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The case has raised tensions between Cuba and the United States. The US government ordered the removal of some of its diplomatic corps from the embbady in Havana and expelled Cuban diplomats in Washington.
Diplomats complained of symptoms such as headaches, dizziness, partial hearing loss and even cerebral edema. Although the origin of the episodes is unknown, the state department has described them as "attacks".
Scientists badyzed a sound published by the Associated Press News Agency and claimed that it was a common cricket cricket in the Caribbean region on Anurogryllus celerinictus.
Scientist Fernando Montealegre-Zapata, a professor of biology at the University of Lincoln, told The Guardian newspaper that cricket made a loud noise (Listen to a recording of animal noise at a site of University of Florida that has no connection with "sound attacks").
"The recording comes from a cricket belonging to the same group," he said. "The sound of this Caribbean species is about 7,000 Hz and it is emitted at a very high rate, giving the man the sensation of a continuous tinnitus," he said. -he explains. The study done by Montealegre-Zapata with Alexander Stubbs of the University of California indicates that the recording released by AP has a sonic pulse structure different from that emitted by a natural source such as an insect, but cricket is issued by a speaker and recorded inside, it looks like what has been heard.