News What will sway Americans to take a COVID-19 vaccine? Efficacy, adverse effects and politics, survey says October 20, 2020 Adrianna Rodriguez, USA TODAY Comments Off on What will sway Americans to take a COVID-19 vaccine? Efficacy, adverse effects and politics, survey says According to the survey of nearly 2,000 adults, people were most swayed by vaccine efficacy, adverse effects, duration of protection and politics.