COVID-19 vaccine hesitancy among medical students, health professionals, and health care workers: an umbrella review.

Vaccination provides great protection against several infections, including coronavirus disease 2019 (COVID-19). However, the endeavor faces multiple context-specific problems that affect its uptake, leading to vaccine hesitancy. Vaccine hesitancy is a focal barrier to the success of COVID-19 vaccination programs. This umbrella review aimed to present a summary of global data regarding vaccine hesitancy and acceptance rates among medical students, health professionals, and health care workers. In this regard, two databases, PubMed and Scopus, were selected for data retrieval and analysis. A search term and an inclusion/exclusion criterion were applied to summarize the findings of existing systematic reviews. A pooled prevalence of vaccine acceptance and hesitancy with 95% confidence interval (CI) was taken as a prerequisite for this review. The results found a high percentage of COVID-19 vaccination ranging from 13.1% (95% CI, 6.9%-20.9%) to 46% (95% CI, 0.38%-0.54%), while the percentage of acceptance varied from 46% (95% CI, 37%-54%) to 83.0% (95% CI, 71%-96%) among medical students, health professionals, and health care workers. This umbrella review found a high percentage of COVID-19 vaccine hesitancy among medical students, health professionals, and health care workers. Further studies analyzing the determinants of vaccine hesitancy are important predictors for successful vaccination programs at the global level.