Epidemiology on the Joe Rogan Experience
4 fact-checked claims across 1 episode · Mar 2025 · updated Jul 18, 2026
Each is a receipt: the exact quote, its timestamp, what published evidence says, and who benefits.
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“I read this crazy statistic, and I still can't believe it's real, that 95 to 99 percent of all polio is asymptomatic. So polio virus is what we call a commensa…”
Humphries states that 95 to 99 percent of polio infections are asymptomatic and that poliovirus is a commensal organism.
“And what they found was 98 to 99% of every person they tested, and it was hundreds of people, had evidence of immunity to all three strains of polio. And they …”
Humphries claims a study of a South American tribe found 98 to 99 percent had immunity to all three polio strains despite no paralysis or polio deaths.
“And the fact of the matter is, is that all cancers in humanity have gone up since the inception”
Humphries claims that all cancers in humanity have increased since the beginning of vaccination.
“So it's been a detriment for measles and it's been a detriment for chickenpox. So chickenpox we used to get continuously. Adults didn't get shingles. It was ve…”
Humphries claims shingles was very rare in adults before the chickenpox vaccine came out.