Groups of scientists are currently developing ‘self-spreading vaccines’ that could infect others from vaccinated to unvaccinated people or between vaccinated to unvaccinated animals, according to National Geographic.
The experiment was designed to spread the vaccine to unvaccinated people in vaccinated person’s close proximity.
“The idea is that instead of a vaccine staying in one person’s body, the vaccine itself would infect them in such a way that they could pass on vaccination to others around them, much as they would otherwise pass on a disease. Scientists could vaccinate one person or animal in a community, and the vaccination would spread to those around them,” per Newsbreak.
According to the report, scientists are currently developing ‘contagious vaccines’ for Ebola, bovine tuberculosis, and Lassa fever, a viral disease spread by rats.
The scientists are also planning to expand their studies to other zoonotic diseases including rabies, West Nile virus, Lyme disease, and the plague.
The vaccines use cytomegalovirus (CMVs), a group that belongs to the herpes family. According to Mayo Clinic, once infected with the virus, your body retains the virus for life.