New research suggests that people who are undecided about vaccines are more likely to be influenced on Facebook by anti-vaxxer groups than government health officials.
Researchers at George Washington University in Washington, D.C., developed a cluster map that outlined the vaccine conversations among 100 million Facebook users from around the world during the measles outbreak in 2019.
The map, published Wednesday in the journal Nature, shows dots of three colours: blue, red and green. The blue dots represent pro-vaccination Facebook groups, including government health officials, the red dots are anti-vaccination Facebook groups, and the green dots are undecided groups.