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The Sindbis virus (Alphavirus; Togaviridae) strain MRE16 efficiently infects Aedes aegypti mosquitoes that ingest a blood meal containing 8 to 9 log(10) PFU of virus/ml. However, a small-plaque variant of this virus, MRE16sp, poorly infects mosquitoes after oral infection with an equivalent titer. To determine the genetic differences between MRE16 and(More)
Alphavirus transducing systems (ATSs) are alphavirus-based tools for expressing genes in insects. Here we describe an ATS (5'dsMRE16ic) based entirely on Sindbis MRE16 virus. GFP expression was used to characterize alimentary tract infections and dissemination in three Culicine and two Lepidopteran species. Following per os infection, 5'dsMRE16ic-EGFP(More)
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