Because vaccine components can remain in the system for long periods of time, and because most of these disease take time to show themselves, causal link is rarely established. (siriusdog.com)
There are hints that the reverse engineering of vaccines has taken a leap forward in the case of RSV (respiratory syncytial virus): Scientists at Scripps Research Institute have designed vaccine components by computer and have used them to provoke neutralizing antibodies in monkeys. (emoryhealthsciblog.com)
«It's a powerful vaccine technology that efficiently delivers vaccine components to the right cells in the right tissues. (sciencedaily.com)