Volume 11, Number 12—December 2005
Synopsis
Francisella tularensis in the United States
Figure 3

Figure 3. Genetic relationships among 72 North American Francisella tularensis holarctica B type 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, squares indicate genetically identical but epidemiologically unlinked isolates, asterisk indicates isolate with an unknown year of isolation, dot indicates a host-linked isolate, and triangles indicate epidemiologically linked isolates.