Examining the uptake of COVID-19 vaccine booster doses among healthcare workers in South Africa: A mixed-methods study

Gavin George · Phiwe Babalo Nota · Michael Strauss · Emma Lansdell · Remco P. H. Peters · Petra Brysiewicz +2 more

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Vaccine Coverage and Hesitancy SARS-CoV-2 and COVID-19 Research COVID-19 epidemiological studies

Abstract

This study aimed examin the factors associated with the uptake and non-acceptance of COVID-19 vaccine booster doses among healthcare workers (HCWs) in South Africa. We used a mixed-methods design with data from a web-based self-administered survey followed by semi-structured in-depth interviews (IDIs) with selected participants. Of the 6235 HCWs included in our analysis who had fully vaccinated, 3470 (56%) had taken their booster dose with a further 17% intending to get the booster. HCWs aged 35 to 49 years (OR = 1.30 [95% CI: 1.15-1.46]), and those aged 50 years or older (OR = 2.66 [95% CI: 2.32-3.05]) were more likely to get the booster dose. Females were less likely to have received the booster dose (OR = 0.88 [95% CI: 0.79-0.98]) with doctors more likely (OR = 1.58 [95% CI: 1.35-1.84]) than Nurses to have received the booster dose. HCWs in direct contact with patients (OR = 1.17 [95% CI: 1.00-1.38]) and who had previously received a flu vaccine (OR = 1.99 [95% CI: 1.56-2.55]) were more likely to have received the booster dose. Four themes emerged from the qualitative data analysis: (1) Vaccination as routine practice among HCWs; (2) Emergence of new COVID-19 variants necessitating vaccine boosters; (3) Fear of potential side-effects; and (4) Limited value of COVID-19 vaccine boosters. Some HCWs broadly accepted the value of vaccination, and believed that boosters were necessary to effectively combat emergent new virus strains, which contrasted with peers who believed that boosters offered little defence against virus mutations. Fear prohibited some HCWs from getting the booster, with some having experienced adverse side effects from their initial vaccination, whilst others were concerned about future complications. Waning booster uptake rates could be arrested through invigorated communication strategies, while effective evidence-based training can potentially create positive normative vaccination practices amongst HCWs.

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References

2006Using thematic analysis in psychology 2007Toward a Definition of Mixed Methods Research 2017How to Construct a Mixed Methods Research Design 2016Using behavior change frameworks to improve healthcare worker influenza vaccination rates: A systematic review 2022Global COVID-19 Vaccine Acceptance: A Systematic Review of Associated Social and Behavioral Factors 2021COVID-19 Vaccine Hesitancy and Attitude toward Booster Doses among US Healthcare Workers 2021COVID-19 Vaccine Booster Hesitancy (VBH) of Healthcare Workers in Czechia: National Cross-Sectional Study 2022Disparities in COVID-19 vaccine uptake among health care workers

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