Mis- and disinformation have been prevalent throughout the COVID-19 pandemic, but in recent months anti-vax activists and conspiracy theorists have latched on to a new phrase to help their cause: “died suddenly.” Anti-vaxxers hoping to convince people that COVID vaccines are linked to sudden deaths among younger people have invoked the term while trying to exploit tragic events like the death of soccer journalist Grant Wahl, or Damar Hamlin suffering a cardiac arrest during an NFL game. Though that theory has no scientific evidence to support it, the “died suddenly” rhetoric has gained a lot of traction on social media....