What are the signs and symptoms of Havana syndrome? Are Havana syndrome symptoms contagious?

A person can tell if he or she has Havana syndrome when there is “a sudden hearing of loud noise, pain in one or both ears, feeling of pressure or vibrations in the head, tinnitus, visual problems, vertigo, nausea, and cognitive difficulties.”

Are Havana syndrome symptoms contagious?

The symptoms of Havana Syndrome are not contagious.

What Is Havana Syndrome?

Havana syndrome is a combination of medical symptoms experienced mostly by U.S. government officials and military personnel.

The symptoms is characterized by pain, ringing in the ears, as well as cognitive difficulties. The first case of Havana symptoms was reported in 2016 by U.S. and Canadian embassy staff in Havana, Cuba.

From 2017, more people in the U.S. intelligence, military and their families, reported the same symptoms from across various countries and cities such as China, New Delhi, India, Europe, and Washington, D.C.

Although the cause of this illness is yet to be determined, its symptoms include “a sudden hearing of loud noise, pain in one or both ears, feeling of pressure or vibrations in the head, tinnitus, visual problems, vertigo, nausea, and cognitive difficulties.”

A committee of experts from the National Academies of Sciences, Engineering, and Medicine, have opined that microwave energy “seems to be the most plausible mechanism in explaining these cases, even though each possible cause remains speculative”.

Ultrasound, pesticides, or mass psychogenic illness, have been listed as likely causes.

The US authorities have also reported that it is “very unlikely” that the mysterious illness is as a result of a hostile foreign power.