As the largest exporter of corneal tissue, the United States exported over one third of donated cornea tissue to countries across the globe in 2018 \[[@CR16]\], exemplifying the globalization of corneal transplantation. With the number of corneal transplants rising each year in the United States, and with dozens of countries using U.S. corneal tissue for transplantation, an understanding of the potential risk of iatrogenic transmission from donor to host through corneal tissue is essential, given its life-threatening implications. Creutzfeldt-Jakob disease is a debilitating, fatal prion disease that has been shown to cause infection in organ tissues, with reported cases of suspected iatrogenic transmission through neurosurgery \[[@CR23]\], kidney transplants \[[@CR24]\], and corneal transplantation in human beings. Although case reports of CJD transmission via corneal transplantation have been sporadic andsubassembly may be made of a first part and a complementary part. The label of the subassembly, which itself is made of at least two individual label portions, includes a label portion which is arranged on the first part. The subassembly label is completed by another label portion assigned to the complementary part.
The first part and the complementary part are inserted into one another to assemble the subassembly. The first part is made in the form of a housing for the complementary part, and this first part has a window at the end of its label portion. The complementary part has its label portion located in a position which is behind the window in the first part after the two parts are put together. From the outside, the