Cited by 499COVID-19 epidemiological studiesSARS-CoV-2 and COVID-19 ResearchMathematical and Theoretical Epidemiology and Ecology Models

Herd immunity – estimating the level required to halt the COVID-19 epidemics in affected countries

Open access
Kwok, Kin On, Lai, Florence, Wei, Wan In, Wong, Samuel Yeung Shan, Tang, Julian W.T.·2020·Journal of Infection

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Crossref · 10.1016/j.jinf.2020.03.027

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7 of 7 references verified0 citation errors · 0 not checkable

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  • In both countries, as of September 2020, fewer people would 'definitely' take a COVID-19 vaccine than is likely required for herd immunity.

    “Here we show that in both countries-as of September 2020-fewer people would 'definitely' take a vaccine than is likely required for herd immunity”

    From Measuring the impact of COVID-19 vaccine misinformation on vaccination intent in the UK and USA (2021) · cites this paper as [15]

    The paper’s main text gives a formula for the minimum population immunity needed to halt spread, and Table 1 estimates thresholds for countries using data as of 13 March 2020. It does not report September 2020 vaccine willingness, whether people would ‘definitely’ take a vaccine, or a comparison between willingness and those thresholds in the two countries. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • A novel COVID-19 vaccine will need to be accepted by at least 55% of the population to provide herd immunity, with estimates reaching as high as 85% depending on country and infection rate.

    “It is estimated that a novel COVID-19 vaccine will need to be accepted by at least 55% of the population to provide herd immunity, with estimates reaching as high as 85% depending on country and infection rate 15,16 .”

    From Measuring the impact of COVID-19 vaccine misinformation on vaccination intent in the UK and USA (2021) · cites this paper as [15]

    In the main text (page unavailable), the paper defines a critical level of population immunity that can be acquired through vaccination or infection. Table 1 reports country-specific thresholds, including 85.0% for Bahrain. It does not estimate vaccine acceptance, and the passages in our copy do not establish a 55% minimum; acceptance cannot be equated with immunity without accounting for vaccine effectiveness. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

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Authors
Kwok, K. O., Lai, F., Wei, W. I., Wong, S. Y. S., & Tang, J. W. T.
Affiliations
  • Chinese University of Hong Kong (HK)
  • University of Leicester (GB)
Corresponding author
  • Kwok, Kin On
  • Tang, Julian W.T.
Venue
Journal of Infection
Publisher
Elsevier BV
Published
2020-06
Volume
80
Issue
6
Pages
e32-e33
ISSN
0163-4453 (ISSN-L)
OpenAlex
W3012844399
Cited by
499
References
7
Citations by year
2026: 2 · 2025: 6 · 2024: 17 · 2023: 40 · 2022: 90 · 2021: 182 · 2020: 161
FWCI
18.80
Type
journal article
Language
en
Open access
Locations
  • Journal of Infection (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Mathematics › Modeling and Simulation › COVID-19 epidemiological studies
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Mathematical and Theoretical Epidemiology and Ecology Models
Keywords
herd immunity, COVID-19 pandemic, SARS-CoV-2, epidemic control, lockdown, non-pharmaceutical interventions, vulnerable populations, herd immunity threshold
MeSH terms
Betacoronavirus, COVID-19, SARS-CoV-2, Antibodies, Viral, Coronaviridae, Humans, Pneumonia, Viral, Prevalence, Coronavirus Infections, Immunity, Herd, Pandemics

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