Title	Catfish Columnaris disease
URI	mms://cvm-vid.vetmed.auburn.edu/gross_patho_rounds/05_26_2009/05_26_2009_case01.wmv
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Subject	integumentary
Description	Columnaris disease is a problem that has had a long and often confusing history. What follows is broadly divided into three main sections. Firstly, ‘classic columnaris’ is briefly outlined (see 1 for further information on columnaris disease; and 2 for further information on the Flavobacteriaceae). Secondly, recent developments, specific to tropical fish are reviewed. Finally, what all this may mean to the discus hobbyist is discussed - along with a ‘real life’ example and potentially useful treatments. Classic Columnaris Columnaris disease is a bacterial disease of freshwater fish. It is the second highest killer of farmed catfish in the USA 3, and it is widely accepted that most species of fish are susceptible to columnaris disease 4. The aetiological agent of columnaris disease is the gram negative rod bacteria, Flexibacter columnare (ex Herbert Spencer Davis 1922) Bernardet and Grimont 1989 (Synonyms: "Bacillus columnaris; Chondrococcus columnaris; Cytophaga columnaris; Flexibacter columnaris. It is often referred to as "fin rot", "cotton wool disease", "cotton mouth disease", or "saddleback disease" 9:48 min
Date	may 26 2009