Serious medical research used to take decades before any conclusions were reached.
Today everything is “urgent” and the short-cuts and lying and propaganda are considered “normal”.
I think you might have been misinterpreting my post.
I meant the people scared of the vaccine are comforting themselves by saying the bad side effects of the vaccine don’t occur for . . . longer and longer periods of time. This way the anti-vaxers can still try to remain credible.