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UMiami Doctors Report 'Cognitive Fog' Among U.S. Diplomats In Cuba – But Still No Cause

Doctors from the University of Miami's Miller School of Medicine present their findings Wednesday regarding the mysterious illness of U.S. diplomats in Cuba.
The Florida Channel
Leon County Judge John Cooper on June 30, 2022, in a screen grab from The Florida Channel.

Ever since U.S. diplomats in Havana, Cuba, began complaining of mysterious illnesses two years ago, scientists have struggled to identify the cause. Doctors at the University of Miami released their own report on Wednesday – and it shows they’re still struggling.

In late 2016, about two dozen officials working at the U.S. embassy in Havana reported symptoms like hearing loss and migraines. They also said they’d experienced strange sonic blasts at their residences.

They were initially brought to the University of Miami's Miller School of Medicine for observation by a team of doctors. They reported their findings at UM’s Clinical Research Center – and said while they still don’t know what caused the diplomats’ illness, their tests confirmed something did happen to them in Cuba.

“They felt off, they felt imbalanced in their thinking," said Dr. Bonnie Levin, a UM neurology expert. "Increased anxiety and irritability was practically uniform. Trouble regulating their emotion, difficulty paying attention.”

Levin called the diplomats’ common condition a “cognitive fog.” The UM doctors said the specific harm they found was balance disorder and cognitive dysfunction resulting from inner ear damage. 

“We have incontrovertible objective evidence that they had an abnormality," said Dr. Michael Hoffer, another member of the UM team whose report is being published this week in conjunction with the University of Pittsburgh.

"What caused it; who did it; why it was done – we don’t know any of those things. I think it’s vexing for all Americans, all people around the world, that people can be harmed and not know why.”

A patient wearing the 'concussion goggles' used in testing for inner ear harm and imbalance at the University of Miami medical school.
Credit University of Miami Miller School of Medicine
The Florida Channel
A patient wearing the 'concussion goggles' used in testing for inner ear harm and imbalance at the University of Miami medical school.

The UM findings contradict an earlier-released University of Pennsylvania study that found the diplomats suffered mild brain trauma. Hoffer said the disparity may result from the fact that UM observed the patients more immediately after they’d experienced whatever affected them in Cuba.

Theories abound about what happened to the diplomats – including concussive sound blasts or microwaves – as well as who was behind it. (Cuban communist hardliners and Russian agents are the most oft-mentioned suspects.) Cuba questions whether anything really harmed the diplomats, and it denies any role in the mystery, which has strained normalized relations with the U.S.

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