title: USA firms up smallpox vaccine plans.
authors.forename: Kathryn
authors.initials: K
authors.lastname: Senior
mesh_terms: D006801:Humans; D011640:Public Policy; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine; D014481:United States; D014611:Vaccination
chemical_list: D012900:Smallpox Vaccine