Molecular serotyping of dengue viruses in field-caught Aedes mosquitos by in-house RNA extraction/RT-PCR reagent kits.

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dc.contributor.authorPankhong, Pen_US
dc.contributor.authorSiriprasertkul, Wen_US
dc.contributor.authorPatpoparn, Sen_US
dc.contributor.authorSrisuphanunt, Men_US
dc.contributor.authorRojanapremsuk, Jen_US
dc.contributor.authorSithiprasasna, Ren_US
dc.contributor.authorColeman, R Een_US
dc.contributor.authorNisalak, Aen_US
dc.contributor.authorEndy, T Pen_US
dc.contributor.authorAttatippaholkun, M Ken_US
dc.contributor.authorAttatippaholkun, W Hen_US
dc.date.accessioned2009-05-27T16:42:07Z
dc.date.available2009-05-27T16:42:07Z
dc.date.issued2002-03-16en_US
dc.descriptionThe Southeast Asian Journal of Tropical Medicine and Public Health.en_US
dc.description.abstractWe developed in-house RNA extraction and RT-PCR reagent kits for the molecular serotyping of dengue viruses in field-caught Aedes mosquitos. Mosquitos that showed positive results by ELISA or IFA were selected for the identification of dengue viruses in order to predict the distribution of the four dengue serotypes. Total RNA was extracted from one whole mosquito as well as from one dissected mosquito by our in-house RNA extraction reagents using the modified method of guanidinium thiocyanate denaturation and isopropanol precipitation. The extracted RNA was amplified by our in-house RT-PCR reagents specific for each dengue serotype under optimized conditions. Dengue viral RNA extracted from a single mosquito as well as from the head and thorax of one dissected mosquito could be detected successfully; it could not be found in the abdomen, however. These results indicated that most of the dengue viruses were located in the head and thorax rather than in the abdomen. The results of dengue serotyping showed a pure specific PCR product for each dengue serotype at 490, 230, 320 and 398 bp for DEN-1, DEN-2, DEN-3, and DEN-4 respectively. In addition, the detection sensitivity was very high: an amount of RNA template equivalent to approximately 1/80 of a single mosquito could be detected by agarose gel electrophoresis and ethidium bromide staining. The coupling of RT-PCR-based surveillance of dengue viral infection with disease mapping data (Geograpical Information System, GIS) could serve as an alternative epidemiological means of providing an early warning of dengue fever/dengue hemorrhagic fever epidemics.en_US
dc.description.affiliationDepartment of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand.en_US
dc.identifier.citationPankhong P, Siriprasertkul W, Patpoparn S, Srisuphanunt M, Rojanapremsuk J, Sithiprasasna R, Coleman RE, Nisalak A, Endy TP, Attatippaholkun MK, Attatippaholkun WH. Molecular serotyping of dengue viruses in field-caught Aedes mosquitos by in-house RNA extraction/RT-PCR reagent kits. The Southeast Asian Journal of Tropical Medicine and Public Health. 2002 ; 33 Suppl 3(): 139-44en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/35815
dc.language.isoengen_US
dc.source.urihttps://www.tm.mahidol.ac.th/seameo/publication.htmen_US
dc.subject.meshAedes --virologyen_US
dc.subject.meshAnimalsen_US
dc.subject.meshDengue Virus --geneticsen_US
dc.subject.meshHousingen_US
dc.subject.meshIndicators and Reagentsen_US
dc.subject.meshRNA --geneticsen_US
dc.subject.meshReverse Transcriptase Polymerase Chain Reactionen_US
dc.subject.meshSensitivity and Specificityen_US
dc.titleMolecular serotyping of dengue viruses in field-caught Aedes mosquitos by in-house RNA extraction/RT-PCR reagent kits.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
dc.typeResearch Support, U.S. Gov't, Non-P.H.S.en_US
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