title: The concept of virus attenuation in the eighteenth and early nineteenth centuries.
authors.affiliation: Vossekouter 29, B-3040 Huldenberg, Belgium.
authors.forename: C
authors.initials: C
authors.lastname: Huygelen
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines / Q000266:history*; D018151:Capripoxvirus; D049671:History, 18th Century; D049672:History, 19th Century; D006801:Humans; D011213:Poxviridae Infections / Q000266:history / Q000517:prevention & control; D012900:Smallpox Vaccine / Q000266:history; D014613:Vaccines, Attenuated / Q000266:history*; D014765:Viral Vaccines / Q000266:history*
chemical_list: D001428:Bacterial Vaccines; D012900:Smallpox Vaccine; D014613:Vaccines, Attenuated; D014765:Viral Vaccines