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Table 6 Comparison of the Simpson’s index of diversity (SID) between C. jejuni and C. coli

From: Prevalence of Campylobacter spp. in skinless, boneless retail broiler meat from 2005 through 2011 in Alabama, USA

Species Number of unrelated strains Number of types SID
C. coli 78 24 0.924
C. jejuni 175 87 0.982
C. jejuni by year    
2005 15 14 0.989
2006 19 11 0.918
2007 39 22 0.950
2008 23 20 0.988
2009 15 11 0952
2010 31 20 0.959
2011 33 25 0.979