Two Chinese nationals have been charged with smuggling into the U.S. a sample of Fusarium graminearum, a dangerous agricultural fungus that produces toxins harmful to humans and livestock.
Federal authorities identified the suspects as Yunqing Jian, 33, and Zunyong Liu, 34.
According to a Department of Justice (DOJ) press release, Jian, who worked at a University of Michigan lab, allegedly received Chinese government funding for her research on the fungus.
The complaint, filed in federal court in the Eastern District of Michigan, also reveals that Jian has previously been involved in smuggling biological materials into the U.S. Additionally, the complaint alleges that Jian’s electronic devices contain information indicating her membership in and loyalty to the Chinese Communist Party.
Jian’s boyfriend, Liu, concealed samples of the biological pathogen inside tissues in his luggage during a July 2024 trip. He initially denied carrying any research materials but later admitted to hiding the samples to avoid detection at Detroit Metropolitan Airport.
According to the DOJ, the fungus causes “head blight,” a disease affecting wheat, barley, maize, and rice. Fusarium graminearum’s toxins can cause vomiting, liver damage, and reproductive defects in both humans and livestock.
The couple was charged with conspiracy, smuggling, visa fraud, and making false statements.
“The alleged actions of these Chinese nationals—including a loyal member of the Chinese Communist Party—are of the gravest national security concerns,” said U.S. Attorney Jerome Gorgon.
“The federal charges announced today against Yunqing Jian and Zunyong Liu, both residents of the People’s Republic of China, signify a crucial advancement in our efforts to safeguard our communities and uphold national security,” said Cheyvoryea Gibson, Special Agent in Charge of the FBI Detroit Field Office.
Meanwhile, in a statement, the University of Michigan said it received no Chinese government funding related to the individuals’ research and is cooperating with federal authorities.
