There was no evidence of brain injury in the study


US research agency finds no ‘biological abnormalities’ in US officials reporting incidents, but says symptoms are real.
The National Institutes of Health (NIH) in the United States has found no evidence that government employees reporting symptoms of the “Havana Syndrome” suffer from “biological abnormalities”, including brain injury.
In a statement announcing its study on Monday, the US medical research agency stressed that, despite its findings, the unexplained ailments “are very real”.
First reported in the Cuban capital Havana in 2016, the syndrome results in vertigo, headaches, cognitive dysfunction and ear-ringing.
The administration of US President Joe Biden had vowed to work “tirelessly” to tackle Havana Syndrome.
Earlier that year, possible “Havana Syndrome” cases at the US embassy in Hanoi led to Vice President Kamala Harris delaying a visit to Vietnam by three hours.
But several US intelligence agencies concluded last year that it was “very unlikely” that a foreign adversary was responsible for Havana Syndrome.
Still, US officials have sought to acknowledge that those reporting symptoms are indeed suffering from ailments.
Carlo Pierpaoli, a lead author on the NIH study, said lack of evidence of difference in neurological imaging between healthy individuals and those experiencing AHIs “does not exclude that an adverse event impacting the brain occurred” in people with Havana Syndrome symptoms.
“We hope these results will alleviate concerns about AHI being associated with severe neurodegenerative changes in the brain.”

The US research agency states that symptoms are real but does not find any “biological abnormalities” in US officials who report incidents.

There is no proof, according to the National Institutes of Health (NIH) in the US, that government workers who report experiencing “Havana Syndrome” symptoms have “biological abnormalities,” such as brain damage.

The US medical research agency emphasized that the unexplained illnesses “are very real” in a statement announcing its study on Monday, despite its conclusions.

The condition, which was first identified in 2016 in the Cuban capital of Havana, causes vertigo, headaches, cognitive impairment, and ringing in the ears. Since then, US intelligence and foreign service personnel have reported experiencing similar symptoms all over the world.

The National Institutes of Health (NIH) said in a statement on Monday that “a research team using advanced imaging techniques and in-depth clinical assessments found no significant evidence of MRI-detectable brain injury, nor differences in most clinical measures compared to controls, among a group of federal employees who experienced anomalous health incidents (AHIs).”.

Test results and MRI images from over 80 US government employees and their families who are having “anomalous health incidents” were compared to those of healthy volunteers in the study.

As per the NIH, “the investigators failed to pinpoint a coherent group of imaging irregularities that could distinguish individuals with AHIs from the control group.”.

In order to combat Havana Syndrome, US President Joe Biden’s administration had promised to work “tirelessly.”.

Declaring the matter a “urgent priority” for Washington, Secretary of State Antony Blinken named two officials to head the government’s response in November 2021.

That year, Vice President Kamala Harris postponed her visit to Vietnam by three hours due to suspected cases of “Havana Syndrome” at the US embassy in Hanoi.

Early theories suggested that microwaves intentionally aimed at US officials overseas could be the source of the symptoms.

However, a number of US intelligence agencies determined last year that there was “very little chance” that Havana Syndrome was caused by a foreign enemy. A National Intelligence Council report published their conclusions.

Officials in the US have nevertheless made an effort to accept that people who are reporting symptoms are in fact ill.

Lead researcher Carlo Pierpaoli of the National Institutes of Health stated that the absence of evidence of a difference in neurological imaging between healthy individuals and those with AHIs “does not exclude that an adverse event impacting the brain occurred” in symptoms of Havana Syndrome.

According to Pierpaoli’s statement, “it is possible that individuals with an AHI may be experiencing the aftereffects of an event that preceded their symptoms, but the injury did not produce the long-term neuroimaging changes that are typically observed after severe trauma or stroke.”.

“These findings should allay worries that acute hepatic injury (AHI) is linked to serious neurodegenerative alterations in the brain.”. “.

scroll to top