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The illness afflicts only government employees from the United States and Canada. Sufferers report feeling pulsing or hearing a ringing in their ears. Then headaches, dizziness, trouble concentrating and struggles to remember basic words and facts.What is the 'Havana syndrome'?
Mysterious ‘Havana Syndrome’ Continues to Baffle Experts. Most were stationed in Cuba, leading some to call this the “Havana syndrome.” One American government official, though, reported falling ill while in Guangzhou, China. The cause of the illnesses is not clear, but the CBC reports that both the U.S.