London: In a promising development that could potentially help those with HIV virus and AIDS, researchers at the Oregon National Primate Research Centre have developed an experimental vaccine that helped monkeys with a form of the AIDS virus successfully control the disease for more than a year.Louis Picker and his colleagues said Cytomegalovirus (CMV) works by priming the immune system to quickly attack the HIV virus when it first enters the body, a point at which the virus is most vulnerable.CMV enables the immune system to be constantly on the alert for HIV.Picker said he thinks it will be possible to have a vaccine ready to test in people within three years, reports the Daily Mail.Researchers used different versions of the vaccine against a monkey form of the Aids virus, SIV (Simian Immunodeficiency Virus) with outstanding results.More than half the rhesus macaques treated responded to the point where even the most sensitive tests detected no signs of SIV.
“The next step in vaccine development is to test the vaccine candidate in clinical trials in humans. For a human vaccine, the CMV vector would be weakened sufficiently so that it does not cause illness, but will still protect against HIV,” said Picker.CMV belongs to the herpes family of viruses, and like other members of the group never leaves the body once an infection has occurred. ‘What’s exciting about these findings is that for the first time a vaccine candidate has been able to fully control the virus in some animals,’ said Wayne Koff, chief scientific officer at the International AIDS Vaccine Initiative (IAVI), which helped fund the research.Koff said the findings also suggested the possibility that the immune system may eventually eliminate the virus altogether.The findings appear in the journal Nature.ANI
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