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Publications (1)2.33 Total impact

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    Youne Kow Chung · Fung Yin Pang
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    ABSTRACT: We developed a single-step reverse transcription-polymerase chain reaction (RT-PCR) followed by a semi-nested PCR using an upstream consensus primer and four type-specific primers within the non-structural protein gene (NS3) of dengue viruses to type dengue viruses in field populations of female Aedes mosquitoes. This yielded diagnostic fragments of 169, 362, 265 and 426 base pairs for dengue virus types 1, 2, 3 and 4, respectively. From 1997 to 2000, 54 (6.9%) of 781 Aedes aegypti and 67 (2.9%) of 2256 Aedes albopictus screened were positive for dengue viruses, with a declining trend. The most common dengue virus type detected in the Aedes mosquitoes was dengue-1. Details on the change of one serotype to another in the mosquito population over three consecutive years are discussed.
    Preview · Article · May 2002 · Tropical Medicine & International Health