Der Beitrag von epidemiologischen Modellen zur Beschreibung des Ausbruchsgeschehens der COVID-19-Pandemie DOI Creative Commons
Viola Priesemann, Michael Meyer‐Hermann, Iris Pigeot

et al.

Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz, Journal Year: 2021, Volume and Issue: 64(9), P. 1058 - 1066

Published: July 30, 2021

After the global outbreak of COVID-19 pandemic, an infection dynamic immense extent developed. Since then, numerous measures have been taken to bring under control. This was very successful in spring 2020, while number infections rose sharply following autumn. To predict occurrence infections, epidemiological models are used. These principle a valuable tool pandemic management. However, they still partly need be based on assumptions regarding transmission routes and possible drivers dynamics. Despite individual approaches, systematic data lacking with which, for example, effectiveness could quantified. Such information generated studies is needed enable reliable predictions further course pandemic. Thereby, complexity develop hand available data. In this article, after delineating two basic classes models, contribution assessment various central aspects such as reproduction rate, unreported cases, fatality consideration regionality, shown. Subsequently, use quantify impact effects "test-trace-isolate" strategy described. concluding discussion, limitations modelling approaches juxtaposed their advantages.

Language: Английский

The role of machine learning in health policies during the COVID-19 pandemic and in long COVID management DOI Creative Commons

Lindybeth Sarmiento Varón,

Jorge González-Puelma, David Medina-Ortiz

et al.

Frontiers in Public Health, Journal Year: 2023, Volume and Issue: 11

Published: April 11, 2023

The ongoing COVID-19 pandemic is arguably one of the most challenging health crises in modern times. development effective strategies to control spread SARS-CoV-2 were major goals for governments and policy makers. Mathematical modeling machine learning emerged as potent tools guide optimize different measures. This review briefly summarizes evolution during first 3 years. It details main public challenges focusing on contribution mathematical design government action plans mitigation interventions SARS-CoV-2. Next describes application methods a series study cases, including clinical diagnosis, analysis epidemiological variables, drug discovery by protein engineering techniques. Lastly, it explores use investigating long COVID, identifying patterns relationships symptoms, predicting risk indicators, enabling early evaluation sequelae.

Language: Английский

Citations

10

A mathematical model to assess the effectiveness of test-trace-isolate-and-quarantine under limited capacities DOI Creative Commons
Julian Heidecke, Jan Fuhrmann, Maria Vittoria Barbarossa

et al.

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(3), P. e0299880 - e0299880

Published: March 12, 2024

Diagnostic testing followed by isolation of identified cases with subsequent tracing and quarantine close contacts—often referred to as test-trace-isolate-and-quarantine (TTIQ) strategy—is one the cornerstone measures infectious disease control. The COVID-19 pandemic has highlighted that an appropriate response outbreaks diseases requires a firm understanding effectiveness such containment strategies. To this end, mathematical models provide promising tool. In work, we present delay differential equation model TTIQ interventions for Our incorporates assumption limited capacities, providing insights into reduced in high prevalence scenarios. addition, account potential transmission during early phase infection, including presymptomatic transmission, which may be particularly adverse based numerical experiments inspired spread Germany demonstrate scenario where immunity within population is low pharmaceutical are absent, representative typical situation (re-)emergence therapeutic drugs or vaccines not yet available. Stability sensitivity analyses reveal both disease-dependent disease-independent factors impede enhance success TTIQ. Studying diminishing impact along simulations epidemic wave, highlight consequences intervention

Language: Английский

Citations

3

Understanding Nash epidemics DOI Creative Commons
Simon K. Schnyder, John J. Molina, Ryôichi Yamamoto

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(9)

Published: Feb. 27, 2025

Faced with a dangerous epidemic humans will spontaneously social distance to reduce their risk of infection at socioeconomic cost. Compartmentalized models have been extended include this endogenous decision making: Individuals choose behavior optimize utility function, self-consistently giving rise population behavior. Here, we study the properties resulting Nash equilibria, in which no member can gain an advantage by unilaterally adopting different We leverage analytic solution that yields fully time-dependent rational obtain, 1) simple relationship between distancing and current number infections; 2) scaling results for how peak total cases depend on cost contracting disease; 3) characteristic costs divide regimes strong weak behavioral response; 4) closed form expression value utility. discuss these provide deep intuitive understanding disease dynamics, useful both individuals policymakers. In particular, infections represents heuristic could be communicated encourage, or “bootstrap,”

Language: Английский

Citations

0

Lessons for future outbreaks from successful contact tracing systems in Asia DOI Creative Commons

Joanna Weihui Tan,

Hitoshi Oshitani, Phung Khanh Lam

et al.

