Academic Journal

Modelling the impact of hybrid immunity on future COVID-19 epidemic waves

التفاصيل البيبلوغرافية
العنوان: Modelling the impact of hybrid immunity on future COVID-19 epidemic waves
المؤلفون: Thao P. Le, Isobel Abell, Eamon Conway, Patricia T. Campbell, Alexandra B. Hogan, Michael J. Lydeamore, Jodie McVernon, Ivo Mueller, Camelia R. Walker, Christopher M. Baker
المصدر: BMC Infectious Diseases, Vol 24, Iss 1, Pp 1-14 (2024)
بيانات النشر: BMC, 2024.
سنة النشر: 2024
المجموعة: LCC:Infectious and parasitic diseases
مصطلحات موضوعية: Epidemiology, Mathematical modelling, Vaccination, Variants, Infectious and parasitic diseases, RC109-216
الوصف: Abstract Background Since the emergence of SARS-CoV-2 (COVID-19), there have been multiple waves of infection and multiple rounds of vaccination rollouts. Both prior infection and vaccination can prevent future infection and reduce severity of outcomes, combining to form hybrid immunity against COVID-19 at the individual and population level. Here, we explore how different combinations of hybrid immunity affect the size and severity of near-future Omicron waves. Methods To investigate the role of hybrid immunity, we use an agent-based model of COVID-19 transmission with waning immunity to simulate outbreaks in populations with varied past attack rates and past vaccine coverages, basing the demographics and past histories on the World Health Organization Western Pacific Region. Results We find that if the past infection immunity is high but vaccination levels are low, then the secondary outbreak with the same variant can occur within a few months after the first outbreak; meanwhile, high vaccination levels can suppress near-term outbreaks and delay the second wave. Additionally, hybrid immunity has limited impact on future COVID-19 waves with immune-escape variants. Conclusions Enhanced understanding of the interplay between infection and vaccine exposure can aid anticipation of future epidemic activity due to current and emergent variants, including the likely impact of responsive vaccine interventions.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1471-2334
Relation: https://doaj.org/toc/1471-2334
DOI: 10.1186/s12879-024-09282-4
URL الوصول: https://doaj.org/article/6db727c006d740c6a900ae607dd48593
رقم الانضمام: edsdoj.6db727c006d740c6a900ae607dd48593
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14712334
DOI:10.1186/s12879-024-09282-4