Impact of daily temperature fluctuations on dengue virus transmission by Aedes aegypti
Institut Pasteur · Department of Virology · +9 more institutions
Abstract
Most studies on the ability of insect populations to transmit pathogens consider only constant temperatures and do not account for realistic daily temperature fluctuations that can impact vector-pathogen interactions. Here, we show that diurnal temperature range (DTR) affects two important parameters underlying dengue virus (DENV) transmission by Aedes aegypti. In two independent experiments using different DENV serotypes, mosquitoes were less susceptible to virus infection and died faster under larger DTR around the same mean temperature. Large DTR (20 °C) decreased the probability of midgut infection, but not duration of the virus extrinsic incubation period (EIP), compared with moderate DTR (10 °C) or…
Citation impact
- FWCI
- 36.52
- Percentile
- 100%
- References
- 44
Authors
7- LLLouis LambrechtsCorresponding
Institut Pasteur, Department of Virology
- KPKrijn P. Paaijmans
Pennsylvania State University, Center for Disease Dynamics, Economics & Policy
- TFThanyalak Fansiri
Institut Pasteur, Armed Forces Research Institute of Medical Science, Department of Virology
- LBLauren B. Carrington
University of California, Davis
- LDLaura D. Kramer
New York State Department of Health, Wadsworth Center, University at Albany, State University of New York
Topics & keywords
- Dengue virus
- Aedes aegypti
- Dengue fever
- Biology
- Transmission (telecommunications)
- Vector (molecular biology)
- Diurnal temperature variation
- Virus