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Table 2 Proportion of isolates of F. columnare from each region (south and north) and year of isolation within the MLSA clusters (%)

From: A multilocus sequence analysis scheme for characterization of Flavobacterium columnare isolates

MLSA clusters No. of isolates North South P value 2003 2005 2006 2007 2008 2009 2010 2011 2012 P value
C 34 58.8 41.2 0.182 0 0 23.5 14.7 8.8 20.6 17.6 2.9 11.8 0.88
E 20 0 100 - 5.0 0 0 10.0 15.0 0 25.0 5.0 40.0 0.003*
G 14 57.1 42.9 0.593 0 14.3 7.1 35.7 14.3 7.1 21.4 0 0 0.145
H 3 33.3 66.7 0.564 66.7 0 0 0 0 0 0 0 33.3 -a
A 12 50 50 1.00 9.1 0 18.2 27.3 0 27.3 18.2 0 0 0.118
  1. Observations for regional sources were compared by nonparametric chi-square test (* = P < 0.05). Observations for year of isolation were tested with logistic regression where year was fitted as a continuous covariate
  2. aDue to the small number of cluster H isolates in our dataset (n = 3), we did not include cluster H in logistic regression