Francisco Javier Balmis, a Spanish doctor, began a philanthropic expedition and traveled around the world in his ship between 1803 and 1814, to reach every corner and vaccinate people against smallpox, given the high death rate the virus ...See moreFrancisco Javier Balmis, a Spanish doctor, began a philanthropic expedition and traveled around the world in his ship between 1803 and 1814, to reach every corner and vaccinate people against smallpox, given the high death rate the virus was causing among children, and only a sweet could prevent this.
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