Impact of stressful conditions on the survival of Culex pipiens exposed to Rift Valley fever virus
Dohm, D.J.; Romoser, W.S.; Turell, M.J.; Linthicum, K.J.
Journal of the American Mosquito Control Association 7(4): 621-623
1991
ISSN/ISBN: 8756-971X PMID: 1787408 Document Number: 371834
Several groups of Rift Valley fever (RVF) virus-exposed and unexposed C. pipiens were allowed differential access to a carbohydrate food source, and their survival was monitored. When stressed by deprivation of a carbohydrate source, mean survival times of RVF virus-exposed mosquitoes were consistently higher than those of unexposed mosquitoes in each of the carbohydrate-deficient experiments. These differences were statistically significant when mosquitoes were provided 5% sucrose for 24 h. Mosquitoes that were provided access to a carbohydrate source for 24 h after a bloodmeal and then were denied access survived significantly longer than did those mosquitoes denied access completely, regardless of their exposure to RVF virus. When not stressed, RVF virus-exposed individuals had slightly higher daily survival rates than did unexposed individuals. Several groups of Rift Valley fever (RVF) virus-exposed and unexposed Culex pipiens were allowed differential access to a carbohydrate food source and their survival monitored. When stressed by deprivation of a carbohydrate source, mean survival times of RVF virus-exposed mosquitoes were consistently higher than those of unexposed mosquitoes in each of the carbohydrate-deficient experiments. These differences were statistically significant when mosquitoes were provided 5% sucrose for 24 h. Mosquitoes that were provided access to a carbohydrate source for 24 h after a bloodmeal and then were denied access survived significantly longer than did those mosquitoes denied access, regardless of their exposure to RVF virus. When not stressed, RVF virus-exposed individuals had slightly higher daily survival rates than did unexposed individuals.AS.