Impacts of conformist on vaccination campaign in complex networks

Lu, Yikang; Geng, Yini; Guo, Wen; Ши, Лей

doi:10.1016/j.physa.2019.121124

Cited by 18 publications

(6 citation statements)

References 43 publications

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“…Once the epidemic season ends, the utility of individuals in the season is calculated. Similar to previous studies, we suppose that the vaccination is valid permanently in each season and is effective for only one season [16,20,44], especially herd immunity is considered in our model. Herd immunity is a standard notion from mathematical epidemiology: the disease will die out on its own if more than a certain fraction (γ) of nodes is vaccinated in the entire network [46].…”

Section: Modelmentioning

confidence: 99%

“…, where N i represents the number of individuals in i's neighbors who adopt the same strategy x i and k i represents the number of the individual i's neighbors. N i − ki 2 is the strategy conformity effect to individual i after determining the strategy [39,43,44].…”

Section: Utility Functionmentioning

confidence: 99%

“…1 K indicates the so-called intensity of selection. Without loss of generality, we keep K = 0.1 in this study [44,45],cc. Note that K = 0 and K = 1 depict the completely deterministic and random selection of individual strategies, respectively:…”

Section: Strategy Updating Rulesmentioning

confidence: 99%

“…For instance, Cui et al presented an evolutionary model to explore the impact of conformity on the prisoner's dilemma game and found that when the temptation to defect is low and both conformism and local interactions are present, the system can reach high levels of cooperation or even a full cooperation state [37]. Lu et al discussed the influence of the conformity-driven strategyupdating mechanism on the vaccination behaviors based on the susceptible-infected-recovered (SIR) model [44]. Based on this two-stage model proposed by [20], [45] established a framework considering the conformity-motivated strategy update as well as myopic best response-motivated strategy update on a family network which is demonstrated by a twolayered network.…”

Section: Introductionmentioning

confidence: 99%

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Impact of strategy conformity on vaccination behaviors

Wang

Zhou

et al. 2022

Front. Phys.

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In most of the studies focusing on the conformity of voluntary vaccination decisions, the conformity was always directly modeled as a conformity-driven strategy-updating rule. However, the utility of an individual can also be influenced by the group identity or discrimination behaviors associated with strategy conformity in realities. Thus, a novel utility model of the vaccination game is first formulated in which the influence of strategy conformity is considered. Then, we use the spatial evolutionary game theory to study the dynamics of individual vaccination strategies under the influence of strategy conformity on the scale-free network. The results show that moderate strategy conformity and a high herd immunity threshold have a significant positive effect on vaccination behaviors when the initial vaccination fraction is low. Moreover, for a high initial vaccination fraction, the strong strategy conformity and high herd immunity threshold are more conducive to encourage vaccination behavior. To analyze the model sensitivity, experiments are conducted in the small world network and square lattice network. In addition, we performed the sensitivity analysis on vaccination effectiveness. Finally, the generality of strategy conformity effect is investigated when the myopic strategy updating rule is adopted in the whole population. The result shows that vaccination behaviors can also be promoted under the condition of moderate strategy conformity and low initial vaccination fraction.

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Section: Modelmentioning

confidence: 99%

Section: Utility Functionmentioning

confidence: 99%

Section: Strategy Updating Rulesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of strategy conformity on vaccination behaviors

Wang

Zhou

et al. 2022

Front. Phys.

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“…In the field, elements of human behaviours, such as characteristics [6] , [7] , [8] , behavioural patterns [9] , [10] , and age [11] , [12] , have proven crucial in halting epidemics. However, an epidemic can fail to be eradicated due to the vaccination dilemma [13] .…”

Section: Introductionmentioning

confidence: 99%

Effect of vaccine efficacy on disease transmission with age-structured

Ши

2022

Chaos, Solitons & Fractals

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Recent outbreaks of novel infectious diseases (e.g., COVID-19, H2N3) have highlighted the threat of pathogen transmission, and vaccination offers a necessary tool to relieve illness. However, vaccine efficacy is one of the barriers to eradicating the epidemic. Intuitively, vaccine efficacy is closely related to age structures, and the distribution of vaccine efficacy usually obeys a Gaussian distribution, such as with H3N2 and influenza A and B. Based on this fact, in this paper, we study the effect of vaccine efficacy on disease spread by considering different age structures and extending the traditional susceptible-infected-recovery/vaccinator(SIR/V) model with two stages to three stages, which includes the decision-making stage, epidemic stage, and birth-death stage. Extensive numerical simulations show that our model generates a higher vaccination level compared with the case of complete vaccine efficacy because the vaccinated individuals in our model can form small and numerous clusters slower than that of complete vaccine efficacy. In addition, priority vaccination for the elderly is conducive to halting the epidemic when facing population ageing. Our work is expected to provide valuable information for decision-making and the design of more effective disease control strategies.

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