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Dynamical regulations on mobility and vaccinations for controlling COVID-19 spread
Mevan Rajakaruna1, Harshana Rajakaruna2, Rupika Rajakaruna3
1Department of Mathematical and Computational Sciences, University of Toronto, Mississauga, ON, L5L1C6, Canada.
Scientific Reports
|March 4, 2022
Summary
Daily mobility and vaccination rates significantly impact COVID-19 transmission (R0). Reducing homestay percentages and increasing vaccination coverage are key to controlling the pandemic globally.
Area of Science:
- Epidemiology
- Mathematical Modeling
- Public Health
Background:
- COVID-19 transmission dynamics are influenced by public behavior and vaccination status.
- Understanding these factors is crucial for effective pandemic control.
Purpose of the Study:
- To investigate the impact of daily mobility (homestay percentage) and vaccination percentage on the COVID-19 net reproductive rate (R0).
- To develop a model explaining new COVID-19 trends globally.
Main Methods:
- Utilized a system of time-dynamical equations to model R0.
- Applied the model to ten island nations and subsequently to 124 countries worldwide.
Main Results:
- The developed H- and V-forcing model successfully explains new COVID-19 trends in 106 countries.
- Disease transmission control is achievable by reducing homestay percentages and enforcing continuous vaccination coverage.
- The required critical vaccination coverage decreases as immunity (vaccinated plus recovered) increases.
Conclusions:
- Mobility restrictions and vaccination are effective strategies for controlling COVID-19 transmission.
- The model provides insights for forecasting and managing disease spread, especially concerning vaccine effectiveness and rollout delays.
- Control strategies must be context-dependent and country-specific.
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