Document Detail


Adult non-biting midges: possible windborne carriers of Vibrio cholerae non-O1 non-O139.
MedLine Citation:
PMID:  15816934     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Vibrio cholerae is a waterborne bacterium native to the aquatic environment. There are over 200 known serogroups yet only two cause cholera pandemics in humans. Direct contact of human sewage with drinking water, sea-born currents and marine transportation, represent modes of dissemination of the bacteria and thus the disease. The simultaneous cholera outbreaks that occur sometimes in distant localities within continental landmasses are puzzling. Here we present evidence that flying, non-biting midges (Diptera; Chironomidae), collected in the air, carry viable non-O1 non-O139 serogroups of V. cholerae. The association of V. cholerae with chironomid egg masses, which serve as a V. cholerae reservoir, was further confirmed. In simulated field experiments, we recorded the transfer of environmental V. cholerae by adult midges from the aquatic environment into bacteria-free water-pools. In laboratory experiments, flying adult midges that emerged from V. cholerae (O1 or O139) contaminated water transferred the green fluorescent protein (GFP)-tagged pathogenic bacteria from one laboratory flasks to another. Our findings show that aerial transfer by flying chironomids may play a role in the dissemination of V. cholerae in nature.
Authors:
Meir Broza; Hanan Gancz; Malka Halpern; Yechezkel Kashi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental microbiology     Volume:  7     ISSN:  1462-2912     ISO Abbreviation:  Environ. Microbiol.     Publication Date:  2005 Apr 
Date Detail:
Created Date:  2005-04-08     Completed Date:  2005-08-31     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100883692     Medline TA:  Environ Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  576-85     Citation Subset:  IM    
Affiliation:
Department of Biology, Faculty of Science and Science Education, University of Haifa, Oranim, Tivon 36006, Israel. broza@research.haifa.ac.il
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MeSH Terms
Descriptor/Qualifier:
Animals
Chironomidae / microbiology*
Female
Insect Vectors*
Male
Serotyping
Vibrio Infections / transmission*
Vibrio cholerae / isolation & purification*
Vibrio cholerae non-O1 / isolation & purification*
Water Microbiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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