Before revision:  To investigate the scope and causes of public opinions, we compare the demographics, social capitals , income, religious statuses as well as the political affiliations of these three groups and find significant differences . A lower  acceptance level for the potential COVID-19 vaccines is observed among the socioeconomically disadvantaged groups.
After revision:  To investigate the scope and causes of public opinions, we compare the demographics, social capitals , income, religious statuses as well as the political affiliations of these three groups to investigate the scope and causes of public opinions . A lower acceptance level for the potential COVID-19 vaccines is observed among the socioeconomically disadvantaged groups.