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Joe Rogan told his millions of listeners not to take his anti-vaccine advice seriously. Is it too late?

Our data suggests that, over months, his listeners have become wary of coronavirus vaccines

Joe Rogan has the most popular podcast on Spotify. (Lionel Bonaventure/AFP/Getty Images)
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On the April 23 episode of his wildly popular podcast, host Joe Rogan said, “If you’re, like, 21 years old, and you say to me, ‘Should I get vaccinated?’ I’ll go ‘No.’”

After an outcry, Rogan said he is not “an anti-vaxx person” and “I’m not a doctor, I’m a … moron,” cautioning listeners that his show is meant to entertain and not to provide medical advice.

Rogan’s listeners, however, may have already come to accept some of the anti-science claims made on his program. Rogan’s most recent vaccine comments are hardly the only controversial things that have been said on his show. For example, he has hosted guests such as Alex Jones of Infowars who have promoted coronavirus misinformation on his show.

All that could harm U.S. efforts to reach herd immunity, or the point at which so many Americans are immune that the virus can no longer spread. That’s true especially among younger Americans, whom public health outreach efforts have largely ignored.

Why care what Joe Rogan says?

Rogan is not a niche YouTuber with a fringe audience. He is a podcasting juggernaut. His podcast, “The Joe Rogan Experience,” is the most popular podcast on Spotify, itself one of the most popular audio platforms available. With an estimated 11 million listeners per episode, Rogan reaches nearly four times as many people as prime-time cable hosts such as Sean Hannity of Fox News Channel and Rachel Maddow of MSNBC. He’s especially popular among young, mostly White male listeners and has been credited with launching Andrew Yang’s political career.

It’s possible that few Rogan listeners plan to act on his medical advice. But for the past year, we have been polling demographically representative samples of Americans about various topics, including their willingness to be vaccinated against the coronavirus. Our data suggests that Rogan’s comments have an influence.

No, the pandemic didn't sink populism. It might have helped it.

How we did our research

We conducted demographically representative surveys once every two months, beginning in April 2020 and ending in February 2021, via Lucid Theorem’s online opt-in sampling service. Each survey sampled about 1,000 Americans, with the exception of the February 2021 survey, which sampled about 1,500. Lucid Theorem uses quota sampling to produce samples that resemble the U.S. adult population with respect to age, gender identity, racial identity, household income, educational attainment, political partisanship and geographic region. To account for any remaining deviations between the sample and U.S. adult population, we weight responses to U.S. census benchmarks on age, gender, race, household income and educational attainment. Each survey asked respondents to report whether they were “very likely,” “somewhat likely,” “not too likely” or “not likely at all” to be vaccinated against the coronavirus once a vaccine became widely available.

With this information, we scored respondents as more vaccine hesitant — meaning, intending to forgo a vaccine — if they indicated that they were “not too likely” or “not likely at all” to receive a vaccine. In the study’s February wave, those who said they already been vaccinated were scored as not hesitant. We also asked respondents to report how frequently, in the previous month, they had watched or listened to dozens of different programs. In our analysis, we compare the effects of Rogan listenership with how frequently respondents watch “local news” and “national news” broadcasts and listen to programs such as “The Daily” (a popular podcast) and NPR (on the radio).

Respondents could indicate that they watched or listened “never,” “just once or twice,” “about once a week” or “almost every day.” We considered respondents to be regular viewers or listeners of each program if they reported watching or listening to each program at least once a week that month. We also asked respondents about such information as their political partisanship, attitudes toward scientific experts and personal demographics.

The majority of Americans support ‘Bidenomics.’ The pandemic changed minds significantly.

Rogan listeners are skeptical about the vaccine

Even after accounting for a wide range of well-studied social, political and demographic factors that influence intentions to vaccinate against the coronavirus, regular Rogan listeners — who made up 22 percent of our sample — were significantly less likely to intend to vaccinate than those who do not regularly listen.

However, we only found this pattern after the first round of federal government emergency-use approval for the Pfizer-BioNTech and Moderna vaccines in the study’s December and February waves. This coincides with when Rogan began to talk more — and skeptically — about the vaccines. For example, in January 2021, he said he may not receive a shot. That came after he moved from California to Texas to get “more freedom,” while disparaging people who wear masks. Shortly afterward, he posed maskless while meeting the Texas governor.

In short, Rogan repeatedly spread dubious coronavirus-related information. In December 2020, regular Rogan listeners’ intentions to vaccinate were 15 percentage points lower than those of non-listeners. By February 2021, they were 18 percentage points lower, both statistically significant effects.

That’s also noticeably different than for listeners of comparable radio programs and podcasts. Regular NPR radio and “The Daily” podcast listeners, for example, were statistically neither more or less likely to intend to vaccinate throughout the duration of the study and in some survey waves were even significantly more likely than non-listeners to intend to vaccinate. For example, in December 2020, NPR and “The Daily” listeners’ intentions to vaccinate were respectively 18 and 19 percentage points higher than those of non-listeners.

The ‘Dr. Rogan’ experience?

Our data is correlational. We cannot determine that listening to Rogan causes someone to become skeptical about the vaccine; people who are skeptical about the vaccine may be more likely to listen to Rogan. But we can conclude that Rogan’s audience is more likely to hesitate to get the vaccine, compared with listeners of our set of other podcasts and radio programs.

This finding is consistent with the idea that Rogan listeners may be heeding his and his guests’ nonexpert medical advice. As someone who is able to garner a truly massive audience in a very fragmented media landscape, Rogan’s voice becomes very important — both because he is influential and because his influence is often ignored by researchers and public health planners who tend to focus on legacy and social media.

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Dominik Stecula (@decustecu) is an assistant professor of political science at Colorado State University.

Matt Motta (@matt_motta) is an assistant professor of political science at Oklahoma State University.

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