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Self-initiated behavioural change and disease resurgence on activity-driven networks

Self-initiated behavioural change and disease resurgence on activity-driven networks

Gozzi, Nicolo, Scudeler, Martina, Paolotti, Daniela, Baronchelli, Andrea and Perra, Nicola ORCID: 0000-0002-5559-3064 (2021) Self-initiated behavioural change and disease resurgence on activity-driven networks. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 104 (1):014307. ISSN 1539-3755 (Print), 1550-2376 (Online) (doi:https://doi.org/10.1103/PhysRevE.104.014307)

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Abstract

We consider a population that experienced a first wave of infections, interrupted by strong, top-down, governmental restrictions and did not develop a significant immunity to prevent a second wave (i.e., resurgence). As restrictions are lifted, individuals adapt their social behavior to minimize the risk of infection. We explore two scenarios. In the first, individuals reduce their overall social activity towards the rest of the population. In the second scenario, they maintain normal social activity within a small community of peers (i.e., social bubble) while reducing social interactions with the rest of the population. In both cases, we investigate possible correlations between social activity and behavior change, reflecting, for example, the social dimension of certain occupations. We model these scenarios considering a susceptible-infected-recovered epidemic model unfolding on activity-driven networks. Extensive analytical and numerical results show that (i) a minority of very active individuals not changing behavior may nullify the efforts of the large majority of the population and (ii) imperfect social bubbles of normal social activity may be less effective than an overall reduction of social interactions.

Item Type: Article
Uncontrolled Keywords: networks, temporal networks, epidemic spreading
Subjects: R Medicine > RB Pathology
Faculty / School / Research Centre / Research Group: Faculty of Business
Faculty of Business > Department of International Business & Economics
Faculty of Business > Networks and Urban Systems Centre (NUSC)
Faculty of Business > Networks and Urban Systems Centre (NUSC) > Centre for Business Network Analysis (CBNA)
Last Modified: 07 Oct 2021 10:39
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
Selected for REF2021: None
URI: http://gala.gre.ac.uk/id/eprint/33176

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