Because ethics. A concept anti-vaccine nutters seem to have trouble understanding.https://twitter.com/jhonnyjblaze/status/736039912588201985 …
There have been plenty of retrospective and cohort studies, but it's basically impossible to do an RCT.
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yep. Those studies exist. Lol @ anti vaxers asking for X-over RCTs
#lrntoscience -
And then they come out with a theoretical lab-bench study from 1975 as their evidence that VACCINES ARE SCARY (wooo
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End of conversation
New conversation -
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