First world-wide public health campaign: Balmis smallpox vaccination expedition, 1803-1806
Jenner's Inquiry (1798) immedidately captured the interest of the Spanish Crown. Nov. 30, 1798, Charles IV issued an order that vaccination be extended throughout the Spanish dominions.
Spain: the Royal Academy de Medicine approved publications on this topic quickly. “se ha propagado en España con indecible rapidez, …”
Spanish America: Francisco Xavier de Balmis (1803-6) extraordinary philanthropic odyssey from Spain to the Americas and the Phillipines.