'Havana syndrome' could be caused by external energy source: Intel community experts
ABC News
'Havana syndrome' could be caused by an an external energy source, a panel of experts consulted by the intelligence community said in a report out Wednesday.
The U.S. intelligence community still has not determined what is causing the debilitating symptoms and bizarre experiences of hundreds of U.S. government personnel in dozens of locations around the world, according to a new report by a panel of experts.
But the intelligence report on what's commonly called "Havana syndrome" -- because the first cases were reported at the U.S. embassy in Cuba -- does narrow the scope and suggest that "pulsed electromagnetic energy, particularly in the radio frequency range," could be responsible.
The panel of experts -- drawn from science, medicine, and engineering and in and out of the U.S. government -- ruled out several causes for a key group of affected personnel whose cases continue to baffle U.S. officials and medical professionals, including radiation, chemical or biological agents, and sound waves from a "large" distance.
The report, however, found that ultrasound at a close range could also be responsible, while psychogenic factors like stress could exacerbate individual cases or cause other reported incidents.