Posted originally on CTH on June 9, 2025 | Sundance 

After reading the details of this arrest involving the smuggling of biological Roundworms, parasitic nematodes that can infect humans and animals, I am definitely adding Ivermectin and fenbendazole to the crisis kit.

Last week, two Chinese nationals were charged with allegedly smuggling into the U.S. a fungus called “Fusarium graminearum, which scientific literature classifies as a potential agroterrorism weapon. This week another Chinese national was arrested for smuggling in biological material containing Roundworms. Both the fungi and the Roundworm material can target and impact the U.S. agriculture sector, i.e. food supply.

DETROIT – Chengxuan HAN, a citizen of the People’s Republic of China (PRC), was arrested and charged in a criminal complaint with smuggling goods into the United States and false statements, announced United States Attorney Jerome F. Gorgon, Jr.

Gorgon was joined in the announcement by Special Agent in Charge Cheyvoryea Gibson, Federal Bureau of Investigation, Detroit Division, Acting Director of Field Operations John Nowak, U.S. Customs and Border Protection and Jared Murphey, acting Special Agent in Charge, U.S. Immigration and Customs Enforcement’s Homeland Security Investigations (HSI), Detroit field office.

According to the complaint, Han is a citizen of the PRC who is currently pursuing a Ph.D. from the College of Life Science and Technology in the Huazhong University of Science and Technology (HUST) in Wuhan, PRC. In 2024 and 2025, Han sent four packages to the United States from the PRC containing concealed biological material. These packages were addressed to individuals associated with a laboratory at the University of Michigan. On June 8, 2025, Han arrived at the Detroit Metropolitan Airport on a J1 visa.

Customs and Border Protection officers conducted an inspection of Han, during which Han made false statements about the packages and the biological materials she had previously shipped to the United States. CBP officers also found that the content of Han’s electronic device had been deleted three days prior to her arrival in the United States. At the conclusion of the border inspection, Han was interviewed by agents from the Federal Bureau of Investigation and ICE HSI. During this interview, Han admitted to sending the packages, admitted that the packages contained biological material related to round worms, and admitted to making false statements to the CBP officers during her inspection.

[…] United States Attorney Gorgon stated: “The alleged smuggling of biological materials by this alien from a science and technology university in Wuhan, China—to be used at a University of Michigan laboratory—is part of an alarming pattern that threatens our security. The American taxpayer should not be underwriting a PRC-based smuggling operation at one of our crucial public institutions.” (read more)