On Wednesday, the State Department’s “travel” Twitter account uploaded a story followed by a warning for personnel in China:
#Guangzhou#China Health Alert: A US gov’t employee in China recently reported subtle and vague, but abnormal, sensations of sound and pressure. The US gov’t is taking these reports seriously and has informed its official staff in China of this event. https://t.co/Gv5WGLJ1N3pic.twitter.com/0ywDAhg9wd