[Introduction of the smallpox vaccine in Puerto Rico, 1804].
D049672:History, 19th Century; D006801:Humans; D011647:Puerto Rico; D012899:Smallpox / Q000266:history* / Q000517:prevention & control; D012900:Smallpox Vaccine / Q000266:history*
D012900:Smallpox Vaccine
Introducción de la vacuna de viruela en el sur de Puerto Rico, 1804.