Great Moments In Science - With Dr Karl Kruszelnicki
Development of vaccines
- Autor: Vários
- Narrador: Vários
- Editor: Podcast
- Duración: 0:06:57
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Sinopsis
Vaccines are not a new invention. One of the very first effective vaccinations against disease came from China about 1,500 years ago - and was widely used there to combat Smallpox.
