Report Finds Microwave Energy Likely Made US Diplomats Ill

Cuban officials make a presentation on a series of mysterious illnesses suffered by U.S. and Canadian diplomats in Havana, during a news conference in Havana, Cuba, on March 14, 2019. Ramon Espinosa/AP Photo, File

WASHINGTON—A new report by a National Academy of Sciences committee has found that “directed” microwave radiation is the likely cause of illnesses among American diplomats in Cuba and China.

The study commissioned by the State Department and released Saturday is the latest attempt to find a cause for the mysterious illnesses that started to emerge in late 2016 among U.S. personnel in Havana.