The DPT vaccine is given toyoung babies to protect them from A)diphtheria, polio and tetanus B)diphtheria, pneumonia and tuberculosis C)diphtheria, smallpox and tetanus D)diphtheria, whooping cough and tetanus
Option D) DPT refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. The vaccine components include diphtheria and tetanus toxoids, and killed whole cells of the organism that causes pertussis.