The Lancet Regional Health - Western Pacific, Journal Year: 2025, Volume and Issue: 58, P. 101563 - 101563

Published: May 1, 2025

Language: Английский

Citations

0

On the heterogeneous spread of COVID-19 in Chile DOI Open Access
Danton Freire‐Flores,

Nyna Llanovarced‐Kawles,

Anamaria Sanchez–Daza

et al.

Chaos Solitons & Fractals, Journal Year: 2021, Volume and Issue: 150, P. 111156 - 111156

Published: June 12, 2021

Language: Английский

Citations

15

The transmission game: Testing behavioral interventions in a pandemic-like simulation DOI Creative Commons
Jan K. Woike, Sebastian Hafenbrädl, Patricia Kanngießer

et al.

Science Advances, Journal Year: 2022, Volume and Issue: 8(8)

Published: Feb. 25, 2022

During pandemics, effective nonpharmaceutical interventions encourage people to adjust their behavior in fast-changing environments which exponential dynamics aggravate the conflict between individual benefits of risk-taking and its social costs. Policy-makers need know are most likely promote socially advantageous behaviors. We designed a tool for initial evaluations effectiveness large-scale interventions, transmission game framework, integrates simulations outbreak into large-group experiments with monetary stakes. In two studies (n = 700), we found substantial differences five behavioral interventions. A simple injunctive-norms message proved effective, followed by boosting participants' ability anticipate consequences risky behavior. Interventions featuring descriptive norms or concurrent risk information failed reduce risk-taking.

Language: Английский

Citations

10

Optimal strategies for coordinating infection control and socio-economic activities DOI Open Access

Tangjuan Li,

Yanni Xiao

Mathematics and Computers in Simulation, Journal Year: 2023, Volume and Issue: 207, P. 533 - 555

Published: Jan. 20, 2023

Language: Английский

Citations

6

How to coordinate vaccination and social distancing to mitigate SARS-CoV-2 outbreaks DOI Open Access
Sara Grundel, Stefan Heyder,

Thomas Hotz

et al.

medRxiv (Cold Spring Harbor Laboratory), Journal Year: 2020, Volume and Issue: unknown

Published: Dec. 22, 2020

Abstract Most countries have started vaccinating people against COVID-19. However, due to limited production capacities and logistical challenges it will take months/years until herd immunity is achieved. Therefore, vaccination social distancing be coordinated. In this paper, we provide some insight on topic using optimization-based control an age-differentiated compartmental model. For real-life decision making, investigate the impact of planning horizon optimal vaccination/social strategy. We find that in order reduce long run, without overburdening healthcare system, essential vaccinate with highest contact rates first. That also case if objective minimize fatalities provided measures are sufficiently strict. for short-term focus high-risk group.

Language: Английский

Citations

16

Model-based assessment of sampling protocols for infectious disease genomic surveillance DOI
Sebastián Contreras, Karen Oróstica, Anamaria Sanchez–Daza

et al.

Chaos Solitons & Fractals, Journal Year: 2023, Volume and Issue: 167, P. 113093 - 113093

Published: Jan. 3, 2023

Language: Английский

Citations

5

The effectiveness of testing, vaccinations and contact restrictions for containing the CoViD-19 pandemic DOI Creative Commons

Janoś Gabler,

Tobias Raabe,

Klara Röhrl

et al.

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: May 16, 2022

In order to slow the spread of CoViD-19 pandemic, governments around world have enacted a wide set policies limiting transmission disease. Initially, these focused on non-pharmaceutical interventions; more recently, vaccinations and large-scale rapid testing started play major role. The objective this study is explain quantitative effects determining course allowing for factors like seasonality or virus strains with different profiles. To do so, develops an agent-based simulation model, which explicitly takes into account test demand behavioral changes following positive tests. model estimated using data second third wave pandemic in Germany. paper finds that during period where vaccination rates rose from 5 40%, had largest effect reducing infection numbers. Frequent should remain part strategies contain CoViD-19; it can substitute many interventions come at much larger cost individuals, society, economy.

Language: Английский

Citations

8