Source:http://linkedlifedata.com/resource/pubmed/id/14765675
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2004-2-9
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pubmed:abstractText |
Australian Aedes aegypti (L.) mosquitoes colonized from the Torres Strait and three mainland localities (Charters Towers, Townsville, and Cairns) were fed on blood suspensions containing dengue virus type 2 (DEN-2) or dengue virus type 4 (DEN-4). Variation was found in oral susceptibility to DEN-2 (59 -99% infection) and DEN-4 (28-79% infection) among Ae. aegypti assayed for virus at 8, 12, 16, or 20 d after ingestion of infected blood. Torres Strait Ae. aegypti were the most susceptible to DEN-2 and were significantly more efficient in transmission to capillary tube at 16 d (76% transmission) than mainland Ae. aegypti populations (20-28% transmission). Torres Strait Ae. aegypti were also the most susceptible to DEN-4, although transmission did not vary significantly from mainland populations at 16 d (12% compared with 0-4%) or 20 d (16% compared with 4-16%). Disseminated infection (i.e., leg infection) with either DEN-2 or DEN-4 was not an accurate predictor of transmission potential. This study demonstrates differences among Australian Ae. aegypti populations in vector competence for DEN-2 and DEN-4. Torres Strait Ae. aegypti were more frequently infected and able to transmit DEN-2 at higher rates than mainland populations. These data indicate that the Torres Strait region is potentially more receptive to dengue transmission than mainland localities, a finding discussed with respect to past outbreaks.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0022-2585
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
40
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
950-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:14765675-Aedes,
pubmed-meshheading:14765675-Animals,
pubmed-meshheading:14765675-Dengue,
pubmed-meshheading:14765675-Dengue Virus,
pubmed-meshheading:14765675-Geography,
pubmed-meshheading:14765675-Humans,
pubmed-meshheading:14765675-Insect Vectors,
pubmed-meshheading:14765675-Pacific Islands,
pubmed-meshheading:14765675-Queensland
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pubmed:year |
2003
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pubmed:articleTitle |
Enhanced vector competence of Aedes aegypti (Diptera: Culicidae) from the Torres Strait compared with mainland Australia for dengue 2 and 4 viruses.
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pubmed:affiliation |
Queensland Institute of Medical Research, University of Queensland Australian Centre for International and Tropical Health and Nutrition, Post Office Royal Brisbane Hospital, Herston Qld 4029, Australia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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