Unexplained Havana syndrome has US State Department worried

There is no definitive answer as to what triggers Havana syndrome - but that it is real is beyond doubt.
There is no definitive answer as to what triggers Havana syndrome - but that it is real is beyond doubt.PHOTO: REUTERS

WASHINGTON - It started, like many international espionage stories, in Havana, capital of Cuba, the stubbornly communist island nation off the coast of the United States that has long been an irritant to Washington.

That was where, starting in 2016, Central Intelligence Agency officers and State Department employees - at least 26 of them - first reported strange sensations in their heads.

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