COVID-19 vaccine uncertainty reasons reported by adults worldwide 2021, by country
As of September 2021, around 34 percent of adults in the United States reported that they are not sure about getting a COVID-19 vaccine due to fears about side effects, while around 10 percent of adults stated that they don't think the vaccine will be effective. This statistic illustrates the reasons for uncertainty about COVID-19 vaccines as reported by adults worldwide as of September 2021, by country.