A Variety of Vaccines: A History of Vaccine Development

The video explores the history and development of vaccines, starting with variolation and early vaccination efforts. It highlights Louis Pasteur's accidental discovery of weakened bacteria for immunization and subsequent advancements in vaccine development. The video explains different types of vaccines, including live attenuated, inactivated, and toxoid vaccines, and discusses the evolution of vaccine production techniques. It also covers recent innovations, such as recombinant DNA technology and conjugate vaccines, and emphasizes the significant impact vaccines have had on global health.

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