The provided podcast episodes discuss various aspects of vaccination, including the importance of vaccination for childhood health, vaccine hesitancy, the resurgence of vaccine-preventable diseases like measles, and the development and rollout of new vaccines for respiratory syncytial virus (RSV).

For example, episode "How to Raise Healthy Kids: A Functional Medicine Approach" touches on the controversial topic of vaccines and the need for a more personalized, intelligent approach. Episode "East meets West: The differences and similarities of child health and parenting in India and the U.S." also explores vaccine hesitancy and the importance of vaccination in preventing diseases like polio. The "Measles Is Back, and That's Scary" episodes (1, 2) discuss the safety and effectiveness of the measles vaccine, as well as the implications of declining vaccination rates and the rise of non-medical exemptions.

The episodes also cover the development and rollout of new vaccines, such as the RSV vaccine discussed in episode "For 60+ years, respiratory syncytial virus (RSV) vaccines have evaded scientists. But now that's changed". Additionally, episode "What You Need To Know About The Current Tripledemic" discusses the importance of vaccination against flu and COVID-19 as a preventive measure against the ongoing 'tripledemic' of respiratory illnesses.