Update: hepatitis B vaccine "the FDA approved the new vaccine on November 17, 1981".
D006509:Hepatitis B / Q000517:prevention & control; D006515:Hepatitis B virus / Q000276:immunology*; D006801:Humans; D014481:United States; D014486:United States Food and Drug Administration; D014765:Viral Vaccines / Q000592:standards*
D014765:Viral Vaccines