In a letter from 1787 to be sold at auction this week, the Russian empress called for widespread access to a precursor of the smallpox vaccine.In a letter from 1787 to be sold at auction this week, the Russian empress called for widespread access to a precursor of the smallpox vaccine.Read MoreAuctions, Catherine II, Empress of Russia, Russia, St Petersburg (Russia), Art, Smallpox, Vaccination and Immunization
