Citation? It's a bold claim, without any evidence to back it up. HN is different than the comments section of a news site.
https://www.cdc.gov/vaccinesafety/concerns/concerns-history....
None of the side effects in that list took more than a few weeks to occur, and the majority them happened within a few days.
>HN is different than the comments section of a news site.
Tell me again how hacker news isn't reddit O user of 3 months.
Typically the dialogue is more...dialogue than just cynicism.
What's your reasoning it is Reddit?
Regardless of interpretation too, this doesn't support the claim the commenter made - there has never been a vaccine recalled within a year.