Vaccines - How Do They Work?

There's a lot imbedded in the different platforms, both by the delivery system and the insert. And the studies that we'll discuss in the other studies shed different kinds of light on how we elicit immune responses. So getting back to c f two thousand one, how did the trial work and what did the investigators find? This was a pretty typical phase thre vaccine study. Vaccine or placebo were administered as three doses based a month apart. The researchers followed patients, starting seven days after the last boost, for the development of infection and for severe disease.