This is actually an excellent point that is not made often enough. Most vaccine trials are done over years, so they have smaller numbers because more people get infected. The COVID-19 trials are VASThttps://twitter.com/dfreedman7/status/1331699376419459072 …
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Replying to @GidMK
Yep. But what about possible long term side effects? Size do not solve them.
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Replying to @Meir_Rubin
Was just writing the second tweet that said this 
1:02 PM - 25 Nov 2020
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