Herd immunity and epidemic size in networks with vaccination homophily

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Journal Title
Journal ISSN
Volume Title
Letter
Date
2022-05-12
Major/Subject
Mcode
Degree programme
Language
en
Pages
6
1-6
Series
Physical Review E, Volume 105, issue 5
Abstract
We study how the herd immunity threshold and the expected epidemic size depend on homophily with respect to vaccine adoption. We find that the presence of homophily considerably increases the critical vaccine coverage needed for herd immunity and that strong homophily can push the threshold entirely out of reach. The epidemic size monotonically increases as a function of homophily strength for a perfect vaccine, while it is maximized at a nontrivial level of homophily when the vaccine efficacy is limited. Our results highlight the importance of vaccination homophily in epidemic modeling.
Description
https://arxiv.org/abs/2112.07538
Keywords
Herd immunity, epidemic, vaccination, homophily
Other note
Citation
Hiraoka, T, K. Rizi, A, Kivelä, M & Saramäki, J 2022, ' Herd immunity and epidemic size in networks with vaccination homophily ', Physical Review E, vol. 105, no. 5, L052301, pp. 1-6 . https://doi.org/10.1103/PhysRevE.105.L052301