Vaccine hesitancy has become a widely debated topic during the COVID-19 pandemic, but the problem is as old as the practice of vaccination itself. Even when vaccination has demonstrably reduced the burden of disease, such as in the case of polio, misinformation and hesitancy persist. Polio is no longer the threat it once was, thanks to the existence of multiple vaccines; however, the endemic continues, in part due to pervasive vaccine hesitancy in certain regions in Afghanistan and Pakistan View More