Figure 2. . . Genetic relatedness of O1 Vibrio cholerae isolates from an outbreak of cholera, Kenya, January 2009–May 2010. The 3 largest clonal complexes are shown; smaller clonal complexes consisted of 2 or 3 genotypes. A) Clonal complex 1 was observed in each geographic/climatic region. B) Clonal complex 2 was detected in the Rift Valley (western part of the arid and semi-arid region) and in the coastal, lower eastern, and highland (primarily in informal settlements around Nairobi, represented by asterisks) regions. C) Clonal complex 3 was detected in the coastal, lake, and highland regions and in the Rift Valley (arid and semi-arid region).Genetic relatedness was determined by using eBURSTv3 (http://eburst.mlst.net/). Each genotype is represented by a node in the diagram; each connecting line represents an allelic change at a single locus.