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Figure 2 | Veterinary Research

Figure 2

From: Columnaris disease in fish: a review with emphasis on bacterium-host interactions

Figure 2

Gill lesions in a shubunkin ( Carassius auratus ) (operculum removed) caused by F. columnare. Yellowish-white areas of degeneration are visible in the ventral part of the first gill arch (arrow). When the F. columnare infection spreads rapidly throughout the gill lamellae, the fish may die in a short period of time without any other apparent lesions. Respiratory distress, caused by damage to the gills, appears to be the cause of death (bar = 1 cm).

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