While overall vaccine skepticism has barely budged in months, reluctance fell to an all-time low this week among adults who watch Fox News: 27 percent of viewers now say they probably or definitely won’t get vaccinated, down from 30 percent the week before and a high of 37 percent in mid-March.

When it comes to people’s attitudes around vaccines, their media diet matters, and Fox News is far from the only influential platform. Among a group of 15 news channels, newspapers and social media platforms, Snapchat users are the most likely to say they don’t plan to get vaccinated, at 35 percent, followed by Instagram users, at 31 percent, and Reddit and Facebook users, each at 30 percent.