An American citizen working at the U.S. consulate in the southern Chinese city of Guangzhou has reported suffering from "abnormal" sounds and pressure leading to a mild brain injury, the U.S. Embassy said on Wednesday.
The embassy, which issued a health alert to Americans living in China, said it could not link the case to health issues suffered by U.S. government staff in Cuba dating back to late 2016.
The unnamed American citizen assigned to the consulate in Guangzhou had reported a variety of "physical symptoms" dating from late 2017 to April this year, the U.S. Embassy in Beijing said in an email.