A recent claim made on Joe Rogan’s podcast about the origins of Lyme disease has sparked pushback from scientists and researchers who say the assertion contradicts established scientific evidence.
During a podcast episode, Rogan stated that Lyme disease “turns out was man-made” and suggested there was “a lot of real evidence that Lyme disease was weaponized.”
He referenced claims that the illness leaked from a laboratory on Plum Island near Lyme, Connecticut, describing an alleged weapons program designed to develop disease-carrying ticks and fleas that could be deployed to overwhelm enemy medical systems.
The claim drew a swift response from archaeologist Flint Dibble, who pointed to concrete evidence contradicting the weaponization theory. Dibble noted that in a social media post that Ötzi the Iceman—a mummified body discovered in the Alps—had Lyme disease 5,300 years ago, as confirmed through genetic sequencing of his preserved tissue.
Scientific research further undermines the man-made origin theory. A comprehensive study led by the Yale School of Public Health found that the Lyme disease bacterium has existed in North America for at least 60,000 years—predating not only the 1976 medical description of the disease in Lyme, Connecticut, but also the arrival of humans on the continent approximately 24,000 years ago.
Katharine Walter, who conducted the research as a doctoral student at Yale, explained that while “the Lyme disease bacterium has long been endemic,” the current epidemic stems from ecological changes rather than laboratory manipulation or recent introduction of the pathogen.
The Yale team sequenced 148 full genomes of Borrelia burgdorferi, the bacterium responsible for Lyme disease, collected from deer ticks across New England, the Midwest, South, and Canada. This genomic analysis revealed that the bacterium likely originated in the northeastern United States and spread naturally across North America to California, transported by birds over long distances and by small mammals regionally.
According to the research, today’s Lyme disease epidemic results from significant ecological transformations rather than bioweaponization. Forest fragmentation and suburbanization throughout New England and the Midwest created ideal conditions for deer tick populations to explode. The dramatic increase in deer populations during the twentieth century—driven by the absence of wolf predators and hunting restrictions—allowed ticks to rapidly expand into suburban areas.
Climate change has also played a role, with warmer winters accelerating tick life cycles and enabling the insects to survive further north each year—an estimated 28 miles annually.
These environmental shifts allowed ticks to thrive in suburbanized landscapes populated by animals like white-footed mice and robins, which serve as excellent hosts for the bacterium. The Centers for Disease Control and Prevention now estimates that more than 300,000 Americans contract Lyme disease annually, with reported cases more than tripling since 1995.
The scientific consensus presents a clear picture: Lyme disease is an ancient pathogen whose current prevalence reflects dramatic ecological changes in modern America, not a laboratory creation gone awry.
