News / Africa

Scientists Aim to End HIV Epidemic

Anthony Fauci of the National Institute of Allergy and Infectious Diseases speaks at the XIX International AIDS Conference, July 23, 2012, in Washington.
Anthony Fauci of the National Institute of Allergy and Infectious Diseases speaks at the XIX International AIDS Conference, July 23, 2012, in Washington.

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Joe DeCapua
The HIV/AIDS epidemic is more than 30 years old. However, at the 19th International AIDS Conference Tuesday there was talk of ending the epidemic through scientific advances and public health policy.



Dr. Anthony Fauci said it was many “incremental steps” over more than 30 years that led to today’s major advances against HIV/AIDS.

“We want to get to the end of AIDS. That will only occur with some fundamental foundations. And these foundations are basic and clinical research, which will give us the tools, which will ultimately lead to interventions and then ultimately these will need to be implemented together with studies about how best to implement them,” he said.


The director of the National Institute of Allergy and Infectious Diseases said the “scientific basis” exists to “consider the feasibility and the reality of an HIV/AIDS-free generation.”

Fauci said the understanding of the HIV replication cycle is “probably the most important of the accumulation of scientific advances.” It revealed some of the virus’ vulnerabilities.

“It’s that kind of basic science which brings us to the next step. And that is the step of interventions predominantly in the arena of treatment and prevention.”

Fauci said the first antiretroviral drug, AZT, offered a “glimmer of hope.” But its effects were small and didn’t last long. Years later, two drugs were used. Better results, but still not good enough.

“Then the transforming meeting in Vancouver in 1996 with a three drug therapy. [It] brings down the virus to below detectable levels, stays there potentially indefinitely and we have a new dawn of therapeutics with HIV/AIDS that have transformed the lives of individuals,” he said.

There are now 30 drugs approved to treat HIV.

“We can’t stop there,” said Fauci, “because there are still those who are not responding to these drugs and we still need long acting drugs, particularly with regard to adherence.”

In the early days of the epidemic, half of his patients died within six to eight months of their initial visit.

“Now, if a person walks into our clinic at the NIH or any other place that has a availability of treatment – is young, 25, been recently infected – you put them on combination therapy. And you can look them in the eye and tell them it is likely, if they adhere to that regimen, that they will live an additional 50 years,” he said.

However, Fauci warned that antiretrovirals won’t do any good if people don’t know they’re infected. He said 20 percent of the more than one million people believed infected in the U.S. have never been tested. Only 30 percent are on treatment. He says what’s needed is a “care continuum.

“That is, seeking out, testing, linking to care, treating when eligible and making sure they adhere,” he said.

Recent studies have proven that antiretroviral drugs can greatly reduce transmission risk from an infected partner to an uninfected partner. And the drugs have been shown that when taken by uninfected people they can act as a prophylaxis. It’s known as Treatment as Prevention.

There have also been advances in vaccine research. The results are not good enough to produce an effective vaccine, but they’re encouraging.

Fauci said, IF we were able to plug in a vaccine block, we would surely have a very robust combination prevention package even if it wasn’t a perfect vaccine - even if it was a 90 percent or 80 percent – we could do it.”

And a cure? Scientists are working on a few possibilities, such as finding a way to eradicate the virus from the body or what Fauci calls a “functional cure.” That is, enhancing the body’s immune system to specifically deal with HIV or somehow modify cells to resist the virus. Fauci called it a “scientific challenge.” Nevertheless, he said it can be done.

“Today, in July, of 2012, the statement that we don’t have the scientific basis to implement is no longer valid. We do. That’s the point,” he said.

Fauci added it will not happen spontaneously. He says, “A lot of people, a lot of countries, a lot of regions have a lot to do."

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