Experimental AIDS Vaccine Results Instills New Hope

September 24, 2009

(ChattahBox) — An experimental HIV vaccine has for the first time prevented infection with the AIDS virus, a landmark event in the battle against the deadly virus. The World Health Organization and the U.N. agency UNAIDS said the results “instilled new hope” in the field of HIV vaccine research. The U.S.-funded study involving more than 16,000 volunteers in Thailand found that a combination of  two previously unsuccessful vaccines, ALVAC, made by Paris- based Sanofi-Aventis SA, and AIDSVAX, from VaxGen Inc., of South San Francisco, cut infections by 31.2 percent in the people who received it compared with those on a placebo, scientists said today in Bangkok.  All of the participating volunteers were between ages 18 and 30, and HIV negative at the beginning of the trial. After three years, fifty-one people in the vaccine group eventually contracting HIV, compared with 74 in the placebo group.  The study was funded by the National Institutes of Allergy and Infectious Diseases and the U.S. Army Medical Research and Materiel Command.
Neither vaccine by itself as mentioned had stopped the virus that causes AIDS when tested separately in previous studies.  The combination of vaccines tested targeted strains circulating in Thailand, so it is unclear how the vaccines would work elsewhere. The hunt for a vaccine to prevent HIV has been ongoing since the 1980s, and recent failures led many scientists to think such a vaccine might never be possible. Most notably, Merck halted trials on a vaccine in 2007, which had been regarded as one of the most promising to date, after finding no difference in rates of HIV infection between vaccinated and unvaccinated volunteers.

Source: CNN


3 Responses to “Experimental AIDS Vaccine Results Instills New Hope”

  1. Experimental AIDS Vaccine Results Instills New Hope | ChattahBox … on September 24th, 2009 8:02 am

    […] time prevented infection with the AIDS virus, a landmark event in the battle against the deadly. Click for more Published: September 24, 2009 « Previous Post Next Post […]

  2. Anna Langella on September 24th, 2009 9:45 am

    I’m a little skeptical… There have been several promising vaccines in the pipes that have either failed or caused more harm than good.

  3. Alex Bronson on September 24th, 2009 8:31 pm

    now would be a good time to buy stock in whatever company plans on rolling out the AIDS vaccine final product

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