Gene-edited pigs are protected from porcine reproductive and respiratory syndrome virus.

Order of authorship in the original publication: Whitworth, Rowland, Ewen, ... Prather. Using the CRISPR Cas molecular gene-editing tool, Prather and colleagues edited the gene that codes for the CD163 protein in adult male and female pigs gametes (sperm and egg) that acts similar to a receptor to which the Porcine reproductive and respiratory syndrome virus (PRRSV) attaches. This artificial genetic mutation created offsprint piglets that were resistant and immune to this panzootic infection which was previously lethal and incurable.

(Thanks to Juan Weiss for this reference and its interpretation.)