- An advisory group to the State Department analyzed sounds associated with “Havana syndrome.”
- The 2018 report, now declassified, found that the sound was likely produced by a particularly loud cricket.
- The report found that the sounds were unlikely to have caused the potential medical effects.
A 2018 State Department study on the loud noise associated with a mysterious set of symptoms called “Havana Syndrome” found that the noise was likely caused by local crickets.
The document, which was originally marked as “secret” and has since been declassified, was obtained by BuzzFeed News using a Freedom of Information request.
The so-called Havana syndrome is characterized by symptoms consistent with a head injury, such as balance problems, visual impairment, tinnitus, difficulty sleeping, headaches and difficulty thinking or remembering, Insiders Aylin Woodward reported earlier.
Several who had symptoms consistent with the “syndrome” reported hearing a loud sound whose recording was published by the Associated Press in 2017 and can be heard in the video below.
While the declassified report suggests a cause of the noise, it claims not to explain the other worrying symptoms.
Despite increased attention in the following years, no decisive explanation has come from October 2021.
But the 2018 State Department report, led by JASON, a group providing scientific advice to the Pentagon on national security issues, found that “the most likely source is India’s short-tailed cricket,” BuzzFeed reported.
These crickets, also called Anurogryllus celerinictus, are known to be particularly tall. Below is a recording of crickets in Jamaica:
The results are in line with the results of a study published in 2019.
It is still not clear what may be causing the suspected syndrome.
Symptoms in line with the inexplicable set of symptoms that get its name from the first reported cases in Havana, Cuba, in 2016, have also been reported for more than 130 spies, diplomats, military service members and other US personnel so far also as two people close at the White House, according to reports.
A National Academy of Science in 2020 found that the most likely explanation for the symptoms appeared to be “pulsating radio frequency energy”, although it could not rule out other leading theories such as chemical exposure, infection or psychological problems.
Cheryl Rofer, a retired chemist from the Los Alamos National Laboratory, previously told Insider that if a microwave weapon had been used, there would be physical marks after the attack.
“The evidence would be on the outside of their body,” she told Insider Aylin Woodward, adding, “It would be like a thermal burn.”
The Pentagon has asked its 2.9 million service members to come forward if they have felt symptoms consistent with the “syndrome,” according to a note seen by The New York Times.