"Medical Studies: No Physical Evidence of Brain Injury in Havana Syndrome Cases"
New studies by the National Institutes of Health found no evidence of brain injury in scans or blood markers of diplomats and spies who suffered symptoms of Havana syndrome, aligning with U.S. intelligence agencies' conclusions that the symptoms are likely due to environmental factors, existing medical conditions, or stress rather than a hostile foreign power's actions. However, these findings contradict previous research from the University of Pennsylvania, and Dr. David Relman, a scientist with access to classified files, criticized the new studies, suggesting that brain injuries may be difficult to detect and not ruling out the possibility of an external force causing the injuries.
- New Studies Find No Evidence of Brain Injury in Havana Syndrome Cases The New York Times
- In Havana syndrome patients, NIH scientists find no physical trace of harm NPR
- Despite symptoms, NIH research finds no evidence of ‘Havana syndrome’ in brain scans CNN
- No evidence of Havana syndrome brain injury, US studies find Reuters
- Medical studies find no trace of physical harm in Havana syndrome patients The Guardian US
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