http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A study of how HIV mutates in response to immune system pressure by Emory Vaccine Center researchers shows that the virus can take several escape routes, not one preferred route. http://www.physorg.com/news172561791.html Medicine & Health Sat, 19 Sep 2009 06:51:22 EST news172561791 Following the disbandment of the STEP trial to test the efficacy of the Merck HIV-1 vaccine candidate in 2007, the leading explanation for why the vaccine was ineffective - and may have even increased susceptibility to acquiring the virus - centered on the hypothesis that high levels of baseline Ad5-specific neutralizing antibodies may have increased HIV-1 acquisition among the study subjects who received the vaccine by increasing Ad5-specific CD4+ T-cells that were susceptible to HIV-1 infection. http://www.physorg.com/news167328837.html Medicine & Health Mon, 20 Jul 2009 21:20:03 EST news167328837 A team of researchers from The Wistar Institute and the University of Pennsylvania reports new evidence refuting a popular hypothesis about the highly publicized failure in 2007 of the Merck STEP HIV vaccine study that cast doubt on the feasibility of HIV-1 vaccines. The findings were published on-line July 20 in Nature Medicine. http://www.physorg.com/news167316214.html Medicine & Health Mon, 20 Jul 2009 14:30:01 EST news167316214 Many scientists believe a vaccine that prevents HIV infection will need to stimulate the body to make neutralizing antibodies, infection-fighting proteins that prevent HIV from entering immune cells. Previous research has shown that some individuals who control HIV infection without medication naturally produce antibodies able to neutralize diverse strains of HIV. Until now, however, scientists were hampered in studying the way effective HIV-neutralizing antibodies arise during natural HIV infection because scientists lacked the tools to obtain more than a few HIV-specific antibodies from any given individual. http://www.physorg.com/news156428787.html Medicine & Health Mon, 16 Mar 2009 13:26:47 EST news156428787 (PhysOrg.com) -- Scientists at Duke University Medical Center have for the first time isolated an important antibody in human serum that could potentially play a key role in the design of an AIDS vaccine. The research appears as a highlighted feature online in the Journal of Virology. http://www.physorg.com/news154627006.html Medicine & Health Mon, 23 Feb 2009 16:01:14 EST news154627006 Scientists from the Gladstone Institute of Virology and Immunology (GIVI) and the National Institutes of Allergy and Infectious Diseases (NIAID) have identified a gene that may influence the production of antibodies that neutralize HIV. This new information will likely spur a new approach for making an HIV vaccine that elicits neutralizing antibodies. Neutralizing antibodies, once produced in the host, can attack and checkmate an infecting virus. The research was reported in the September 5 issue of Science. http://www.physorg.com/news139757724.html Medicine & Health Thu, 04 Sep 2008 14:35:24 EST news139757724 After soliciting and considering broad input from the scientific and HIV advocacy communities, the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH), has determined that it will not conduct the HIV vaccine study known as PAVE 100. http://www.physorg.com/news135509645.html Medicine & Health Thu, 17 Jul 2008 10:34:05 EST news135509645