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Observational Study
. 2022 Mar;28(3):398-404.
doi: 10.1016/j.cmi.2021.11.011. Epub 2021 Nov 25.

Nationwide effectiveness of five SARS-CoV-2 vaccines in Hungary-the HUN-VE study

Zoltán Vokó  1 , Zoltán Kiss  2 , György Surján  3 , Orsolya Surján  4 , Zsófia Barcza  5 , Bernadett Pályi  6 , Eszter Formanek-Balku  7 , Gergő Attila Molnár  2 , Róbert Herczeg  8 , Attila Gyenesei  8 , Attila Miseta  9 , Lajos Kollár  10 , István Wittmann  11 , Cecília Müller  12 , Miklós Kásler  10
Affiliations
Observational Study

Nationwide effectiveness of five SARS-CoV-2 vaccines in Hungary-the HUN-VE study

Zoltán Vokó et al. Clin Microbiol Infect. 2022 Mar.

Abstract

Objectives: The Hungarian vaccination campaign was conducted with five different vaccines during the third wave of the coronavirus disease 2019 (COVID-19) pandemic in 2021. This observational study (HUN-VE: Hungarian Vaccine Effectiveness) estimated vaccine effectiveness against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and COVID-19-related mortality in 3.7 million vaccinated individuals.

Methods: Incidence rates of SARS-CoV-2 infection and COVID-19-related mortality were calculated using data from the National Public Health Centre surveillance database. Estimated vaccine effectiveness was calculated as 1 - incidence rate ratio ≥7 days after the second dose for each available vaccine versus an unvaccinated control group using mixed-effect negative binomial regression controlling for age, sex and calendar day.

Results: Between 22 January 2021 and 10 June 2021, 3 740 066 Hungarian individuals received two doses of the BNT162b2 (Pfizer-BioNTech), HB02 (Sinopharm), Gam-COVID-Vac (Sputnik-V), AZD1222 (AstraZeneca), or mRNA-1273 (Moderna) vaccines. Incidence rates of SARS-CoV-2 infection and COVID-19-related death were 1.73-9.3/100 000 person-days and 0.04-0.65/100 000 person-days in the fully vaccinated population, respectively. Estimated adjusted effectiveness varied between 68.7% (95% CI 67.2%-70.1%) and 88.7% (95% CI 86.6%-90.4%) against SARS-CoV-2 infection, and between 87.8% (95% CI 86.1%-89.4%) and 97.5% (95% CI 95.6%-98.6%) against COVID-19-related death, with 100% effectiveness in individuals aged 16-44 years for all vaccines.

Conclusions: Our observational study demonstrated the high or very high effectiveness of five different vaccines in the prevention SARS-CoV-2 infection and COVID-19-related death.

Keywords: Coronavirus disease 2019-related death; Coronavirusdisease 2019 infection; Effectiveness; Original submission; Real-world study; Severe acute respiratory syndrome coronavirus-2 infection.

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Figures

Fig. 1
Fig. 1
Launch dates of different vaccine types, dates of their respective second doses, daily number of confirmed SARS-CoV-2 infections, and number of persons covered by available vaccine supply in Hungary between 15 December 2020 and 10 June 2021 by weeks. The dotted line shows the 7-day moving average.
See this image and copyright information in PMC

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References

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