Technology

Exactly this. What's annoying is how people twist the process along the way.

For example, with the AstraZeneca vaccine there was this overblown controversy over blood clots. Every time you stick someone with a needle, their blood will clot, and there's a chance that a chunk of this clot will break off into the blood stream. Sometimes, the thing you're injecting makes it more likely to happen, and as such we closely monitor new injections to determine whether or not the issue is significant. AstraZeneca (or any other covid vaccine) has been shown to not significantly increase the risk of blood clots over any other injection - but that didn't stop politicians (eg Boris Johnson in the UK) to parrot on about the handful of people who did develop blood clots as if it were a real issue. Of course, this led to AstraZeneca no longer being offered as a vaccine for many people; instead, Pfizer and Moderna vaccines were used. Wouldn't you know it, Boris is personally invested in these companies. He shooed away the non-profit vaccine in favour of the for profit pharmaceutical mega-corporations that pay him dividends. And, of course, his statements actually reduced the uptake of vaccines in general.