MSTN and muscular dystrophy: We can cite the disruption of the CD163 gene in pigs by CRISPR conferring resistance to PRRSV infection, the activation of the MSTN gene (myostatin) in sheep and cow resulting in meat production improvement (for review, see (Menchaca et al. 2020) or the correction of muscular dystrophies in dogs using CRISPR targeting the DMD gene (dystrophin) (Amoasii et al. 2018).