The much-awaited visit of US Vice-President Kamala Harris to Vietnam was delayed due to emergence of a case of ‘Havana Syndrome’.
Havana syndrome is a name given to a mysterious illness that was observed in US diplomatic officials serving in Havana, capital of Cuba.
The travel was reportedly delayed after a case of Havana syndrome was apparently observed in Hanoi, the capital of Vietnam.
Since the beginning of the cases, more than 200 US officials and their family members fell ill due to this mysterious illness.
Apart from US officials, Canadian diplomatic officials and staff also experienced such weird illness during their stay in Cuba.
Start of illness
The health condition was first reported in 2016, when diplomatic staff and US officials serving in Cuba started falling ill.
The patients were reportedly hearing strange sounds along with weird physical sensations different from any other condition.
The sufferers were experiencing severe headaches, nausea, hearing loss, dizziness, sleeping problems along with physical sensations in their hotel room or houses.
Investigation of the illness
The health condition was investigated by CIA, FBI, National Institutes of Health, US military and Centers for Disease Control and Prevention without conclusion.
Some of the researchers say that it was a psychological illness caused due to stressful environment of foreign missions.
A report in December 2020 indicated that the illness was caused by directed pulsed radio frequency (RF) energy.
Sources of such pulses
The report says that the energy were pulsed and directed at victims and not caused due to common exposure to microwave energy, such as, a mobile phone.
The origination of buzzing sound from a particular direction and at a particular part of room further strengthened the theory.
Apart from Cuba, US diplomatic officials serving in Russia, Austria as well as Germany experienced the symptoms of Havana syndrome.