E&C Leaders Request Details from NIH About Two Laboratory Researchers Who Allegedly Transported Biological Materials into the U.S. Illegally
WASHINGTON, D.C. – Congressman Brett Guthrie (KY-02), Chairman of the House Committee on Energy and Commerce, Congressman John Joyce, M.D. (PA-13), Chairman of the Energy and Commerce Subcommittee on Oversight and Investigations, and Congressman Morgan Griffith (VA-09), Chairman of the Energy and Commerce Subcommittee on Health, wrote to the Director of the National Institutes of Health (NIH), Dr. Jay Bhattacharya, about concerns arising from two NIH researchers who, based on allegations in a recent federal criminal complaint, improperly transported biological materials into the U.S. To help inform the Committee’s oversight, the E&C leaders seek to better understand the circumstances surrounding the alleged importation of biological materials, the research activities involving those materials, the adequacy of existing oversight mechanisms, and any corrective actions undertaken by NIH.
“The announcement by the U.S. Attorney’s Office for the Eastern District of Michigan that two NIH researchers have been charged with conspiring to smuggle mpox and other biological material into the country is deeply concerning,” said Chairmen Guthrie, Joyce, and Griffith. “And what’s even worse is how a leading scientist allegedly misled CBP officers given the risks of improperly transporting such materials into our country. For these reasons and more, the Committee has questions about the incident, what actions are being taken in response to the incident, and what is being done to safeguard our country.”
The Committee has requested that a written response and all responsive materials be provided to staff no later than June 30, 2026.
BACKGROUND:
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On January 25, 2026, two NIH scientists, Dr. Vincent Munster and Dr. Claude Kwe, arrived at the Detroit Metropolitan Airport after traveling to Brazzaville, Republic of Congo. They were subjected to further inspection at the airport by U.S. Customs and Border Protection (CBP) agents after exhibiting nervous behavior while possessing a large, suspicious plastic case.
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According to the complaint, when asked about the case, the individuals claimed that the case only contained “diagnostic and testing equipment,” but did not disclose biological materials.
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The Federal Bureau of Investigation’s (FBI) subsequent investigation revealed the large plastic case contained biological materials, some of which an FBI laboratory test confirmed were deactivated mpox (formerly known as monkeypox) virus material, which Dr. Munster and Dr. Kwe would have needed specific documentation to transport via commercial flight and which would have required declaration to customs authorities upon arrival into the U.S.
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As of June 2, 2026, the FBI had only tested 20 of the vials. Seventeen of them contained deactivated mpox virus, one contained the chickenpox virus, and two contained human DNA.
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On June 2, 2026, the United States Attorney’s Office for the Eastern District of Michigan charged both scientists with conspiring to smuggle mpox and other biological samples into the U.S. and lying to law enforcement.
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NIH has stated that the individuals’ access to NIH facilities were terminated, the individuals acted on their own accord, and that NIH has continued to take this incident seriously and is working with the FBI.
Read the full letter HERE.
Read the full criminal complaint HERE.



