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Co-learning during the co-creation of a dengue early warning system for the health sector in Barbados

RYAN, LIPPI – Co-learning during the co-creation of a dengue early warning system for the health sector in Barbados Anna M Stewart-Ibarra, Leslie Rollock, Sabu Best, Tia Brown, Avriel R Diaz, Willy Dunbar, Catherine A Lippi, Roche Mahon, Sadie J Ryan, Adrian Trotman, Cedric J Van Meerbeeck, Rachel Lowe Article first published online: 6 Jan 2022 […]

Building resilience to mosquito-borne diseases in the Caribbean

RYAN – Building resilience to mosquito-borne diseases in the Caribbean Rachel Lowe, Sadie J. Ryan, Roché Mahon, Cedric J. Van Meerbeeck, Adrian R. Trotman, Laura-Lee G. Boodram, Mercy J. Borbor-Cordova, Anna M. Stewart-Ibarra Article first published online: 24 NOV 2020 PLOS Biology DOI: 10.1371/journal.pbio.3000791 ABSTRACT: Small island developing states in the Caribbean are among the […]

Flying Under the Radar

GAINESVILLE, FL – University of Florida Associate Professor of Medical Geography Dr. Sadie Ryan (Emerging Pathogens Institute, Quantitative Disease Ecology & Conservation Lab) spoke with WUFT News about vector-borne disease in the time of coronavirus in Flying Under the Radar. “It’s not like mosquitoes went on hold because of COVID,” she said. “The message needs to stay alive.” […]

Spatial variation in the frequency of knockdown resistance genotypes in Florida Aedes aegypti populations

MUNDIS, RYAN – Spatial variation in the frequency of knockdown resistance genotypes in Florida Aedes aegypti populations Stephanie J. Mundis, Alden S. Estep, Christy M. Waits, & Sadie J. Ryan Article first published online: 11 MAY 2020 Parasites & Vectors DOI: 10.1186/s13071-020-04112-3 ABSTRACT: Background The development of insecticide resistance in disease-vectoring mosquito species can lead […]

Spatiotemporal Tools for Emerging and Endemic Disease Hotspots in Small Areas: An Analysis of Dengue and Chikungunya in Barbados, 2013–2016

LIPPI, RYAN – Spatiotemporal Tools for Emerging and Endemic Disease Hotspots in Small Areas: An Analysis of Dengue and Chikungunya in Barbados, 2013–2016 Catherine A. Lippi, Anna M. Stewart-Ibarra, Moory Romero, Avery Q. J. Hinds, Rachel Lowe, Roché Mahon, Cedric J. Van Meerbeeck, Leslie Rollock, Marquita Gittens-St. Hilaire, Adrian R. Trotman, Dale Holligan, Shane Kirton, […]

Machine Learning Predictions of Dengue Patients Outcomes Yield Promising Results

GAINESVILLE, FL – Helping patients with dengue can be challenging – especially in countries with multiple diseases spread by mosquitoes. Dengue, chikungunya, and Zika are viruses spread by the same type of mosquito; all three viruses are present in Ecuador and many other countries in Latin America and the Caribbean. Patients infected with one of […]

Novel Network Approach to Mosquito Control Distribution Yields Insights for a City in Southern Ecuador

GAINESVILLE, FL – Fighting mosquito-borne disease can be costly – in both health and financial resources. While mosquito control is an effective way to combat the spread of diseases like dengue fever, the cost of spraying every house in a city quickly adds up. These costs limit public health vector control programs, which often operate […]

Severity Index for Suspected Arbovirus (SISA): Machine learning for accurate prediction of hospitalization in subjects suspected of arboviral infection

SIPPY, RYAN – Severity Index for Suspected Arbovirus (SISA): Machine learning for accurate prediction of hospitalization in subjects suspected of arboviral infection Rachel Sippy, Daniel F. Farrell, Daniel A. Lichtenstein, Ryan Nightingale, Megan A. Harris, Joseph Toth, Paris Hantztidiamantis, Nicholas Usher, Cinthya Cueva Aponte, Julio Barzallo Aguilar, Anthony Puthumana, Christina D. Lupone, Timothy Endy, Sadie […]

A network analysis framework to improve the delivery of mosquito abatement services in Machala, Ecuador

BLACKBURN, LIPPI, MAO, RYAN – A network analysis framework to improve the delivery of mosquito abatement services in Machala, Ecuador Catherine A. Lippi, Liang Mao, Anna M. Stewart-Ibarra, Naveed Heydari, Efraín Beltrán Ayala, Nathan D. Burkett-Cadena, Jason K. Blackburn & Sadie J. Ryan Article first published online: 11 FEB 2020 International Journal of Health Geographics […]

Geography Colloquium: Decisions will be made – modeling vector borne disease at multiple scales for different purposes and use

Speaker: Dr. Sadie Ryan Associate Professor, Department of Geography, University of Florida Thursday, January 16, 2020 2:50-3:50 PM (Period 8) Turlington Hall Room 3018 University of Florida All are welcome to attend. Forecasting the impacts of climate change on vector-borne diseases (VBDs)—especially those under current public scrutiny and concern, such as malaria, dengue, chikungunya, and […]

Insecticide Resistance Threatens the Control of Mosquito-Borne Disease in Ecuador

