Transmitted/founder and chronic subtype C HIV-1 use CD4 and CCR5 receptors with equal efficiency and are not inhibited by blocking the integrin α4β7. oleh Nicholas F Parrish, Craig B Wilen, Lauren B Banks, Shilpa S Iyer, Jennifer M Pfaff, Jesus F Salazar-Gonzalez, Maria G Salazar, Julie M Decker, Erica H Parrish, Anna Berg, Jennifer Hopper, Bhavna Hora, Amit Kumar, Tatenda Mahlokozera, Sally Yuan, Charl Coleman, Marion Vermeulen, Haitao Ding, Christina Ochsenbauer, John C Tilton, Sallie R Permar, John C Kappes, Michael R Betts, Michael P Busch, Feng Gao, David Montefiori, Barton F Haynes, George M Shaw, Beatrice H Hahn, Robert W Doms