美国驻越南大使馆在一份声明中称，美国副总统卡玛拉·哈里斯周二对越南的访问因一份关于“异常健康事件”的报告而中断，这是越南神秘出现医疗症状的最新案例通常被称为“哈瓦那综合症。”
这是越南事件的第一份公开报告，也是第一份公开报告的涉及美国高级领导人海外旅行的案件。
的来源无法解释的健康事件目前有130多个可能的病例，仍然未知，惹恼美国官员在中央情报局、国务院和国家安全委员会的多重调查和工作队中，国家安全委员会正在领导一项政府范围的调查。
自美国国务院、中央情报局和美国驻哈瓦那大使馆的其他人员首次报告奇怪的经历以来，已经过去了近五年，比如压力或振动的感觉、刺耳的声音和虚弱的症状，包括头痛、恶心、认知缺陷以及视觉、听觉或平衡障碍。几名官员被诊断患有创伤性脑损伤。
从那以后，其他几个国家也报告了病例，包括中国、乌兹别克斯坦、俄罗斯、奥地利、德国和美国，尽管目前还不清楚有多少美国官员确诊了医学症状。
“虽然目前这还不是确诊病例，但我们接受任何报告的事件...相当严重，”白宫新闻秘书珍·普萨基(Jen Psaki)说，并补充说，这一事件是最近报道的，影响了大使馆的一名美国工作人员，而不是副总统团队的成员。
“这是一个在该国的个人，之前曾被报道过，”普萨基补充说，他说进行了安全评估，并决定哈里斯可以提前旅行。
副总统原定于周二在东南亚之行期间抵达河内，但她离开新加坡的时间推迟了三个多小时。她几个小时后到达，无视记者在停机坪上大声的提问。
“她很好。一切都很好，”哈里斯的发言人西蒙·桑德斯在离开新加坡前告诉记者。
目前尚不清楚美国驻越南使团报告了多少起健康事件，但这是一起引起哈里斯团队和大使馆关注的事件。
“副总统办公室了解到最近在越南河内可能发生的异常健康事件的报告。根据美国大使馆的声明，经过仔细评估，决定继续副总统的行程。
美国政府拒绝提供更多信息，包括事件发生的时间或官员是否被医疗疏散。
一名国务院发言人告诉美国广播公司新闻，该机构“知道越南可能发生不明原因的健康事件的报道”，这是他们在内部使用的另一个术语，用于“哈瓦那综合症”病例，但拒绝谈论个别病例，包括是否有人被疏散。但这位发言人表示，对于哈瓦那综合征病例，医疗后送不一定是出国的专门交通工具，而是“在美国或另一个优秀医疗中心进行咨询，以确定最佳的适当护理。”
上周，美国国务院证实，它知道美国驻德国使团报告的病例。发言人内德·普莱斯告诉记者，他们“大力调查”所有“不明原因的健康事件”，并对报告事件的员工提供“立即和适当的关注和护理”。
在特朗普和拜登政府期间，许多美国官员对领导层越来越失望，因为他们缺乏关于报告病例的信息，或者在提供治疗和护理方面不够积极。
根据美国广播公司新闻首次获得的这份说明，国务卿安东尼·布林肯在给所有工作人员的关于这个问题的第一份说明中承认，政府“能够并将做得更好，让你们了解我们为获得答案、支持受影响的人和保护我们的人民所做的努力”。
但缺乏信息的部分原因是，美国政府对曾经被称为“健康攻击”的东西知之甚少，包括造成这些攻击的原因。
去年12月，美国国家科学、工程和医学科学院发布了一份报告，结论是“定向脉冲射频能量似乎是解释这些病例的最合理机制，尤其是在早期症状明显的个体中。”
中央情报局、国务院和五角大楼都有自己的内部工作队来处理他们人员中的案件，并寻找可能的原因线索。国务院由曾担任过两届大使的帕梅拉·斯普拉特伦监管，而中央情报局则指派了一名对该机构寻找奥萨马·本·拉登的努力至关重要的资深官员来领导其小组。
此外，美国国务院启动了一个试点项目，在人员及其成年家庭成员前往美国海外外交岗位之前，开始记录他们的基线医疗信息。
同样，根据中情局局长比尔·伯恩斯的说法，中情局专注于这一问题的全职医务人员数量增加了两倍。他上个月告诉NPR，虽然症状是“真实的，而且很严重”，但该机构仍然没有关于病因的明确答案。
Possible case of 'Havana syndrome' in Vietnam delays Vice President Harris' visit
Vice President Kamala Harris' visit to Vietnam on Tuesday was interrupted by a report of an "anomalous health incident," the U.S. Embassy in Hanoi said in a statement -- the latest case of the mysterious onset of medical symptoms morecommonly referred to as"Havana syndrome."
