laboratory strain SCHU S4, and asterisks indicate isolates with an unknown year of isolation.
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