The term "healthy donor samples" refers to varied human biomaterials such as serum, plasma, feces, urine, saliva, whole blood samples obtained from donors whose self-reporting indicates that they are in good health. The samples are voluntarily donated by individual of all ages, genders, and nationalities. The Central Biohub offers a vast inventory of self-reported healthy donor samples that serve as the ideal control for testing or calibrating diagnostic procedures and devices in medical research. Also, healthy donor samples can make a substantial contribution to population studies and in-vitro human epidemiological research.