7
Pathogen
Disease
Host Range
Geographical distribution
Aerobic gram-positive rods and cocci
Renibacterium salmoninarum
bacterial kidney disease (BKD; Dee disease;
corynebacterial kidney disease)
salmonids
Europe, Japan, North and
South America
Erysipelothrix rhusiopathiae
haemorrhagic septicaemia
eels
Australia
Aerococcaceae representative
Aerococcus viridans
–
tilapia
China
Bacillaceae representatives
Bacillus
spp.
septicaemia; bacillary necrosis
various freshwater fi sh species
including catfi sh (Pangasius
hypophthalmus)
Nigeria, Vietnam
Bacillus cereus
branchio-necrosis
carp (Cyprinus
sp.), striped bass
(Morone saxatilis
)
USA
Bacillus mycoides
ulceration
channel catfi sh (Ictalurus
punctatus)
Poland, USA
Bacillus subtilis
branchio-necrosis
carp
Poland
Corynebacteriaceae representatives
Corynebacterium aquaticum
exophthalmia
striped bass
USA
Coryneform bacteria
‘corynebacteriosis’
salmonids
England
Leuconostocaccaceae representative
Weissella
spp.
weissellosis
rainbow trout
Brazil, China, USA
Weissella ceti
weissellosis
rainbow trout
Brazil, China
Microbacteriaceae representative
Microbacterium paraoxydans
?
Nile tilapia
Mexico
Micrococcaceae representative
Micrococcus luteus
micrococcosis
rainbow trout
England
(continued)
1 Introduction