|HIV-infected T cell.|
Conventional vaccines that produce antibodies work slowly and are ineffective since the virus mutates very rapidly. HIV infects our T cells crucial for our immune system, killing them and causing a condition known as AIDS. But if the virus could be blocked from even entering the cell, then it couldn't replicate and mutate further.
The new vaccine works so well that it could be used with people who already have HIV.
Lead researcher Prof Michael Farzan told the BBC: "We are closer than any other approach to universal protection, but we still have hurdles, primarily with safety for giving it to many, many people."