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.

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