Book excerpt: Viewing contemporary history from the perspective of the AIDS crisis, Jennifer Brier provides rich, new understandings of the United States' complex social and political trends in the post-1960s era. Brier describes how AIDS workers--in groups as disparate as the gay and lesbian press, AIDS service organizations, private philanthropies, and the State Department--influenced American politics, especially on issues such as gay and lesbian rights, reproductive health, racial justice, and health care policy, even in the face of the expansion of the New Right. Infectious Ideas places recent social, cultural, and political events in a new light, making an important contribution to our understanding of the United States at the end of the twentieth century.