I took graduate courses in microbiology at the University of Tennessee. In one course we studied the “Cutter Incident” and several other not well known incidents. One was where a vaccine against an Adenovirus was developed to use on military recruits because the Adenovirus was causing some severe respiratory problems in USAF recruits. The vaccine was tested on 1000 USAF recruits in January of 1974 to a rousing success until further research found that the vaccine piggybacked an “Onc” gene, a gene that caused cancer in laboratory animals. I would have never known that I was one of the recruits that received that vaccine had I not taken a graduate course in virology taught by one of the developers of the vaccine. I take the flu vaccine yearly and other vaccines needed for older citizens.
This is precisely my intent...for all to be as fully-informed as possible.
I have no doubt that the FDA will have all firms run through the ringer (a ringer that usually requires a 6-foot tall pile of research costing $250MM) so I don't have that DNC-instilled "they're gonna cut corners under Trump" concern.
But operational risks are aplenty in something like this, and I suspect people believe it's smooth sailing once you get FDA approval. As this story shows, that's not always the case.