https://www.centerforhealthsecurity.org/our-work/pubs_archive/pubs-pdfs/2018/181009-gcbr-tech-report.pdf Self-Spreading Vaccines What is the technology? Self-spreading vaccines—also known as transmissible or self-propagating vaccines—are genetically engineered to move through populations in the same way as communicable diseases, but rather than causing disease, they confer protection. The vision is that a small number of individuals in the target population could be vaccinated, and the vaccine … Continue reading RED ALERT——SELF-SPREADING VACCINES: Johns Hopkins Center For Health Security (page 47 of the document)