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Updated: Jan 28, 2026
10:31
Isolation and Quantification of Zika Virus from Multiple Organs in a Mouse
Published on: August 15, 2019
8.0K
Effects of multiple transmission pathways on Zika dynamics
Omomayowa Olawoyin1, Christopher Kribs1
1Department of Mathematics, University of Texas at Arlington, 411 South Nedderman Drive Box 19408 Arlington, TX 76019 USA.
Infectious Disease Modelling
|March 7, 2019
Summary
This study models Zika virus transmission, including sexual and vertical routes. Findings show these secondary routes accelerate outbreaks and impact control strategies.
Area of Science:
- Epidemiology
- Mathematical Biology
- Virology
Background:
- Zika virus (ZIKV) primarily spreads via Aedes aegypti mosquito bites.
- ZIKV can also be transmitted sexually and vertically in humans and mosquitoes.
Purpose of the Study:
- To develop a mathematical model incorporating multiple ZIKV transmission routes.
- To analyze the impact of secondary transmission routes on ZIKV outbreaks and control.
Main Methods:
- Developed a deterministic mathematical model for ZIKV transmission.
- Incorporated sexual transmission (human-human, mosquito-mosquito), vertical transmission (mosquito), and vector-borne transmission.
- Performed sensitivity analysis on model parameters.
Main Results:
- Secondary transmission routes increased the basic reproductive number (R0) by 5%.
- Outbreak peak times shifted 10% earlier, and initial epidemic growth accelerated.
- Mosquito biting rate and transmission probability were most sensitive parameters for R0.
Conclusions:
- Secondary transmission routes significantly influence ZIKV epidemiology.
- Understanding these routes is crucial for effective public health control strategies.
- Juvenile mosquito stage dynamics critically affect outbreak timing.
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