vaccine/

Black Americans appear to have a higher risk of COVID-19 infection compared with other racial groups, preliminary data from the U.S. Centers for Disease Control and Prevention show.

Comment sections on news articles about the flu vaccine turned into polarized “echo chambers,” where like-minded people reinforced and amplified each other’s beliefs about vaccination in general, according to an analysis of 2,042 reader responses to Canadian Broadcasting Corporation (CBC) online news reports.