You are currently viewing the abstract.AAAS login provides access to Science for AAAS members, and access to other journals in the Science family to users who have purchased individual subscriptions.Log in via OpenAthens.Log in with your institution via Shibboleth.Download and print this article for your personal scholarly, research, and educational use.Buy a single issue of Science for just $15 USD.The role of microorganisms in causing and sustaining cancers has been in dispute for centuries. Through the lens of gut- and tumor-associated microbes, Sepich-Poore et al. review our current...…You are currently viewing the abstract.AAAS login provides access to Science for AAAS members, and access to other journals in the Science family to users who have purchased individual subscriptions.Log in via OpenAthens.Log in with your institution via Shibboleth.Download and print this article for your personal scholarly, research, and educational use.Buy a single issue of Science for just $15 USD.The role of microorganisms in causing and sustaining cancers has been in dispute for centuries. Through the lens of gut- and tumor-associated microbes, Sepich-Poore et al. review our current...WW…