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Quantifying the COVID-19 endgame: Is a new normal within reach?
Hazhir Rahmandad1, John Sterman1
1MIT Sloan School of Management MIT Room E62-432, 100 Main Street., Cambridge Massachusetts 02142 USA.
System Dynamics Review
|October 17, 2022
Summary
COVID-19 eradication is unlikely. Most nations cannot yet tolerate the disease burden without non-pharmaceutical interventions (NPIs) due to Omicron
Area of Science:
- Epidemiology
- Public Health
- Mathematical Modeling
Background:
- COVID-19 eradication is not feasible, necessitating a "new normal" balancing disease burden and societal restrictions.
- Declining infection fatality rates are observed due to vaccination, prior infections, improved treatments, and the Omicron variant's reduced severity.
- Assessing community tolerance for disease risk is crucial for determining the feasibility of lifting non-pharmaceutical interventions (NPIs).
Purpose of the Study:
- To estimate biological and behavioral factors influencing COVID-19 risks and responses across 93 countries.
- To project the future trajectory of the COVID-19 pandemic.
- To evaluate the readiness of nations to coexist with COVID-19 without NPIs.
Main Methods:
- Utilized a detailed mathematical model of the COVID-19 pandemic.
- Incorporated data from 93 countries to analyze risk and response factors.
- Estimated infection fatality rates, transmissibility, and immunity decay.
Main Results:
- Infection fatality rates have significantly decreased.
- Despite reduced severity, increased Omicron transmissibility and waning immunity cause recurrent waves of infection, hospitalization, and death.
- Most nations lack the tolerance for deaths to abandon NPIs.
Conclusions:
- The emergence of a "new normal" is complicated by repeated COVID-19 outbreaks.
- Societal tolerance for disease burden remains a key factor in determining the future of NPIs.
- Continued monitoring and adaptive strategies are necessary to manage COVID-19.
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