PERSISTENCE OF BRUGIA MALAYI DNA IN VECTOR AND NON-VECTOR MOSQUITOES: IMPLICATIONS FOR XENOMONITORING AND TRANSMISSION MONITORING OF LYMPHATIC FILARIASIS
Identifieur interne : 007294 ( Main/Merge ); précédent : 007293; suivant : 007295PERSISTENCE OF BRUGIA MALAYI DNA IN VECTOR AND NON-VECTOR MOSQUITOES: IMPLICATIONS FOR XENOMONITORING AND TRANSMISSION MONITORING OF LYMPHATIC FILARIASIS
Auteurs : Peter Fischer ; Sara M. Erickson ; Kerstin Fischer ; Jeremy F. Fuchs ; Ramakrishna U. Rao ; Bruce M. Christensen ; Gary J. WeilSource :
- The American journal of tropical medicine and hygiene [ 0002-9637 ] ; 2007.
Descripteurs français
- KwdFr :
- ADN des helminthes (analyse), Aedes (parasitologie), Animaux, Brugia malayi (génétique), Brugia malayi (isolement et purification), Culex (parasitologie), Filariose lymphatique (diagnostic), Filariose lymphatique (transmission), Humains, Réaction de polymérisation en chaîne (), Sensibilité et spécificité.
- MESH :
- analyse : ADN des helminthes.
- diagnostic : Filariose lymphatique.
- génétique : Brugia malayi.
- isolement et purification : Brugia malayi.
- parasitologie : Aedes, Culex.
- Animaux, Filariose lymphatique, Humains, Réaction de polymérisation en chaîne, Sensibilité et spécificité.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : DNA, Helminth.
- diagnosis : Elephantiasis, Filarial.
- genetics : Brugia malayi.
- isolation & purification : Brugia malayi.
- methods : Polymerase Chain Reaction.
- parasitology : Aedes, Culex.
- transmission : Elephantiasis, Filarial.
- Animals, Humans, Sensitivity and Specificity.
Abstract
Xenomonitoring (detection of filarial larvae or their DNA in mosquitoes) is a sensitive marker for assessing the endemicity of filariasis and a useful tool for evaluating elimination programs. To examine the fate of microfilariae (mf) and filarial DNA in vector competent and non-competent mosquito strains, we compared the detection of
Url:
PubMed: 17360875
PubMed Central: 2196403
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PMC:2196403Le document en format XML
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DNA IN VECTOR AND NON-VECTOR MOSQUITOES: IMPLICATIONS FOR XENOMONITORING AND TRANSMISSION MONITORING OF LYMPHATIC FILARIASIS</title>
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DNA IN VECTOR AND NON-VECTOR MOSQUITOES: IMPLICATIONS FOR XENOMONITORING AND TRANSMISSION MONITORING OF LYMPHATIC FILARIASIS</title>
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<term>Brugia malayi (isolation & purification)</term>
<term>Culex (parasitology)</term>
<term>DNA, Helminth (analysis)</term>
<term>Elephantiasis, Filarial (diagnosis)</term>
<term>Elephantiasis, Filarial (transmission)</term>
<term>Humans</term>
<term>Polymerase Chain Reaction (methods)</term>
<term>Sensitivity and Specificity</term>
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<term>Filariose lymphatique (transmission)</term>
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<term>Réaction de polymérisation en chaîne ()</term>
<term>Sensibilité et spécificité</term>
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<front><div type="abstract" xml:lang="en"><p id="P1">Xenomonitoring (detection of filarial larvae or their DNA in mosquitoes) is a sensitive marker for assessing the endemicity of filariasis and a useful tool for evaluating elimination programs. To examine the fate of microfilariae (mf) and filarial DNA in vector competent and non-competent mosquito strains, we compared the detection of <italic>Brugia malayi</italic>
parasites by dissection and by quantitative real-time polymerase chain reaction (PCR) in three different mosquito strains. We conclude that PCR is much more sensitive than dissection for detecting filarial larvae, especially their remnants in mosquitoes. However, parasite DNA can be detected in both vector and non-vector mosquitoes for two weeks or longer after they ingest mf-positive blood. Thus, although xenomonitoring with vector and non-vector mosquito species may be a sensitive method for indirectly detecting filarial parasites in human populations, positive test results for parasite DNA in mosquitoes do not necessarily prove that transmission is ongoing in the study area.</p>
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