Smallpox vaccination of hospital personnel urged.
D003428:Cross Infection; D004196:Disease Outbreaks / Q000517:prevention & control; D004739:England; D006761:Hospitals; D010564:Personnel, Hospital; D011159:Population Surveillance; D012899:Smallpox / Q000517:prevention & control*; D014481:United States; D014492:United States Public Health Service; D014611:Vaccination; D014837:Voluntary Health Agencies