 | The Difference between M-tropic and T-tropic HIV The previous experiment showed that cells from EU individuals are not infected by M-tropic HIV-1 strains, but they are infected by T-tropic strains. So what’s the difference between M-tropic and T-tropic HIV strains? INSTRUCTIONS: Click NEXT to see a figure of how M-tropic and T-tropic isolates differ in how they infect a cell. |  | |  |