Vaccination policies for the 80's.
D001428:Bacterial Vaccines / Q000627:therapeutic use; D006801:Humans; D010272:Parasitic Diseases / Q000517:prevention & control; D014611:Vaccination / Q000639:trends; D014612:Vaccines; D014765:Viral Vaccines / Q000627:therapeutic use
D001428:Bacterial Vaccines; D014612:Vaccines; D014765:Viral Vaccines