Gut microbiota from high-risk men who have sex with men drive immune activation in gnotobiotic mice and in vitro HIV infection. oleh Sam X Li, Sharon Sen, Jennifer M Schneider, Ka-Na Xiong, Nichole M Nusbacher, Nancy Moreno-Huizar, Michael Shaffer, Abigail J S Armstrong, Erin Severs, Kristine Kuhn, Charles P Neff, Martin McCarter, Thomas Campbell, Catherine A Lozupone, Brent E Palmer