Philanthropy.      Gates gives booster shot to AIDS vaccines.
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D016915:AIDS Vaccines / Q000191:economics*; D000818:Animals; D002608:Charities; D002986:Clinical Trials as Topic; D004345:Drug Industry / Q000191:economics; D005582:Foundations / Q000191:economics*; D006801:Humans; D012109:Research Support as Topic
D016915:AIDS Vaccines