Why Vaccines Work

The video discusses the history of scurvy and the discovery of Vitamin C's role in its prevention. It highlights the success of vaccines in eradicating diseases like polio and the importance of maintaining high vaccination rates to prevent the resurgence of diseases like measles. The immune system's function and the concept of herd immunity are explained. The video also addresses vaccine hesitancy, its historical roots, and the minimal risks associated with vaccines, emphasizing the altruistic nature of vaccination.

What is herd immunity and how does it relate to vaccination rates?

What are some common misconceptions about vaccines that contribute to vaccine hesitancy?

What historical context led to the development of the smallpox vaccine?