CNN reported earlier this week a number of U.S. personnel in China have been sent back to the United States for further health screenings after concerns over reports of mysterious acoustic incidents similar to the Cuba "sonic attacks".
More recently, USA diplomats in China also complained of symptoms similar to the ones suffered by colleagues in Cuba.
That's where doctors have been treating and studying patients previously evacuated from the U.S. Embassy in Havana.
The China incidents affect one of the most important of the seven US diplomatic outposts in the country. Two other officials said the individuals have been brought for testing to the University of Pennsylvania, where doctors have been evaluating, treating and studying Americans affected in Cuba previous year as well as nearly 10 new possible cases from a USA consulate in China. "Instead, move to a different location".
The medical screenings in China are continuing, Nauert said. "The Ministry of Foreign Relations reiterates that no evidence of the alleged incidents has been presented, and maintains its unwavering commitment to cooperate with US authorities".
The department is urging government workers to seek medical attention if they begin experiencing symptoms such as dizziness, headaches or a ringing in the ears.
Two other officials say the individuals are being tested at the University of Pennsylvania.
The issue of the alleged health problems reported by diplomats in Cuba was the argument used by the government of Donald Trump to drastically reduce the personnel in the respective embassies in Havana and Washington, trying to derail the possibility of improvement in bilateral relations. As of May 2017, when the State Department inspector general's office conducted its last inspection of the missions in China, nearly 900 Americans worked at them, including 168 who were hired locally. There are about 170 USA diplomats or employees and their families in Guangzhou.
Several other American workers at the U.S. Consulate in Guangzhou have reported similar symptoms, but the exact number of people who exhibited symptoms or are medically treated are unclear, as stated in the New York Times.