title: Does smallpox linger as risk to hospital personnel?
mesh_terms: D004739:England; D006801:Humans; D007114:Immunization / Q000009:adverse effects; D007753:Laboratories / Q000592:standards; D007757:Laboratory Infection / Q000517:prevention & control*; D009784:Occupational Diseases / Q000517:prevention & control; D010356:Patient Isolation / Q000379:methods; D010564:Personnel, Hospital; D012306:Risk; D012899:Smallpox / Q000517:prevention & control / Q000635:transmission*; D014481:United States; D012901:Variola virus