Vertical maintenance of dengue-1 virus in sequential generations of Aedes albopictus.
Vertical transmission of dengue-1 virus was demonstrated over 3 consecutive generations of Aedes albopictus by tracing descendants of individual, vertically infected females. This study is the first to examine efficiency of vertical transmission of a flavivirus by vertically infected mosquitoes. Vertically infected Ae. albopictus females were more efficient vertical transmitters than females infected by inoculation (i.e., horizontally). Three of 4 vertically infected females examined transmitted virus to their offspring, whereas less than or equal to 0.7% of females infected by inoculation were capable of vertical transmission.
Shroyer
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Florida Medical Entomology Laboratory, IFAS-University of Florida, Vero Beach 32962.
D000330:Aedes / Q000382:microbiology*; D000818:Animals; D003716:Dengue Virus / Q000302:isolation & purification*; D005260:Female; D005455:Fluorescent Antibody Technique; D007303:Insect Vectors / Q000382:microbiology*; D008297:Male; D010058:Oviposition; D010375:Pedigree