Vibrio anguillarum
| Vibrio | |
|---|---|
| Scientific classification | |
| Kingdom: | Bacteria |
| Phylum: | Proteobacteria |
| Class: | Gammaproteobacteria |
| Order: | Vibrionales |
| Family: | Vibrionaceae |
| Genus: |
Vibrio Pacini 1854 |
| Species: | Vibrio anguillarum |
Vibrio anguillarum is a Gram-negative, curved-rod bacterium with one polar flagellum. It is an important pathogen of cultured salmonid fish, and causes the disease known as vibriosis or red pest of eels. The disease has been observed in salmon, bream, eel, mullet, catfish, and tilapia, amongst others. The organism is most prevalent in late summer in salt or brackish water and transmission is mainly horizontal by direct contact. It is widely distributed across the world.
Multiple haemorrhages in the body and skin changes signifying systemic involvement occur. Splenomegaly (enlargement of spleen) may be evident in young fish. Diagnosis relies on culture of V. anguillarum and the use of monoclonal antibodies.
Various antibiotics such as ampicillin, chloramphenicol, nalidixic acid derivatives, nitrofurans, sulfonamides, and trimethoprim can be used to treat the fish. Resistance is emerging, however. A vaccine against V. anguillarum is available.
Frans, I; Michiels, C W (2011). "Vibrio anguillarum as a fish pathogen: virulence factors, diagnosis and prevention". Journal of Fish Diseases. 34 (9): 643–661. doi:10.1111/j.1365-2761.2011.01279.x.
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