Vaccines--endangered species?
D003141:Communicable Diseases / Q000276:immunology; D006801:Humans; D007114:Immunization / Q000009:adverse effects / Q000191:economics / Q000592:standards*; D014481:United States / Q000453:epidemiology; D014486:United States Food and Drug Administration; D014612:Vaccines / Q000009:adverse effects / Q000191:economics / Q000600:supply & distribution*
D014612:Vaccines