Figure 10From: Interactions of highly and low virulent Flavobacterium columnare isolates with gill tissue in carp and rainbow trout Gill bacterial titres (log CFU/g) after challenge with the HV- and LV-isolate in trout. The bacterial titres of fish inoculated with the HV-isolate (blue) remain high during the course of the experiments. The bacterial titres retrieved from fish infected with the LV-isolate (red) show progressively a substantially decreasing trend.Back to article page