"We now have the technology to develop vaccines that spread themselves"... Creepy isn't. it ?
https://www.newscientist.com/article/mg24732960-100-we-no
We now have the technology to develop vaccines that spread themselves | New Scientist
Prevention is better than cure, so we should start using genetic techniques to stop dangerous animal diseases jumping to humans, say Scott Nuismer and James Bull
https://www.newscientist.com/article/mg24732960-100-we-no