@kityates Whilst I acknowledge it is disinformation I think the question often overlooked is why people continue to believe these things. There was a study done during COVID (I really hope I can find it again) about misinformation and why certain communities believe lies like this one. It found particularly in areas of the USA with high African-American populations this type of misinformation was more likely to be believed as many have memories or knowledge of vaccination regimes that did actually spread smallpox amongst these communities knowingly.
It takes numerous generations for this kind of distrust to stop influencing opinion when justice is never achieved.