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COVID-19 Vaccine Uptake by Infection Status in New South Wales, Australia

Heather F Gidding, Sandrine Stepien, Jiahui Qian

    Emerging Infectious Diseases
    |April 4, 2023
    PubMed

    Insights

    COVID-19 vaccine coverage is lower in infected individuals compared to uninfected individuals across all age groups. Increasing vaccination uptake, even after infection, is crucial for reducing illness rates.

    Area of Science:

    • Public Health
    • Epidemiology
    • Vaccinology

    Background:

    • COVID-19 vaccination is a key strategy for disease control.
    • Understanding vaccination patterns across different population segments is essential.
    • Infection status may influence vaccine uptake, requiring investigation.

    Purpose of the Study:

    • To analyze COVID-19 vaccination uptake based on infection status in Australia.
    • To identify disparities in vaccine coverage between infected and uninfected populations.
    • To inform strategies for improving vaccination rates.

    Main Methods:

    • Utilized linked Australian public health data.
    • Compared COVID-19 vaccination coverage between individuals with and without a history of infection.
    • Analyzed data across all age demographics.

    Main Results:

    • Vaccination coverage was significantly lower among individuals who had been infected with COVID-19 compared to those who had not.
    • This trend was observed across all age groups studied.
    • Previously infected individuals showed lower uptake even after the recommended postinfection waiting period.

    Conclusions:

    • Lower vaccination uptake in infected populations poses a public health concern.
    • Targeted strategies are needed to increase vaccine uptake among both infected and uninfected individuals.
    • Enhancing vaccine coverage, particularly among those previously infected, is vital for mitigating COVID-19 morbidity.

    Keywords:
    AustraliaCOVID-19SARS-CoV-2coronavirus diseasedata linkagerespiratory infectionssevere acute respiratory syndrome coronavirus 2vaccinationviruses

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