Disinformation is effective. https://jamanetwork.com/journals/jama/fullarticle/2818265
“less so" is doing some heavy lifting here.
About of third of the sample think Ivermectin is an effective treatment for COVID; one in five think more people have died from the vaccine than the virus. Those are not small percentages.
Unfortunately there is no vaccine for wilful ignorance and if there was those that needed it would avoid it.
@JoshuaHolland Just to be clear, are the reddish lines the percentage of people in general or the percentage of people who "heard or read the false claim"?
It's the difference between one in 5 and one in 12 believing more people died of the vaccine than the Covid virus (although either number is horrific).