Four new cases of "Havana syndrome," the mysterious illness that strikes US State Dept personnel and their families when stationed overseas, are being reported in Geneva and Paris.

The cause of the condition, which can cause dizziness, tinnitus, neurological damage, insomnia and other problems, is unknown. Speculation as to its origin ranges from crickets to microwaves, to nefarious foreign operatives. RT America's Alex Mihailovich has the details.

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