The Columbus Dispatch

Russian trolls use vaccine debate to sow discord

- By Donald G. McNeil Jr.

“Don’t get vaccines. Illuminati are behind it.”

“Do you still treat your kids with leaves? No? And why don’t you vaccinate them? It’s medicine!”

With messages like those, Russian internet trolls meddling in the 2016 presidenti­al election also lashed out at Americans debating the safety of vaccines, a new study found.

But instead of picking a side, researcher­s said, the trolls and bots they programmed hurled insults at both pro- and anti-vaccine advocates. Their only intent, the study concluded, seemed to be to raise the level of hostility.

“You see this pattern,” said David A. Broniatows­ki, a computer engineer at George Washington University and lead author of the study, which was published Thursday in the American Journal of Public Health. “On guns, or race, these accounts take opposite sides in lots of debates. They’re about sowing discord.”

With colleagues at the University of Maryland and Johns Hopkins University, Broniatows­ki looked at 899 vaccine-related tweets sent from mid-2014 to late 2017.

Some came from accounts known to send out spam or links to malware; more came from accounts that congressio­nal investigat­ors and NBC News have identified as belonging to Russian trolls.

While the spammer and malware accounts mostly disseminat­ed anti-vaccine messages, the Russia-linked ones played both sides.

Most of the anti-vaccine tweets repeated well-known but long-discredite­d rumors, such as those that vaccines cause autism or contain dangerous amounts of mercury. Others accused pharmaceut­ical companies of caring only about profits, not children.

Pro-vaccine tweets from the same accounts argued that vaccines saved lives. Some said they should be mandatory. Some were insulting, such as “you can’t fix stupidity. Let them die from measles, and I’m for vaccinatio­n.”

Other tweets promoted class hostility, saying the elite get “clean vaccines” while normal people did not.

Yet others appeared designed to appeal to the audience for conspiracy websites like Infowars. One claimed that vaccines were part of the world domination plan of the Illuminati secret sect.

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