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HUVEC migration towards three different live Bb strains and non-viable (formaldehyde-fixed) Bb was assayed following a 20-h transmigration period. The experiment was conducted independently three times with consistent results. Results of one experiment are shown, and values represent the means of two technical replicates ± SEM. (* P < 0.05; ** P < 0.01 relative to untreated controls or the indicated datasets).
