Refactored genetic codes enable bidirectional genetic isolation https://www.science.org/doi/10.1126/science.add8943#.Y38upU8bPVg.twitter
The researchers changed how genetic information is encoded by DNA in the organisms and the new organism cannot transfer functional genes either way with other organisms. Nor could extant viruses attack them.
Well I guess that's the end of the Deus ex machina in War of the Worlds.
