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by alphabettsy 1612 days ago
> There is a reason vaccines take a long time to develop.

What is the reason?
1 comments
landemva 1612 days ago
Lack of efficacy for the risk (search Vioxx deaths) and antibody dependent enhancement both require significant time to observe.

https://www.npr.org/2007/11/10/5470430/timeline-the-rise-and...

link