In other words, YouTube creates filter bubbles where viewers are exposed to repetitive, homogenous, and often biased content, which further reinforces biases and misconceptions. YouTube has come under criticism because its recommendation algorithm keeps viewers watching videos by suggesting similar videos based on their viewing histories. In both studies, antivaccine videos received more views and likes than provaccine videos. A more recent study of influenza and measles-mumps-rubella vaccine videos on YouTube showed that around 20% and 30% of the videos were antivaccine in nature, respectively. Researchers examined 172 YouTube videos related to the human papillomavirus vaccine and concluded that only slightly over 30% of the videos were provaccine. However, it is a hotbed for antivaccine information.

YouTube is the largest video-sharing platform in the world with more than 1 billion users.

In some cases, social media platforms such as Twitter have even been weaponized to promote antivaccine messages through the use of bots and trolls. Furthermore, social media can indirectly influence the public by setting the agenda of traditional mass media in vaccine-related controversies. The consumption of antivaccine social media content could negatively impact vaccine attitudes and consequently vaccine uptake.

Earlier studies have demonstrated that social media platforms such as Pinterest and Twitter are filled with antivaccine information. The proliferation of social media has allowed the antivaccine movement to become more influential than at any point in history.

Jing software youtube