‘Havana Syndrome’ likely caused by microwaves on December 6, 2020December 6, 2020 ‘Havana Syndrome’ likely caused by microwaves. GET THE FULL STORY Photo credit: U.S. Department of State from United States – U.S. Flag Flaps Outside U.S. Embassy in Havana, Cuba, Public Domain, link. Share this:Click to share on Facebook (Opens in new window)Like this:Like Loading...