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Scientists hope that an HIV vaccination could be in sight after tests on hundreds of adults and animals have shown "promising" results.
The vaccine could potentially protect people around the world from the threat of HIV.
New drug testing has prevented two-thirds of monkeys from contracting an HIV-like virus and stimulated an immune system immune response in 400 healthy adults, according to the Lancet study [19659004]. The horizon after "promising" drug test results ” class=”img-align-none size-full wp-image-7692196″ data-rewritten=”true”/>
More tests will be needed to determine if the immune response can prevent HIV infection.
About 37 million people worldwide are living with HIV or AIDS, and an estimated 1.8 million new cases each year
This is how brave divers will try to save boys in Thai caves
progress in the treatment of HIV, a cure or a vaccine against the virus have never been found.
Prep, or pre-exposure prophylaxis, is effective in preventing HIV infection, but unlike the vaccine, it must be taken regularly.
It is hoped that the new vaccine will provide much better protection against the almost unlimited number of HIV strains found in the world.
Only four HIV vaccines have already been tested According to the scientist responsible for the study, Dan Barouch, a professor of medicine at Harvard Medical School, added, "The challenges in the development of a HIV vaccine is unprecedented, and the ability to induce specific immune responses to HIV does not necessarily indicate that a vaccine will protect humans from HIV infection. "
What was the test?
Scientists have tested various combinations of mosaic vaccine in people aged 18 to 50 years old who did not have HIV and were in good health.
Participants from the United States, Rwanda, Uganda, South Africa, and Thailand, received four vaccinations in 48 weeks.
All vaccine combinations produced an anti-HIV immune system response and were shown to be safe.
Scientists also conducted a parallel study where they gave monkeys the vaccine to protect them from simian human immunodeficiency virus – a virus similar to HIV that infects monkeys.
The combination of mosaic vaccines that has shown the most promise in humans has protected 67% of the 72 monkeys.
The next step?
Scientists will now conduct a trial named & # 39; Imbokodo ', the Zulu word for rock, about 2,600 women in southern Africa
It is believed that women are exposed to HIV and scientists hope that vaccine tests will bring results by 2021
Dr. Michael Brady, Medical Director of Terrence Higgins Trust, said, "It is still very early for this HIV vaccine, but the signs are promising and very few trials are progressing toward tests in the who are at risk of contracting HIV "(1965, pfbApi) === undefined")
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