Table 1.

Description of video types.

Video types	Purpose	Example of video script
Narrative and rhetoric inoculation	Inoculate viewers against vaccine misinformation strategies, such as manipulation, scapegoating, or conspiratorial reasoning.	“Sometimes, people trying to change your mind this way will show pictures of needles, crying babies, or extreme close-ups of viruses. Sometimes, they’ll make videos with sounds that are scientifically proven to provoke a feeling of unease in humans. Strange, but true!”
Factual rebuttal inoculation	Counter false information about science and safety about vaccines.	“Sometimes, these people talk about ‘vaccine injury’. Actual injuries related to vaccines are extremely rare. Only two out of every one million people who received vaccine results even claimed to have been injured. Of those claims, about a third turned out not to be actual injuries related to vaccines.”
Hybrid	Combine fact-based information and inoculation against misinformation strategies.	“Sometimes, these people talk about ‘vaccine injury’. Actual injuries related to vaccines are so rare, you are nearly twice as likely to be struck by lightning.” “Actual injuries related to vaccines are extremely rare. You are 769 times more likely to die from COVID than to experience any vaccine injury.” “Sometimes, people trying to change your mind this way will show pictures of needles, crying babies, or extreme close-ups of viruses. Sometimes, they’ll make videos with sounds that are scientifically proven to provoke a feeling of unease in humans. Strange, but true!”