Look at some of the names of these science people trying to implant human cells into animals......Asians, etc.
Interspecies Chimerism with Mammalian Pluripotent Stem Cells.
Wu J, Platero-Luengo A, Sakurai M, Sugawara A, Gil MA, Yamauchi T, Suzuki K, Bogliotti YS, Cuello C, Morales Valencia M, Okumura D, Luo J, Vilariño M, Parrilla I, Soto DA, Martinez CA, Hishida T, Sánchez-Bautista S, Martinez-Martinez ML, Wang H, Nohalez A, Aizawa E, Martinez-Redondo P, Ocampo A, Reddy P, Roca J, Maga EA, Esteban CR, Berggren WT, Nuñez Delicado E, Lajara J, Guillen I, Guillen P, Campistol JM, Martinez EA, Ross PJ, Izpisua Belmonte JC.
A novel humanized mouse model with significant improvement of class-switched, antigen-specific antibody production
“Transplantation of human hematopoietic progenitor cells into mice
Fetal liver samples were obtained from the Human Fetal Tissue Repository at Albert Einstein College of Medicine, Bronx, NY, and from Advanced Biosciences Resources, Alameda, CA.”
https://www.sciencedirect.com/science/article/pii/S0006497120336673#!
Click on this guy at the study: George D. Yancopoulos