Table 1. Variation within V. vulnificus groups with worldwide distribution isolated between 1979 and 2009 (254 isolates).

	Total strains	Average allele frequency	Median allele frequency	Similarity
Biotype 1	115	0.39	0.33	8.77
Biotype 2	39	0.60	0.82	41.23
Biotype 3	68	0.82	1.00	78.07
Clade A	14	0.90	1.00	89.47
Clade B	18	0.87	1.00	85.26