EVALUATION OF COVID-19 VACCINE EFFECTIVENESS AMONG HEALTHCARE WORKERS USING CASCADE ANALYSIS
Abstract
Background: Healthcare workers in Indonesia have been prioritized for vaccination. Nevertheless, fully vaccinated healthcare workers are still at risk of being infected with COVID-19, but will be less likely to develop severe symptoms, be hospitalized or be at risk for death as compared to those who have not been vaccinated. Objectives: This study aims to analyze the incidence of COVID-19 in fully vaccinated healthcare workers. Methods: This cross-sectional study was conducted in 2021. All healthcare workers who have been fully vaccinated, have recovered from COVID-19 (2-4 weeks after vaccination) and able to complete a questionnaire were the participants. The collected data was then analyzed using the cascade method. Results: Based on the 529 collected questionnaires, by using the cascade analysis conclude that the percentage of healthcare workers who have been fully vaccinated was 99%, healthcare workers who have been fully vaccinated and then infected with COVID-19 was 14%, healthcare workers who have been fully vaccinated, infected with COVID-19 and hospitalized was 4%, healthcare workers who have been fully vaccinated, exposed to COVID-19, hospitalized and experienced the long-haul effect of COVID-19 was 0%. Discussion: Health workers are still at risk of being confirmed by COVID-19, because have high risk of being exposed in the workplace. The risk of being confirmed and severity are also influenced by age, gender and comorbidities. Conclusions: Complete vaccinations of healthcare workers did not reduce their risk of being infected with COVID-19, however, it can reduce the severity and the risk of the long-haul effects.
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Copyright (c) 2022 Bambang Subakti Zulkarnain, Eunice Marlene Sicilia Kundiman, Lily Aina, Nanda Ardianto, Fauzul Meiliani, Melinda Putri Amelia Rachman, Fatimatuz Zahra Oviary Satryo, Pharmasinta Putri Hapsari, Arina Dery Puspitasari, Alfian Nur Rosyid, Tamara nUR Budiarti
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