Researchers at the University of Texas have developed a polymer-based delivery system which could lead to vaccines that would be more effective and specific to the infectious disease. The engineers have used ribonucleic acid (RNA) molecules for the purpose. The two year long study used the new system on mice, delivering a DNA-based hepatitis B vaccine. The immune response was found to be much stronger as compared to the conventional system.

A research conducted by the University of Texas Medical School has discovered some antibodies that have the potential to prevent an HIV-positive person from progressing to AIDS. This study could be used to develop a vaccine or microbicides to prevent people who are not infected with HIV from getting in contact with it. Catalytic antibodies attack on HIV’s outer shell where the virus binds to immune system cells, preventing the entry of virus into the cells. According to the researchers, the antibodies are present in lupus patients whose immune systems, generally, malfunction and produce a number of unusual antibodies.