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Harris trip to Vietnam delayed after report of possible "Havana Syndrome" incident in Hanoi

Possible "Havana Syndrome" case delays Harris trip
Possible "Havana Syndrome" case delays Harris... 00:24

Vice President Kamala Harris and her delegation delayed their departure from Singapore to Hanoi, Vietnam, Tuesday, after they were made aware of an "anomalous health incident" in Hanoi. 

A senior State Department official told CBS News the reported incident that delayed the vice president's trip to Hanoi is consistent with previous reported cases of "Havana Syndrome" in Cuba and around the world. It was serious: at least one official had to be removed by medevac over the weekend. This was not the first reported instance of "Havana Syndrome" in Vietnam, the official said. 

"Earlier this evening, the Vice President's traveling delegation was delayed from departing Singapore because the Vice President's office was made aware of a report of a recent possible anomalous health incident in Hanoi, Vietnam," the State Department said in a statement. "After careful assessment, the decision was made to continue with the Vice President's trip."

The vice president's office declined to answer when they were first alerted about the health reports and whose decision it was for her to continue on to Vietnam. Harris had been scheduled to leave Singapore for Hanoi at 4 p.m. local time, or 4 a.m. ET. 

A State Department spokesperson said the State Department and other partners across the federal government are vigorously investigating reports of possible unexplained health incidents wherever they are reported, and is doing everything possible to make sure employees who reported a possible incident to get immediate attention and care. 

Harris is making her first trip to Asia as vice president, a trip that has continued as the U.S. continues to try to evacuate Americans and vulnerable Afghans from Afghanistan. She aims to strengthen American ties with allies in the region, particularly as China works to exert its influence. 

The government has been 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, according to current and former U.S. officials. Havana Syndrome, which gets its name from the first known cases to be reported by U.S. officers in Havana, Cuba, in 2016, presents in a variety of neurological symptoms, and can include vertigo, ear ringing, nausea and intense headaches. Some people have been diagnosed with Traumatic Brain Injury (TBI), though physical damage to the brain hasn't always been detected. 

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