Havana Syndrome: Mystery Illness found in Hanoi in Vietnam – Know Symptoms, Threat and Possible Impact
As per the US Central Intelligence Agency (CIA), over 200 people including American and Canadian diplomats, embassy staff, and spies all over the world have been affected by the Havana Syndrome.
source https://www.jagranjosh.com/current-affairs/havana-syndrome-mystery-illness-found-in-hanoi-in-vietnam-know-symptoms-threat-and-possible-impact-1629961983-1