Smallpox ten years gone: what next?
D003140:Communicable Disease Control / Q000379:methods*; D004165:Diphtheria / Q000517:prevention & control; D006801:Humans; D008457:Measles / Q000517:prevention & control; D009107:Mumps / Q000517:prevention & control; D011051:Poliomyelitis / Q000517:prevention & control; D012410:Rubella Syndrome, Congenital / Q000517:prevention & control; D014611:Vaccination