A security engineer for the U.S. State Department, Lenzi was among a number of diplomats who were brought home last year from the U.S. Consulate in Guangzhou, China, after reporting as-yet-unexplained symptoms.
The State Department has drawn no link between those diplomats and 26 workers at the U.S. Embassy in Cuba who were withdrawn in 2017 after reporting symptoms, including those consistent with minor traumatic brain injury, or concussion.
"The engineer in me wants to get to the bottom of this type of concussion and exactly what happened to me," Lenzi said while signing the pledge in Boston with representatives of the Concussion Legacy Foundation, an organization that collaborates with the BU researchers by recruiting donors and publicizing the dangers associated with head trauma.
Chris Nowinski, co-founder and chief executive of the foundation, said the brain injury community must continue research to find answers for head trauma. "There are patients out there that need answers from the scientific community," he said.
Lenzi now works at a State Department passport office in his native New Hampshire. He said he and his wife began hearing strange noises in their apartment in 2017, and later developed symptoms consistent with concussion. In an interview with the AP, he said he initially did not associate the noises with the symptoms, believing the headaches may have been triggered by smog.
Lenzi has not been identified by U.S. officials as someone suffering from injuries similar to those suffered by diplomats in Cuba. The State Department said Friday that out of 15 diplomats or family members from China who underwent additional medical evaluation in the U.S., 14 were found not to have symptoms like those from Cuba and the other case had not been determined.
The Associated Press has reported that an interim FBI report found no evidence that sound waves could have caused the injuries to the personnel in Cuba. The department said its investigation was continuing and that its top priority was the safety and security of U.S. personnel.
Preliminary findings by a team at the University of Pennsylvania and published in the Journal of the American Medical Association on 24 personnel affected in Cuba showed they had sensory and memory problems similar to the brain dysfunction seen with concussions.
More than 5,000 people have pledged to donate their brains to the BU researchers and 716 have been donated so far, Nowinski said. More than 360 diagnoses of chronic traumatic encephalopathy, or CTE, have been made to date, representing more than 70 percent of confirmed cases worldwide, the foundation said.