Seven unresolved questions for vaccine science in 2025

Vaccine Insights 2025; 4(1), 31–36

DOI: 10.18609/vac.2025.006

Published: 4 March
The Big Question
Jeffrey Ulmer, Ingrid Kromann, Marco Cavaleri, Cristiana Campa, Denny Kraichely, Christopher Ton, Ana Jaklenec


What is the greatest unresolved question in vaccine science today? Members of the Vaccine Insights expert editorial advisory board share their burning questions, and explain why answering them is crucial to the future of the field.