Figure 1

Box-plot graphs representing the maximum and minimum values, lower and upper quartiles and medians of invasion rate (IR) replicates from experiments performed in triplicate determined in vitro for each N. caninum isolate. IRs at 2 h pi (A). IRs at 4 h pi (B). IRs at 6 h pi (C). Error bars indicate the SD. (**) marks the significantly higher IRs compared with all of those IRs that were significantly lower (*) according to the Kruskal-Wallis test and the Dunn's multiple-comparison test.