At least two U.S. officials stationed in Germany sought medical care for symptoms of Havana Syndrome, which has been attributed to a concentrated electromagnetic wave attack causing nausea, dizziness, and cognitive impairment. According to The Wall Street Journal, it is the first time the syndrome has been reported in Germany.
Some victims were intelligence officers or diplomats working on Russia-related issues such as gas exports, cybersecurity and political interference, according to U.S. diplomats and people familiar with an investigation into the illness.
The set of symptoms first surfaced in 2016 among U.S. diplomats in Cuba and have since been observed in China, Russia and, more recently, in Austria, a neutral nation. There have been unconfirmed cases in Poland, Taiwan, Georgia and even in Washington, D.C. Some U.S. officials have said the complaints could be caused by attacks using radio-frequency energy such as microwave radiation.
The Journal also interviewed a different Havana Syndrome patient who had been stationed in Europe. After complaining of ear pain and tinnitus, the patient was taken to Walter Reed Medical Center and "doctors there had diagnosed a brain injury of the type seen in people exposed to shock waves from explosions."