Cited by 416SARS-CoV-2 and COVID-19 ResearchCOVID-19 epidemiological studiesViral Infections and Outbreaks Research

Immunological characteristics govern the transition of COVID-19 to endemicity

Open access
Lavine, Jennie S., Bjornstad, Ottar N., Antia, Rustom·2021·Science

Published version of a preprint

Abstract

Taming a pandemic: One year after its emergence, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become so widespread that there is little hope of elimination. There are, however, several other human coronaviruses that are endemic and cause multiple reinfections that engender sufficient immunity to protect against severe adult disease. By making assumptions about acquired immunity from its already endemic relatives, Lavine et al. developed a model with which to analyze the trajectory of SARS-CoV-2 into endemicity. The model accounts for SARS-CoV-2's age-structured disease profile and assesses the impact of vaccination. The transition from epidemic to endemic dynamics is associated with a shift in the age distribution of primary infections to younger age groups, which in turn depends on how fast the virus spreads. Longer-lasting sterilizing immunity will slow the transition to endemicity. Depending on the type of immune response it engenders, a vaccine could accelerate establishment of a state of mild disease endemicity. Science , this issue p. 741

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  • If immunity is insufficient to block viral replication, ongoing transmission is expected to reboost immune responses, leading to a long-term equilibrium of transmission and immune boosting.

    “If immunity is insufficient to block viral replication, then any ongoing transmission is expected to reboost immune responses, leading to a long-term equilibrium of transmission and immune boosting82.”
  • When immunity falls below the level needed to block infection yet still guards against severe disease, and when post-reinfection viral loads suffice for spread, endemic transmission might boost memory and keep protection up.

    “Immunity may drop below the threshold required to prevent infection but still provide sufficient protection against severe illness. If viral levels after reinfection are high enough to enable transmission, the endemic spread of infection may boost memory responses to maintain immunity at protective levels82.”

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Research works printed but not linked: 1

  1. [40]National Center for Health Statistics, Mortality in the United States, 2018; www.cdc.gov/nchs/data/databriefs/db355_tables-508.pdf#page=3%202018%20data. 31944640

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Authors
Lavine, J. S., Bjornstad, O. N., & Antia, R.
Affiliations
  • Emory University (US)
  • Department of Biology and Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, PA 16802, USA.
Corresponding author
Lavine, Jennie S.
Venue
Science
Published
2021-02-12
Volume
371
Issue
6530
Pages
741-745
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W3119411150
Cited by
416
References
40
Citations by year
2026: 9 · 2025: 29 · 2024: 62 · 2023: 62 · 2022: 99 · 2021: 155
FWCI
29.93
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion, cc-by)
  • medRxiv (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Informationszentrum Lebenswissenschaften (ZB MED) (submittedVersion, cc-by)
Funders
NIH Office of the Director (U01AI150747, U01 HL139483, U01 AI144616)
Topics
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Physical Sciences › Mathematics › Modeling and Simulation › COVID-19 epidemiological studies
  • Health Sciences › Medicine › Infectious Diseases › Viral Infections and Outbreaks Research
Keywords
SARS-CoV-2, COVID-19 pandemic, endemicity, waning immunity, human coronaviruses, common cold, disease severity, vaccine rollout, vaccination strategies, mathematical model
MeSH terms
Reinfection, COVID-19, SARS-CoV-2, COVID-19 Vaccines, Adolescent, Adult, Antibodies, Viral, Child, Child, Preschool, Humans, Immunoglobulin G, Immunoglobulin M, Infant, Severity of Illness Index, Seroepidemiologic Studies, Age Distribution, Coronavirus, Coronavirus Infections, Endemic Diseases, Communicable Diseases, Emerging, Severe Acute Respiratory Syndrome, Adaptive Immunity, Epidemics

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