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Does anyone know the dangers of a "bad batch" of vaccines, specifically with Covid?

Here's a bit of digging on some of the dangers of smallpox[1]. Apparently, you can get something called progressive vaccinia which eats away at your skin.[2]

[1] https://www.cbsnews.com/news/the-most-dangerous-vaccine/

[2] https://en.wikipedia.org/wiki/Progressive_vaccinia

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"After the program began, the vaccine was associated with an increase in reports of Guillain-Barré Syndrome, which can cause paralysis, respiratory arrest, and death."

This vaccine was rushed which had deadly results.

https://en.wikipedia.org/wiki/1976_swine_flu_outbreak

> "There is not even complete agreement about the causal relationship between the swine flu vaccine and Guillain-Barré syndrome"

> "Studies suggest that it is more likely that a person will get GBS after getting the flu than after vaccination"

In the worst case, about 450 people got Guillain-Barre due to the vaccine. Counterfactually, some thousands or even a million Americans might have died from the swine flu itself.

the Cutter Incident comes to mind. https://en.wikipedia.org/wiki/Cutter_Laboratories#Cutter_inc...

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