Anomalous Health Incidents

Anomalous health incidents are also known as “Havana Syndrome.” They’re rare conditions that were first diagnosed in 2016. Employees of the U.S. Embassy in Havana, Cuba, described sudden unexplained head pressure, head or ear pain, dizziness, and other symptoms.

In recent years, other federal employees reported a series of sudden and disturbing sensory events. The scientific community’s understanding of AHI is still evolving. The Department of Defense is committed to guaranteeing people affected by AHI get the right medical care as quickly as possible.

Frequently Asked Questions

Last Updated 4/16/2025