Mouse serum antibody titers expressed in log10 were analyzed using SAS for Windows, version 8 (SAS Institute, Cary, NC), with Student’s t-test for the significance of differences. Mouse serum antibody adherence inhibition activities were examined with non-parametric Mood’s Median Test at 95% confidence. Numeric results were presented as means and standard deviations. Calculated p values of less than 0.05 were considered significant when treatments were compared using two-tailed distribution and two-sample unequal variance.