PMID- 23999704
OWN - NLM
STAT- MEDLINE
DCOM- 20131219
LR  - 20130903
IS  - 0177-5103 (Print)
IS  - 0177-5103 (Linking)
VI  - 105
IP  - 3
DP  - 2013 Sep 3
TI  - Molecular epidemiology of Flavobacterium psychrophilum from Swiss fish farms.
PG  - 203-10
LID - 10.3354/dao02609 [doi]
AB  - Bacterial cold water disease (BCWD) and rainbow trout fry syndrome (RTFS) caused 
      by Flavobacterium psychrophilum are 2 of the major diseases causing high fish 
      mortality in salmonid fish farms. The molecular epidemiology of F. psychrophilum 
      is still largely unknown. Multilocus sequence typing (MLST) has been previously 
      used for this pathogen and underscored a correlation between clonal complexes and 
      host fish species. Here we used MLST to study the relationships among 112 F. 
      psychrophilum isolates from rainbow trout Oncorhynchus mykiss and brown trout 
      Salmo trutta fario and S. t. lacustris in Swiss fish farms between 1993 and 2012. 
      The isolates belonged to 27 different sequence types (STs). Most of the Swiss 
      outbreaks were associated with strains belonging to clonal complexes CC-ST2 and 
      CC-ST90, found in both rainbow trout and brown trout and represented by several 
      STs. Eight ST singletons could not be connected to any known clonal complex. 
      Already reported from other parts of Europe and North America, CC-ST2 was the 
      most frequent clonal complex observed, and it caused the majority of outbreaks in 
      Switzerland, with CC-ST90 being the second most important type. In the tightly 
      interconnected Swiss fish farms, no association between clonal complex and host 
      fish was detected, but a temporal evolution of the frequency of some STs was 
      observed. The occurrence of sporadic STs suggests high F. psychrophilum diversity 
      and may reflect the presence of different sequence types in the environment.
FAU - Strepparava, Nicole
AU  - Strepparava N
AD  - Cantonal Institute of Microbiology, Via Mirasole 22a, 6500 Bellinzona, 
      Switzerland.
FAU - Nicolas, Pierre
AU  - Nicolas P
FAU - Wahli, Thomas
AU  - Wahli T
FAU - Segner, Helmut
AU  - Segner H
FAU - Petrini, Orlando
AU  - Petrini O
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Germany
TA  - Dis Aquat Organ
JT  - Diseases of aquatic organisms
JID - 8807037
SB  - IM
MH  - Animals
MH  - Disease Outbreaks/veterinary
MH  - Fish Diseases/*microbiology
MH  - Flavobacteriaceae Infections/epidemiology/microbiology/*veterinary
MH  - Flavobacterium/classification/*genetics
MH  - Genetic Variation
MH  - *Molecular Epidemiology
MH  - Phylogeny
MH  - Switzerland/epidemiology
MH  - *Trout
EDAT- 2013/09/04 06:00
MHDA- 2013/12/20 06:00
CRDT- 2013/09/04 06:00
PHST- 2013/09/04 06:00 [entrez]
PHST- 2013/09/04 06:00 [pubmed]
PHST- 2013/12/20 06:00 [medline]
AID - 10.3354/dao02609 [doi]
PST - ppublish
SO  - Dis Aquat Organ. 2013 Sep 3;105(3):203-10. doi: 10.3354/dao02609.