First there’s the Vaccine Adverse Event Reporting System (VAERS). It’s a passive reporting system that serves as an early warning system, a “canary in the coal mine,” if you will. 4/
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Oops. Prematurely hit the “Tweet button.”
In any event, the FDA used PRISM to identify a link between a rotavirus vaccine and an increased risk of intussusception in infants. 15/Show this thread -
So, to conclude,
@marwilliamson, like all antivaxxers, is utterly clueless about the multiple systems already in existence, one passive, and three active surveillance systems, to monitor vaccine safety in the US, and she just demonstrated it again. 16/16Show this thread
End of conversation
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