The podcast episodes focus on the topic of maternal immunization, which is the process of vaccinating pregnant individuals to protect both the mother and their unborn child by transferring antibodies.

The episodes discuss the development process for maternal immunizations, including identifying pathogens, clinical trials, and technological innovations The Road Ahead: From Maternal Vaccine Development to Administration. They also examine the barriers to widespread maternal immunization uptake, such as access, affordability, awareness, and acceptance, and discuss potential solutions to overcome these challenges Maternal Vaccines: Breaking Barriers and Finding Solutions.

The episodes provide an overview of maternal immunization, exploring the history, science, and importance of this practice, as well as the challenges and considerations involved in its implementation Maternal Immunization 101. The podcast series as a whole focuses on maternal immunization, highlighting its significance in protecting both mothers and their babies Introducing The Antigen Season 3: Maternal Immunization.