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Table 6 Mean genetic distances between and within groups using the isolates from Florida in 2005 and New York from 2001 to 2003 as separate subgroups.

From: Diversification of West Nile virus in a subtropical region

  Mean genetic distance* ± SE
  Envelope NS3/4A
Type of comparison NT AA NT AA
Within New York (01–03) 0.0024 ± 0.0007 0.0031 ± 0.0015 0.0035 ± 0.0007 0.0011 ± 0.0006
Within Florida 2005 0.0086 ± 0.0015 0.0101 ± 0.0027 0.0064 ± 0.0012 0.0044 ± 0.0016
Within all other regions and times 0.0035 ± 0.0007 0.0033 ± 0.0014 0.0041 ± 0.0007 0.0017 ± 0.0007
Between New York (01–03) and Florida 2005 0.0062 ± 0.0010 0.0073 ± 0.0019 0.0059 ± 0.0009 0.0029 ± 0.0009
Between New York (01–03) and all other regions and times 0.0030 ± 0.0005 0.0032 ± 0.0013 0.0039 ± 0.0006 0.0014 ± 0.0005
Between Florida 2005 and all other regions and times 0.0067 ± 0.0011 0.0072 ± 0.0018 0.0062 ± 0.0010 0.0032 ± 0.0009
  1. * = NT, nucleotide; AA, amino acid.