Contrary to what antivaxxers say, #VAERS is NOT the be-all and end-all of vaccine safety monitoring. There are active surveillance systems in addition to the passive VAERS (e.g., VSD, CISA, PRISM). 1/https://twitter.com/fensandspineys/status/1384200697978114058 …
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Antivaxxers love to pretend that
#VAERS is the only vaccine safety monitoring system because of its limitations and design. It’s intended as an early warning system, not a definitive indicator of causation or incidence of adverse events after vaccination. 2/9 replies 2 retweets 42 likesShow this thread
In other words, when it comes to the question of whether a given adverse event might be caused by a given vaccine, #VAERS is hypothesis generating, NOT hypothesis confirming or rejecting. Antivaxxers infer causation when none can be concluded from VAERS data alone. 3/3
8:34 AM - 20 Apr 2021
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