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Also, during the H1N1 scare a vaccine used in Europe caused some people to develop narcolepsy (though perhaps more would have gotten it from the virus itself wi

Also, during the H1N1 scare a vaccine used in Europe caused some people to develop narcolepsy (though perhaps more would have gotten it from the virus itself without a vaccine). It can be hard to determine that something is “safe” quickly.

saalweachter 6y ago
SARS-CoV-2 is also at a really awkward point in the fatality curve (with the best estimate of the IFR being around 1%) that you really want to do something, but you also can't really accept a significant chance of that something having a significant side effect.