Aedes aegypti , a dengue virus vector mosquito, at the margins: Sensitivity of a coupled natural and human system to climate change
Monday, November 4, 2013
: 10:30 a.m. - 11:00 a.m.
Dengue viruses circulate between mosquito vectors and humans, causing an estimated 300-million dengue infections annually. In the last decade, the Americas have experienced a dramatic increase in severe disease cases (dengue hemorrhagic fever), with devastating public health consequences. Of particular concern is the potential for the expansion of intense dengue virus transmission into cooler, high altitude cities that are presently outside of transmission zones such as Mexico City, but may be at risk under scenarios of climate change. To address this problem, we are employing a coupled natural and human systems approach to explore the ecology of Aedes (Ae.) aegypti, the mosquito vector of dengue viruses, in Mexico. A field study is being conducted along a transect from Veracruz City to Puebla City, ranging from relatively warm and wet low-elevation coastal environments with well established vector mosquito populations and intense dengue virus transmission, to comparatively cool and dry high-elevation mountainous areas which currently are free of the mosquito vector and local virus transmission. Along the transect we are measuring how climatic, socio-economic and infrastructure factors are coupled with Ae. aegypti abundance. These data are being synthesized into spatially and temporally predictive models to examine if, how, and why the range of the dengue vector Ae. aegypti may change in the future. Observational and modeling results from two field seasons will be presented, indicating strong linkages between climate and mosquito presence and abundance.
Discuss experiences in International epidemiology projects
Presenting author's disclosure statement:
Qualified on the content I am responsible for because: Dr. Mary Hayden (NCAR) is a behavioral scientist with over 13 years of experience working on weather, climate and health related linkages. She received her PhD in Health and Behavioral Sciences in 2003 from the University of Colorado and is adjoint faculty at the University of Colorado School of Public Health and a Guest Researcher with the U.S. CDC. Her primary research emphasis is on the human behavioral component of climate-sensitive health and disease issues.
Any relevant financial relationships? No
I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines,
and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed
in my presentation.