Document Detail

Isolation of Laribacter hongkongensis, a novel bacterium associated with gastroenteritis, from drinking water reservoirs in Hong Kong.
MedLine Citation:
PMID:  17714383     Owner:  NLM     Status:  MEDLINE    
AIMS: Freshwater fish has been found to be the reservoir of Laribacter hongkongensis, a recently discovered bacterium associated with community-acquired gastroenteritis. However, little is known about the ecology of this bacterium in the aquatic environment. We carried out a surveillance study to investigate the presence of L. hongkongensis in water and freshwater fish from 10 drinking water reservoirs in Hong Kong. METHODS AND RESULTS: Using membrane filtration, L. hongkongensis was isolated from the waters of six reservoirs, with numbers ranging from 1 to 12 CFU l(-1). Higher recovery rates were observed in summer and during days of higher water and ambient temperatures. Of 27 freshwater fish collected from the reservoirs, L. hongkongensis was recovered from the intestines of two fish, a Goldfish and a Nile tilapia. Overall, 35 different pulsed-field gel electrophoresis patterns are found among the 59 isolates recovered from water and the two isolates from freshwater fish. CONCLUSIONS: The present report represents the first to demonstrate the presence of L. hongkongensis in natural water environments. SIGNIFICANCE AND IMPACT OF THE STUDY: Although it is unlikely that treated, drinking water is an important source of L. hongkongensis-associated gastroenteritis, one should be aware of the possibility of other contaminated water as a source of human infection.
S K P Lau; P C Y Woo; R Y Y Fan; S S L Ma; W-T Hui; S-Y Au; L-L Chan; J Y F Chan; A T K Lau; K-Y Leung; T C T Pun; H H L She; C-Y Wong; L L L Wong; K-Y Yuen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied microbiology     Volume:  103     ISSN:  1364-5072     ISO Abbreviation:  J. Appl. Microbiol.     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-08-23     Completed Date:  2007-12-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706280     Medline TA:  J Appl Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  507-15     Citation Subset:  IM    
State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China.
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MeSH Terms
Colony Count, Microbial
Community-Acquired Infections / microbiology
Disease Reservoirs / microbiology
Electrophoresis, Gel, Pulsed-Field / methods
Environmental Microbiology*
Fishes / microbiology*
Food Microbiology
Fresh Water / microbiology*
Gastroenteritis / microbiology
Hong Kong
Neisseriaceae / genetics,  isolation & purification*
RNA, Bacterial / genetics
RNA, Ribosomal, 16S / genetics
Water Microbiology
Water Supply
Reg. No./Substance:
0/RNA, Bacterial; 0/RNA, Ribosomal, 16S

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