Live vaccines are made from greatly weakened forms of disease-causing organisms. Often, live vaccines provide full protection after one or two doses. Examples of live vaccines include oral polio ...

Vaccine shedding is when components of a vaccine are released into the body or out into the environment. This can only happen in live-attenuated vaccines that contain a weakened form of a pathogen.

Live attenuated vaccines may cause neurotropic complications, especially in immunocompromised individuals. The yellow fever vaccine can lead to neurotropic disease (YEL-AND), manifesting as ...

Making Vaccines by Rick Groleau Today there is mounting concern about the threat of a bioterrorist attack using smallpox—so much concern that in October 2001 the American government decided to ...

The claim: CDC data shows COVID-19 vaccines could lower life expectancy by up to 24 years. A Sept. 4 Instagram post (direct link, archive link) shows a screenshot of a post on X, formerly Twitter ...