This is the first public report of an incident in Vietnam and the first publicly reported case involving a senior U.S. leader's travel overseas.
The source of theunexplained health incidents, which now number over 130 possible cases, remains unknown,vexing U.S. officialsamid multiple investigations and task forces by the CIA, State Department and National Security Council, which is leading a government-wide probe.
It's been nearly five years since State Department, CIA and other personnel at the U.S. Embassy in Havana first reported strange experiences, like feelings of pressure or vibration and a screeching sound and debilitating symptoms, including headaches, nausea, cognitive deficits and trouble with seeing, hearing or balancing. Several officials have been diagnosed with traumatic brain injuries.
Since then, cases have been reported in several other countries, including China, Uzbekistan, Russia, Austria, Germany and the United States, although it's unclear how many U.S. officials have confirmed medical symptoms.
"While this is not a confirmed case at this point in time, we take any reported incident ... quite seriously," said White House press secretary Jen Psaki, adding that the incident was reported recently and affected one U.S. staffer at the embassy, not a member of the vice president's team.
"It was an individual who was in country and had been reported previously," Psaki added, saying a security assessment was conducted and decided that Harris could travel ahead.
The vice president was set to arrive in Hanoi Tuesday during a tour of Southeast Asia, but her departure from Singapore was delayed by over three hours. She arrived several hours later, ignoring reporters' shouted questions on the tarmac.
"She is well. All is fine," Harris's spokesperson Symone Sanders told reporters before her departure from Singapore.
It's unclear how many health incidents have been reported at the U.S. mission in Vietnam, but it was a single incident that caused concern among Harris' team and the embassy.
"The Vice President's office was made aware of a report of a recent possible anomalous health incident in Hanoi, Vietnam. After careful assessment, the decision was made to continue with the Vice President's trip," according to the U.S. Embassy's statement.
The administration has declined to provide more information, including when the incident took place or whether the official was medically evacuated.
A State Department spokesperson told ABC News that the agency is "aware of reports of possible UHIs (unexplained health incidents) in Vietnam" -- another term they use internally for "Havana syndrome" cases -- but declined to speak to individual cases, including whether anyone was evacuated. But the spokesperson said for Havana syndrome cases, a medevac is not necessarily specialized transportation out of the country, but "a consultation in the United States, or another medical center of excellence, to ascertain the best appropriate care."
Last week, the State Department confirmed that it was aware of reported cases at the U.S. mission in Germany. Spokesperson Ned Price told reporters that they "vigorously investigate" all "unexplained health incidents and provide "immediate and appropriate attention and care" to employees who report one.
Many U.S. officials have grown frustrated with leadership, during both the Trump and Biden administrations, for a lack of information about reported cases or for not being proactive enough in providing treatment and care.
In his first note to all staff about the issue, Secretary of State Antony Blinken acknowledged the administration "can and will do a better job keeping you informed of our efforts to get answers, support those affected, and protect our people," according to the note, obtained first by ABC News.
But the lack of information stems in part from how little the U.S. government knows about what was once referred to as "health attacks," including what is causing them.
Last December, the National Academies of Sciences, Engineering, and Medicine issued a report that concluded that "directed, pulsed radio frequency energy appears to be the most plausible mechanism in explaining these cases, especially in individuals with the distinct early symptoms."
The CIA, State Department and Pentagon all have their own internal task forces to address cases among their personnel and search for possible clues into the causes. The State Department's is overseen by Pamela Spratlen, a two-time ambassador, while the CIA assigned a veteran officer critical to the agency's efforts to find Osama bin Laden to now head its cell.
In addition, the State Department started a pilot program to begin recording baseline medical information of personnel and their adult family members before they move to U.S. diplomatic posts overseas.
Similarly, the CIA has tripled the number of full-time medical personnel focused on the issue, according to its director Bill Burns. He told NPR last month that while the symptoms are "real, and it's serious," the agency still has no definitive answers on the cause.
