Computational modeling of vaccination strategies for infectious disease control: Insights from network-based simulations

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Abstract

Background Computational modeling of disease transmission is crucial for understanding the dynamics of infectious outbreaks and assessing the effectiveness of control measures. These models offer valuable insights into the factors influencing disease spread, enabling public health authorities to develop effective containment strategies. Vaccination is among the most impactful interventions in controlling disease transmission and has proven essential in preventing the spread of contagious diseases such as measles. However, recent trends indicate a concerning decline in the fraction of vaccinated individuals in various populations, increasing the risk of outbreaks. Methods In this study, we utilize computational simulations on graph-based models to analyze how vaccination affects the spread of infectious diseases. By representing populations as networks in which individuals (nodes) are connected by potential transmission pathways (edges), we simulate different vaccination coverage scenarios and assess their impact on disease propagation. Our simulations incorporate high and low vaccination coverage to reflect real-world trends and explore various conditions under which disease transmission can be effectively blocked. Results The results demonstrate that adequate vaccination coverage is critical for halting outbreaks, with a marked reduction in disease transmission observed as the fraction of vaccinated individuals increases. Conversely, insufficient vaccination rates lead to widespread outbreaks, underscoring the importance of maintaining high vaccination levels to achieve herd immunity and prevent resurgence. These findings highlight the vital role of vaccination as a preventative tool and emphasize the potential risks posed by declining vaccination rates. Conclusion This study provides a deeper understanding of how vaccination strategies can mitigate the spread of infectious diseases and serves as a reminder of the importance of maintaining robust immunization programs to protect public health.

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