As long as vaccines have existed, some have doubted their science and safety. In 19th-century England, riotous opposition to a mandatory smallpox vaccine claimed it violated civil rights and bodily integrity. In the United States, resistance groups date back to the 1894 Anti‑Compulsory Vaccination League of Brooklyn.

Today, vaccine hesitancy—often linked to the Make America Healthy Again movement and its icon Robert F. Kennedy Jr.—remains a stubborn issue. Public health advocates typically counter misinformation with accurate data, but vaccine‑skeptic groups use storytelling to amplify dynamic, emotionally resonant narratives. Their stories are less constrained than pro‑vaccine messages, which must remain faithful to complex scientific realities.

The “information deficit” approach, which assumes mistrust stems from under‑education, has លimited success. The growth of hesitant voices shows that the problem is not a lack of facts but a “wicked problem” fueled by misinformation, social belonging, and religious beliefs.

Effective communication must therefore address the emotional and social dimensions that factual data alone cannot reach.