In a desperate attempt to reverse 25 years of failure to develop an Aids vaccine, scientists have a new approach: studying people who have been infected with HIV for many years without any signs of ill-health. The patients' secret? Natural immunity.
The researchers have investigated the virus-fighting antibodies found in the blood of six long-term survivors of HIV whose own immune systems appear to be capable of shrugging off the virus. Results of tests show that a prototype vaccine made from several of the antibodies produced by those long-term survivors can prevent HIV from infecting human cells. The experiments have been successful on human cells growing in a test tube. Now further trials are planned on laboratory animals and human volunteers.
Monday, March 16, 2009
Handful of 20-year HIV survivors hold key to discovering vaccine - Health News, Health & Wellbeing - The Independent