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. 2014 Feb 13;9(2):e88978. doi: 10.1371/journal.pone.0088978

Table 2. Regression model results for outbreaks and norovirus strain types in England, May 2012 to June 2013.

Initial full model Final model
Strain Coefficient p value Coefficient p value
Sydney2012 0.052 0.03 0.037 <0.001
Other GII.4 0.118 0.36 -
New Orleans 0.002 0.94 -
Others −0.065 0.14 -
Winter 0.532 0.35 0.853 0.06