Vaccination at a crossroad: science, politics and public trust

Vaccine hesitancy threatens to erode one of medicine's greatest achievements. Recent measles outbreaks in Europe and the United States illustrate the consequences of declining confidence. At the centre lies misinformation, amplified through digital networks, from the discredited vaccine-autism claim to the misconception that COVID-19 mRNA vaccines were rushed. Such narratives echo longstanding resistance to vaccination, magnified by political polarisation and compounded by inequities in access. Yet pathogens continue to evolve, requiring sustained innovation in immunology, genomic surveillance, artificial intelligence and mRNA platforms. Science alone, however, cannot overcome mistrust. Transparent communication, broad engagement by healthcare teams and equitable distribution are indispensable. Protecting trust is essential if vaccines are to prevent disease, reduce mortality and prepare society for future infectious threats.