What you should know about communicable diseases and their immunizations. Part II. Diphtheria, pertussis, tetanus, and polio.
D002675:Child, Preschool; D004165:Diphtheria / Q000517:prevention & control*; D006801:Humans; D007114:Immunization; D007223:Infant; D011051:Poliomyelitis / Q000517:prevention & control*; D013742:Tetanus / Q000517:prevention & control*; D014917:Whooping Cough / Q000517:prevention & control*