| Name | Description |
| Pasteurellosis | A variety of marine fish in several parts of the world have been frequently infected with a highly virulent bacterium originally called Pasteurella piscicida (thus the name Pasteurellosis). The disease was renamed in 1995 and is now officially called Photobacterium damsela subspecies piscicida. |
| Vibriosis | A bacterial disease of salt-water and migratory fish, and the severity of vibriosis has increased proportionately with the development and expansion of fish farming world-wide. It has a global distribution with epizootics on all continents and a wide range of fish. |
| Winter Disease Syndrome | Over the last few years a disease referred to as Winter Disease Syndrome (WDS) has been affecting (mainly) sea bream in the Mediterranean area. The diseased fish show typical behaviour for this disease, i.e., they swim belly-up and, as the name indicates, they are affected mainly during winter when water temperatures are low. |