GAINESVILLE – In the battle against vector borne disease, mosquito control using insecticides is an essential tool. But what happens when that tool starts to fail, and how do you know it? Insecticides are regularly used by public health agencies to reduce populations of blood-sucking mosquitoes. Effective control programs are important to public health because, […]

New maps show where mosquitoes will invade Ecuador’s Andes mountains

GAINESVILLE – Blood sucking insects such as the Yellow fever mosquito, Aedes aegypti, are more than just a nuisance in Ecuador, they also spread diseases such as dengue fever, chikungunya and Zika. A warming world means that public health officials must decide where to direct surveillance and mosquito control efforts not only today, but also […]

Social-Ecological Factors Drive Dengue and Mosquito Presence in the Galapagos

GAINESVILLE, FL – With its turquoise waters and abundant wildlife, Ecuador’s Galapagos Islands have long been a vacation dream of many. Tourist guides highlight playful sea lions and giant tortoises, but they do not talk about the mosquitoes. For the more than 30,000 people who live there, emerging epidemics of mosquito-borne disease such as dengue, […]

Geography Grad student receives best PhD paper at the 2018 SEDAAG annual meeting!

Second-year PhD student Stephanie Mundis of the Quantitative Disease Ecology & Conservation Lab, advised by Dr. Sadie Ryan, was recognized for her paper and presentation at the 2018 SouthEastern Division of the American Association of Geographers. Her presentation, “Spatial analysis of pyrethroid resistance genotypes in Aedes aegypti mosquitoes in Florida,” focused on spatial patterns in […]

Temperature drives Zika virus transmission: evidence from empirical and mathematical models

RYAN – Temperature drives Zika virus transmission: evidence from empirical and mathematical models Blanka Tesla, Leah R. Demakovsky, Erin A. Mordecai, Sadie J. Ryan, Matthew H. Bonds, Calistus N. Ngonghala, Melinda A. Brindley, Courtney C. Murdock Article first published online: 15 AUG 2018 Proceedings of the Royal Society B DOI: 10.1098/rspb.2018.0795 ABSTRACT: Temperature is a […]

UF Researchers Refine Zika Transmission Models

GAINESVILLE, FL – A University of Florida Medical Geography researcher recently participated in a study that found that current estimates of Zika virus transmission vastly over predict its possible range. Temperature is a major driver of vector-borne disease transmission, but current transmission models rely on untested assumptions about life history of Zika infected Aedes aegypti […]

Nonlinear and delayed impacts of climate on dengue risk in Barbados: A modelling study

LIPPI, RYAN – Nonlinear and delayed impacts of climate on dengue risk in Barbados: A modelling study Rachel Lowe, Antonio Gasparrini, Cédric J. Van Meerbeeck, Catherine A. Lippi, Roché Mahon, Adrian R. Trotman, Leslie Rollock, Avery Q. J. Hinds, Sadie J. Ryan, Anna M. Stewart-Ibarra Article first published online: 17 JUL 2018 PLOS Medicine DOI: […]

UF Researchers Make New Strides in Predicting Dengue Fever Outbreaks

GAINESVILLE, FL – Medical Geography researchers from the University of Florida recently participated in a study that successfully predicted dengue fever outbreaks on the Caribbean island of Barbados, using climate data. This paper is part of a special issue of PLOS MEDICINE, focusing on the impacts of climate change on health, and is a result […]

Farewell to summer MedGeo researcher

This summer, Geography’s Ryan Lab and the Emerging Pathogens Institute were proud to host Lauren Fregosi as a summer research intern working on Dr. Sadie Ryan‘s National Science Foundation’s Ecology and Evolution of Infectious Diseases (NSF EEID) grant. The internship, which was offered through the NSF Research Experience for Undergraduates (REU) program, was focused on modelling approaches […]

Knowledge, attitudes, and practices regarding dengue infection among public sector healthcare providers in Machala, Ecuador

RYAN – Knowledge, attitudes, and practices regarding dengue infection among public sector healthcare providers in Machala, Ecuador Andrew S. Handel, Efraín Beltrán Ayala, Mercy J. Borbor-Cordova, Abigail G. Fessler, Julia L. Finkelstein, Roberto Xavier Robalino Espinoza, Sadie J. Ryan and Anna M. Stewart-Ibarra Article first published online: 01 JUN 2016 Tropical Diseases, Travel Medicine and Vaccines DOI: […]

How does a mosquito in Ecuador affect people around the world?

Geography’s Dr. Sadie Ryan‘s NSF funded research in Ecuador was recently profiled for part of UF’s GatorGood initiative. Dr. Ryan’s work is focused on the impact of climate gradients on malaria, dengue fever, and cholera in Ecuador. Find out more about the far-reaching effects if  Dr. Ryan’s work and learn how you can help contribute to the […]

NSF Funding UF Research on Climate Change Impacts on Vectorborne Disease

GAINESVILLE, Florida — A new 5 year multi-institutional collaborative research grant of $1.85 million funded by the National Science Foundation’s Ecology and Evolution of Infectious Diseases (NSF EEID) program will support research on the effect of temperature on 13 different diseases transmitted by insects. It will also measure the capacity for two common disease-carrying mosquitoes […]