There has never been a successfull mRNA vaccine before now.
by Pjnuge (2021-04-12 21:38:31)

In reply to: mRNA vaccines have been in development for years  posted by bleedsgreen04

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The RSV mRNA vaccine was a failure and never made it into mass production.I am not concerned with the safety profile of any of these vaccines but would be more concerned with a new process than one in use for decades.

The historic failed RSV vaccine wasn't mRNA
by AquinasDomer  (2021-04-13 01:28:26)     cannot delete  |  Edit  |  Return to Board  |  Ignore Poster   |   Highlight Poster  |   Reply to Post

There are some early MRNA TSV trials going on now. Also Novavax uses a nanoparticle delivery system we haven't used before. The adenovirus used in J&J has only been used with Ebola vaccine attempts... not exactly long lasting tech.

They're all safe, but the mRNA new = less safe isn't a great arguement.