Comment on

• Cloned pigs produced by nuclear transfer from adult somatic cells.

  Polejaeva IA, Chen SH, Vaught TD, Page RL, Mullins J, Ball S, Dai Y, Boone J, Walker S, Ayares DL, Colman A, Campbell KH. Polejaeva IA, et al. Nature. 2000 Sep 7;407(6800):86-90. doi: 10.1038/35024082. Nature. 2000. PMID: 10993078
• Infection by porcine endogenous retrovirus after islet xenotransplantation in SCID mice.

  van der Laan LJ, Lockey C, Griffeth BC, Frasier FS, Wilson CA, Onions DE, Hering BJ, Long Z, Otto E, Torbett BE, Salomon DR. van der Laan LJ, et al. Nature. 2000 Sep 7;407(6800):90-4. doi: 10.1038/35024089. Nature. 2000. PMID: 10993079