| Autor: |
Guidez A; Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 97306 Cayenne, France., Fontaine A; Unité des Virus Émergents, Aix-Marseille University, Università di Corsica, IRD 190, Inserm 1207, IRBA, 13005 Marseille, France.; Unité de Virologie, Institut de Recherche Biomédicale des Armées (IRBA), 13005 Marseille, France., Cannet A; CNEV, IRD, 34000 Montpellier, France., Dusfour I; Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 97306 Cayenne, France., Girod R; Unité d'Entomologie Médicale, Institut Pasteur de la Guyane, 97306 Cayenne, France., Briolant S; Unité Parasitologie et Entomologie, Département de Microbiologie et Maladies Infectieuses, Institut de Recherche Biomédicale des Armées, 13005 Marseille, France.; Aix Marseille Université, SSA, AP-HM, UMR Risques Infectieux Tropicaux et Microorganismes Emergents (RITMES), 13005 Marseille, France.; IHU Méditerranée Infection, 13005 Marseille, France. |
| Abstrakt: |
Programs to control viruses transmitted by mosquitoes requires the implementation of surveillance tools. Over the past decade, Flinders Technology Associates (FTA ® ) cards, which preserve nucleic acids, have emerged as an innovating surveillance system for collecting arboviruses expectorated during mosquito sugar feeding. In this study, we evaluate the survival rates of two strain of Aedes aegypti (New Orleans (NO) and Cayenne (CAY)) in the laboratory after exposing to either honey-impregnated FTA ® cards or untreated filter paper (UFP) card. Experimental exposure of mosquitoes to FTA ® cards during sugar feeding significantly negatively impacted their survival, as compared to untreated filter paper. The median survival time was 2 days (95% confidence interval [CI] 1 day, 3 days) for mosquitoes exposed to FTA cards from strain NO and 3 days (95% CI 2 days, 3 days) for mosquitoes exposed to FTA cards from strain CAY. Mosquitoes exposed to UFP did not survive until the end of the experiment (4 days for strain NO and 7 days for strain CAY). Although this finding does not preclude the use of FTA ® cards in surveillance, it is crucial to consider and incorporate this factor into study designs. |
