Volume 20, Number 5—May 2014
Research
Molecular Investigation of Tularemia Outbreaks, Spain, 1997–2008
Figure 2

Figure 2. Minimum-spanning tree based on multilocus variable number of tandem repeat analysis (MLVA) genotypes, showing genetic relationships among 98 Francisella tularensis subspholarctica isolates from Spain (white circles), 10 Ftularensis subspholarctica reference isolates from the Czech Republic (gray circles), and reference strain Ftularensis subsptularensis Schu (CAPM 5600)Each node represents a unique MLVA type, and size is proportional to the number of isolates with that genotype (values in parentheses)Numbers on lines between nodes indicate number of typing markers that were different between genotypesA 1-marker difference is indicated by a thick line.