U.S. intensifies efforts to address "Havana Syndrome," but answers remain elusive

The U.S. government is intensifying its efforts to address the effects of "Havana Syndrome" as reported cases proliferate and worries mount that its cause remains poorly understood and unidentified publicly, current and former U.S. officials say. 

The steady drumbeat of incidents – dozens of which have been reported by diplomats, intelligence officers and other personnel on multiple continents and within the U.S. since the beginning of the Biden administration – has prompted a multi-agency race to investigate new cases, devise protective technologies and help existing victims get care.   In Congress, lawmakers of both parties are pressuring  the administration to identify a cause and pushing through new funding for victims to help them defray medical costs.